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Fire Risk Consultancy Limited, Cade House, High Street, Molesworth, Huntingdon, PE28 0QF
www.frconline.co.uk [email protected]
IFE Level 2 Certificate in Fire Science, Operations and Safety- Revision
course
Unit 1 Fire Engineering Science
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David Ware has more than 30 years’ experience in Fire Safety and has focussed his knowledge and experience in producing the content for this course. He has a First-Class honours degree in Fire Engineering and is a Fellow of the Institute of Fire Engineers.
This course has been designed to enable individuals to demonstrate a wide range of critical knowledge and understanding relevant to the role of firefighter. Success in the qualification will enable individuals to demonstrate that they can apply their knowledge and skills to provide solutions in diverse fire and rescue situations.
This workbook has been produced to supplement the online course “The IFE Level 3 Certificate
in Fire Science, Operations and Safety Online Training Course”. The workbook is broken down into several modules. The candidate simply works through the modules whilst watching the online course.
Author
Introduction
Aim of Course
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The candidates will each be given an individual log in with an individual password. They will have access to complete all the core modules and the other selected modules. There are several self-assessment tests at the end of each module to confirm understanding. On completion of the course the delegates will be able to apply to sit the “The IFE Level 2 Certificate in Fire Science, Operations, Fire Safety”
The candidates are advised to visit the following link to gain access to guidance on the examinations and additional course materials
http://www.ife.org.uk/IFE-Qualifications-with-Syllabus-Links
Further information
If you require any further information, please contact us
www.frconline.co.uk
Tel 01832 710770
Contents
Assessment
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Contents
Page Section 1: Fire Engineering Science
Module 1 Basic mathematics 7
Module 2 Fractions 10
Module 3 Percentages 18
Module 4 Carrying out calculations 21
Module 5 Determining areas 28
Module 6 Capacity of hose and pipelines 51
Module 7 Transposition of formula 56
Module 8 Angles 71
Module 9 Physical properties of matter 92
Module 10 Mechanics 100
Module 11 Heat 1 111
Module 12 Heat 2 113
Module 13 Capacity of hose 119
Module 14 Expansion of metal 128
Module 15 Chemistry 129
Module 16 Fire growth, flashover 130
Module 17 Dust explosions and fixed installations 131
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Contents
Page
Module 18 Heat of reaction and calorific value 132
Module 19 Electricity 1 133
Module 20 Electricity 2 141
Module 21 Static electricity 144
Module 22 Conductors and insulators 145
Module 23 Hydraulics 1 146
Module 24 Hydraulics 2 150
Module 25 Hydraulics 3 159
Module 26 Suction and water power 163
Module 27 Gauges 167
Module 28 Water hammer 168
Module 29 End of unit test 169
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The IFE Level 2 Certificate in Fire Science, Operations and Safety has been developed by the Institution of Fire Engineers (IFE), representatives of Fire and Rescue Services and other fire professionals. The content and structure of the qualification has been established to reflect best professional practice.
Aims of the Qualification
The IFE Level 2 Certificate in Fire Science, Operations and Fire Safety has been designed to enable individuals to demonstrate a wide range of critical knowledge and understanding relevant to the role of firefighter. Success in the qualification will enable individuals to demonstrate that they can apply their knowledge and skills to provide solutions to a range of fire and rescue activities
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Module 1
This module will cover the following areas;
• Basic mathematics • Addition • Subtraction • Multiplication • Division
Exercise 1
Determine 308 + 121?
Exercise 2
Determine 554 + 338?
Exercise 3
Determine 912 + 463?
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Exercise 4
Determine 672 + 237?
Exercise 5
Determine 261 + 92?
Exercise 6
Determine 3298 - 149?
Exercise 7
Determine 5656 - 3472?
Exercise 8
Determine 1256 - 878?
Exercise 9
Determine 12234 - 3521?
Exercise 10
Determine 1109 - 657?
Exercise 11
Determine 111 x 32?
Exercise 12
Determine 654 x 41?
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Exercise 13
Determine 269 x 28?
Exercise 14
Determine 234 x 23?
Exercise 15
Determine 363 x 18?
Exercise 16
Determine 497 / 7?
Exercise 17
Determine 504 / 12?
Exercise 18
Determine 441 /21?
Exercise 19
Determine 2646 / 18?
Exercise 20
Determine 1305 /9?
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Module 2
This module will cover the following areas;
• Carrying out calculations • Exercises
Exercise 21
Determine the following?
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Exercise 22
Determine the following?
Exercise 23
Determine the following?
Exercise 24
Determine the following?
Exercise 25
Determine the following?
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Exercise 26
Determine the following?
Exercise 27
Determine the following?
Exercise 28
Determine the following?
Exercise 29
Determine the following?
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Exercise 30
Determine the following?
Exercise 31
Determine the following?
Exercise 32
Determine the following?
Exercise 33
Determine the following?
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Exercise 34
Determine the following?
Exercise 35
Determine the following?
Exercise 36
Determine the following?
Exercise 37
Determine the following?
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Exercise 38
Determine the following?
Exercise 39
Determine the following?
Exercise 40
Determine the following?
Exercise 41
Determine 12.1212 + 30.4?
Exercise 42
Determine 9123.2 + 345.678?
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Exercise 43
Determine 10.1 + 101.1234
Exercise 44
Determine 87.105 + 105.7?
Exercise 45
Determine 9.102 + 1203.2?
Exercise 46
Determine 99.99 – 8.7?
Exercise 47
Determine 103.987 – 2.34?
Exercise 48
Determine 999.999 – 234.3?
Exercise 49
Determine 21.01 – 3.6?
Exercise 50
Determine 208.345 – 101.6?
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Exercise 51
Determine 8.5 x 21.3?
Exercise 52
Determine 10.1 x 9.11?
Exercise 53
Determine 20 x 21.3?
Exercise 54
Determine 105 x 2.03?
Exercise 55
Determine 8.1 x 26.1?
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Module 3
This module will cover the following areas;
• Percentages
Exercise
Compare sales between 2016 and 2017
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Exercise 56
Determine the ratio of blue marbles to the other marbles and convert it to a percentage?
Exercise 57
Determine the ratio of purple stones to the other stones and convert it to a percentage?
Exercise 58
There are 5 broken eggs and 3 unbroken eggs determine the ratio of broken eggs to unbroken ones and convert it to a percentage?
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Exercise 59
Determine the ratio of green bottles to the other bottles and convert it o?
Exercise 60
Determine the ratio of blue bears to the other bears and convert it to a percentage?
Exercise 61
There are 17 safety pins and 2 are light blue. Determine the ratio of light blue safety pins and convert it to a ratio?
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Exercise 62
There are 37 corks and 2 are purple. Determine the ratio of purple corks and convert it to a percentage?
Exercise 63
There are 8 green tennis balls and 3 pink tennis balls. What is the ratio of green to pink and convert it to a percentage?
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Exercise 64
There is 1 orange pea and 6 green peas, what is the ratio of orange to green and convert it to a percentage?
Exercise 65
There are 8 red peppers and 9 orange peppers, determine the ratio of red to orange and convert it to a percentage?
Exercise 66
I want to make a cake with the following ingredients
300g flour
150g sugar
200g butter
5 eggs
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If I only have 150g of flour, what other ingredients do I need to maintain the same proportions?
Exercise 67
I want to make a cake with the following ingredients
400g flour
100g sugar
180g butter
4 eggs
If I only have 50g of sugar, what other ingredients do I need to maintain the same proportions?
Exercise 68
I want to make some cement and you need the following
1-part cement
2-part sand
3 parts gravel
How much gravel do I need to make cement if I have 1kg of sand?
Exercise 69
You buy some fertilizer and it states that the proportion to use is 10g per 12 litres of soil. How much fertilizer should you use with 20 litres of soil?
Exercise 70
The proportion of butter in a croissant is 75g of butter to 125g of flour. To maintain the proportion how much flour do you need to 100g of butter?
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Module 4
This module will cover the following areas;
• Carrying out calculations • Exercises
.
Exercise 1
Determine the following
2362.185.345.1717
Exercise 2
Determine the following
2
38
28
466
2
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Exercise 3
Determine the following
2
2
5.2486
Exercise 4
Determine the following
15
37
5
45
3
18
Exercise 5
Determine the following
8
15
4
16
12
35
6
18
6
12
Exercise 6
Determine the following
32 5.24
Exercise 7
Determine the following
223
83
6
4
1
Exercise 8
Express this in the form of 10-2
430000000003.0
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Exercise 9
Express this in the form of 10-2
3569000000
Exercise 10
Determine the following
24 103.61055.4
Exercise 11
Determine the following
33 103.21022.1
Exercise 12
Determine the following
23 104.31044.8
Exercise 13
Determine the following
42 1035.2103.4
Exercise 14
Determine the following
23 103.2/104.5
Exercise 15
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Determine the following
24 102.2/103.12
Exercise 16
Determine the following
53 101.8101.8
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Module 5
This module will cover the following areas;
• Determining areas • Determining volumes
Exercise 17
Determine the area of the following?
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Exercise 18
Determine the area of the following?
Exercise 19
Determine the area of the following?
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Exercise 20
Determine the area of the following?
Exercise 21
Determine the area of the following?
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Exercise 22
Determine the area of the following?
Exercise 23
Determine the area of the following?
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Exercise 24
Determine the area of the following?
Exercise 25
Determine the area of the following?
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Exercise 26
Determine the area of the following?
Exercise 27
Determine the area of the following?
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Exercise 28
Determine the area of the following?
Exercise 29
Determine the area of the following?
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Exercise 30
Determine the area of the following?
Exercise 31
Determine the area of the following?
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Exercise 32
Determine the area of the following?
Exercise 33
Determine the area of the following?
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Exercise 34
Determine the area of the following?
Exercise 35
Determine the area of the following?
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Exercise 36
Determine the area of the following?
Exercise 37
Determine the area of the following?
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Exercise 38
Determine the area of the following?
Exercise 39
Determine the area of the following?
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Exercise 40
Determine the area of the following?
Exercise 41
Determine the area of the following?
Exercise 42
Determine the area of the following?
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Exercise 43
Determine the area of the following?
Exercise 44
Determine the area of the following?
Exercise 45
Determine the area of the following?
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Exercise 46
Determine the area of the following?
Exercise 47
Determine the area of the following?
Exercise 48
Determine the area of the following?
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Exercise 49
Determine the area of the following?
Exercise 50
Determine the area of the following?
Exercise 51
Determine the area of the following?
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Exercise 52
Determine the area of the following?
Exercise 53
Determine the volume of the following?
Exercise 54
Determine the volume of the following?
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Exercise 55
Determine the volume of the following?
Exercise 56
Determine the volume of the following?
Exercise 57
Determine the surface area of a sphere with a radius of 5.5cm?
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Exercise 58
Determine the surface area of a sphere with a radius of 2.1cm?
Exercise 59
Determine the volume of a sphere with a radius of 1.5m?
Exercise 60
Determine the volume of a sphere with a radius of 3.6m?
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Exercise 61
Determine the volume of a sphere with a radius of 8.2m?
Exercise 62
Determine the surface area of a cube with a side of 7.1m?
Exercise 63
Determine the surface area of a cube with a side of 83m?
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Exercise 64
Determine the area of the following?
Exercise 65
Determine the volume of the following?
Exercise 66
Determine the volume of the following?
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Exercise 67
Determine the volume of the following?
Exercise 68
Determine the volume of the following?
Exercise 69
Determine the volume of the following?
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Exercise 70
Determine the area of the following irregular shape?
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Module 6
This module will cover the following areas;
• Determining capacity of hoses and pipelines • Carrying out measurements
Exercise 71
Determine the capacity of 1m of a hose with a diameter of 25mm?
Exercise 72
Determine the capacity of 2m of a firefighter hose with a diameter of 45mm?
?
Exercise 73
Determine the capacity of 25m of a firefighter hose with a diameter of 70mm?
Exercise 74
Determine the capacity of 8m of a firefighter hose with a diameter of 40mm?
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Exercise 75
Determine the capacity of 12.5m of a firefighter hose with a diameter of 12.5mm?
?
Exercise 76
Determine the capacity of 100m of a pipeline with a diameter of 150mm?
Exercise 77
Determine the capacity of 1.2km of pipeline with a diameter of 2.2m?
Exercise 78
Determine the capacity of 8km of a pipeline with a diameter of 1.25m?
Exercise 79
Determine the capacity of 3km of a pipeline with a diameter of 2.75m?
Exercise 80
Determine the capacity of 1240m of a firefighter hose with a diameter of 760mm?
Exercise 81
Determine the capacity of oil in all the pipework which is 21m with a diameter of 11mm?
Exercise 82
Describe the different ways how you would determine the thickness of a metal rod accurately?
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Exercise 83
How would you determine the density of an irregular shaped object?
Exercise 84
A student is given 3 different rocks and wants to determine the different types, can you suggest a method of how they could do this.?
Exercise 85
A helicopter travels 1500m in 8 seconds, what is its speed?
Exercise 86
A bicycle travels 800m in 4 minutes, what is its speed
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Exercise 87
A car travels 100 km and it takes 71 minutes, what is its speed?
Exercise 88
Determine the area of the following?
Exercise 89
Express this in terms of d?
d
c
b
a
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Exercise 90
Express this in terms of V2?
2
22
1
11
T
VP
T
VP
Exercise 91
Express this in terms of P1?
2
2
1
1
T
P
T
P
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Module 7
This module will cover the following areas;
• Transposition of formula • Standard form of numbers • Trigonometry • Mechanism • Levers • Mechanical advantage • Velocity ratio
Exercise 1
Transpose the following in terms of b3
321
111
bbb
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Exercise 2
Transpose the following in terms of c
cb
d
a
112
Exercise 3
Transpose the following in terms of r
2
34
3
2
B
RD
Z
L
g
w
Exercise 4
Transpose the following in terms of f
22
)(
TL
R
F
ba
Exercise 5
Determine (36 × 105) ÷ (6 × 103)
Exercise 6
Determine (100 × 108) ÷ (50 × 106)
Exercise 7
Determine (6.6 × 107) ÷ (3 × 104)
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Exercise 8
Determine (7 × 103) × (3 × 101)
Trigonometry Made Simple
Exercise 1
Determine c
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Exercise 2
Determine b
Exercise 3
Determine length BC
Exercise 4
Determine the length of BC
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Exercise 5
Determine the length of AC
Exercise 6
Determine length AC
Exercise 7
Determine length of AB
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Exercise 8
Determine angle at B
Exercise 9
Determine angle at A
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Exercise 10
Calculate the height of a building when a 11m ladder is pitched to the roof at an angle of 70 degrees?
Exercise 11
Calculate the distance from the building when a 13.5m ladder is pitched against a building at an angle of 75 degrees?
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Exercise 12
Two ladders are pitched together s shown here. One ladder is 11m and the other is 13.5m and they make an angle of 95 degrees, determine the height to point A?
Exercise 13
Two ladders 13.5m and 9m are pitched against a vertical wall so as to make angles of 50 degrees
How much higher is the head of the longer ladder?
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Exercise 14
A 30m turntable ladder is fully extended. At what angle must it be elevated to reach a window 23m from the ground. (The bottom of the ladder is 1.5m from the ground)
Exercise 15
A ladder 10m from building A reaches a window 8m up. When you turn it over through 90 degrees it reaches a window 11.5m high on the other side.
How wide is the street and how long is the ladder?
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Mechanism
Class 1 and class 2 levers both provide mechanical advantage. This means that they allow you to move a large output load with a small effort. Load and effort are forces and are measured in Newtons (N). Mechanical advantage is calculated as follows:
Mechanical advantage = load ÷ effort
Exercise 1
Determine the mechanical advantage in the following?
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Exercise 2
Determine the mechanical advantage in the following?
Exercise 3
Determine the mechanical advantage in the following?
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Exercise 4
Determine the mechanical advantage in the following?
Exercise 5
Determine the mechanical advantage in the following?
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Exercise 6
Determine the distance that the effort has to move to balance the seesaw?
Exercise 7
Determine the distance that the effort has to move to balance the seesaw?
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Exercise 8
Determine the distance that the effort has to move to balance the seesaw?
Exercise 9
Determine the distance that the effort has to move to balance the seesaw?
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Exercise 10
Determine the distance that the effort has to move to balance the seesaw?
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Module 8
This module will cover the following areas;
• Angles
Exercise 1
What sort of angle is this?
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Exercise 2
What sort of angle is this?
Exercise 3
What sort of angle is this?
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Exercise 4
What sort of angle is this?
Exercise 5
What sort of angle is this?
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Exercise 6
What sort of angle is this?
Exercise 7
What sort of angle is this?
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Exercise 8
What sort of angle is this?
Exercise 9
What sort of angle is this?
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Exercise 10
What sort of angle is this?
The next section is determining perimeters of shapes
Exercise 1
Determine the perimeter of this shape?
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Exercise 2
Determine the perimeter of this shape?
Exercise 3
Determine the perimeter of this shape?
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Exercise 4
Determine the perimeter of this shape?
Exercise 5
Determine the perimeter of this shape?
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Exercise 6
Determine the perimeter of this shape?
Exercise 7
Determine the perimeter of this shape?
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Exercise 8
Determine the perimeter of this shape?
Exercise 9
Determine the perimeter of this shape?
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Exercise 10
Determine the perimeter of this shape?
Exercise 11
Determine the perimeter of this shape?
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Exercise 12
Determine the perimeter of this shape?
Exercise 13
Determine the perimeter of this shape?
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Exercise 14
Determine the perimeter of this shape?
Exercise 15
Determine the perimeter of this shape?
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Exercise 16
Determine the perimeter of this shape?
Exercise 17
Determine the perimeter of this shape?
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Exercise 18
Determine the perimeter of this shape?
Exercise 19
Determine the perimeter of this shape?
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Exercise 20
Determine the perimeter of this shape?
Exercise 21
Determine the capacity of the following pool?
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Exercise 22
Determine the capacity of the following pool?
Exercise 23
Determine the capacity of the following pool?
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Exercise 24
Determine the capacity of the following pool?
Exercise 25
Determine the capacity of the following pool?
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Exercise 26
Determine the capacity of the following tank (lts)?
Exercise 27
Determine the capacity of the following tank (lts)?
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Exercise 28
Determine the capacity of the following tank (lts)?
Exercise 29
Determine the capacity of the following tank (lts)?
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Exercise 30
Determine the capacity of the following tank (lts)?
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Module 9
This module will cover the following areas;
• Physical properties of matter • Weight • Gravity
Exercise 1
A cow on earth of mass 120kg has a weight of 1200n. What would its mass and weight be on the moon with 1/6th of the gravity?
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Exercise 2
An elephant on earth of mass 650kg has a weight of 6500n. What would its mass and weight be on the moon with 1/6th of the gravity?
Exercise 3
A vehicle on earth has a mass of 2500kg and a weight of 25,000N. What would its weight be on the Moon with 1/6th of the gravity?
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Exercise 4
A puppy on earth has a mass of 1kg and a weight of 10N. What would its weight be on Mars with 1/133rd of the gravity?
Exercise 5
An alligator on earth has a mass of 120kg and a weight of 1200N. What would its weight be on Mars with 1/133rd of the gravity?
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Exercise 6
What is the density of these bullets?
Mass = 20g
Volume = 3cm3
Exercise 7
What is the density of this sponge?
Mass = 10g
Volume = 0.01m3
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Exercise 8
What is the density of this wood?
Mass = 0.23kg
Volume = 0.1m3
Exercise 9
What is the density of this rocking horse?
Mass =12kg
Volume = 0.25m3
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Exercise 10
What is the density of this bale of straw?
Mass = 40kg
Volume = 2.3m3
Exercise 11
Determine the densities of a cube block of steel has a mass of 35g. The cube is 1.75cm long, what is its density?
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Exercise12
Determine the density of a liquid with the following information
Mass = 1.25 kg
Volume = 0.45m3
Exercise 13
Determine the density of a melon with the following information
Mass = 1.2 kg
Volume = 0.01m3
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Exercise 14
Determine the density of a sausage with the following information
Mass = 100g
Volume = 8cm3
Exercise 15
Determine the density of a cannon ball with the following information
Mass = 2kg
Volume = 0.03m3
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Module 10
This module will cover the following areas;
• Mechanics • Energy • Kinetic energy • Elastic potential energy • Gravitational energy • Mechanical energy • Sound energy • Force • Work • Power
Exercise 1
What is the kinetic energy of a 1100 kg elephant travelling at 6 m/s?
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Exercise 2
What is the kinetic energy of a rugby player with a mass of 100 kg travelling at 10 m/s?
Exercise 3
What is the kinetic energy of a dog with a mass of 20 kg travelling at 13 m/s?
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Exercise 4
What is the kinetic energy of a skier with a mass of 70 kg travelling down a slope at 22 m/s?
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Exercise 5
What is the kinetic energy of a husky dog with a mass of 40 kg travelling at 7 m/s?
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Exercise 6
What potential energy does a lady with a mass of 50kg and it is up in a fair ride 30m from the ground?
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Exercise 7
What potential energy does a child with a mass of 30kg and it is up in a fair ride 22m from the ground?
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Exercise 8
What potential energy does a kite with a mass of 12kg and it is up in the air 120m from the ground?
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Exercise 9
What potential energy does a parachutist with a mass of 90kg and it is up in the air 1245m from the ground?
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Exercise 10
What potential energy does a snowboarder with a mass of 84kg up a mountain 1300m from the ground?
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Exercise 11
A force of 10N is applied to a cart to move it 2m along the floor. What is the work done on the cart?
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Exercise 12
What is the work done when a weightlifter lifts 100kg from the floor above their head to a height of 2.2m?
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Exercise 13
What is the work done when a crane lifts 1200kg from the floor to a height of 51m?
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Exercise 14
What is the work done when a firefighter lifts a hose with a mass of 79kg from the floor to a height of 18m?
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Exercise 15
What is the work done when a person with a mass of 81kg walks up a flight of stairs 3m high?
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Exercise 16
What is the power required to lift an elephant with a mass of 350kg, 75m high in 2 minutes?
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Exercise 17
What would the power be if you wanted to achieve the same lift in 3.5 minutes?
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Exercise 18
What is the power required to lift a bucket of water with a mass of 3.4kg to the top of a ladder 11.5m high in 18 seconds?
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Exercise 19
What is the power required to lift a pint of lager with a mass of 1.2kg from the table in the air 1.1m in a celebration in 0.9 seconds?
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Exercise 20
What is the power required to pull a vehicle weighing 200kg along a road 80m long in 2 minutes 10 seconds?
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Module 11
This module will cover the following areas;
• Temperature • Limitations • Air or gas thermometer • Thermocouples • Electrical resistance • Converting temperatures
Exercise 1
Convert 154F into centigrade?
Exercise 2
Convert 154C into Fahrenheit?
Exercise 3
Convert 154F into Kelvin?
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Exercise 4
Convert 154C into Kelvin?
Exercise 5
Convert 345F into Centigrade?
Exercise 6
Convert 356F into Kelvin?
Exercise 7
Convert 978F into Kelvin?
Exercise 8
Convert 300F into Centigrade?
Exercise 9
Convert 1111F into Kelvin?
Exercise 10
Convert 453K into Fahrenheit?
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Module 12
Exercise 11
Determine the heat which is released when a 3.4kg brick which has a temperature of 300C is allowed to cool to ambient in a room?
Ambient temp = 15C
Specific heat capacity of brick = (855 kj/kg/K)
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Exercise 12
How much heat energy is required to make a cup of boiling hot coffee?
Cup capacity = 0.25 litres Water temperature = 15C
Density of water = 1000kg.m3 SHC of water = 4.187 kj.kg/K
Exercise 13
How much heat energy is required to heat a pan of liquid from 34C to its boiling point at 97C?
Pan capacity = 2.25 litres Density of liquid = 900kg.m3
SHC of liquid = 2.2 kj.kg/K
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Exercise 14
How much heat energy is required to melt an ice cube with a volume of 0.00001m3 at 0C to water at 0C?
Density of water = 1000kg.m3 Latent heat of melting = 334 kj/kg
Exercise 15
How much heat energy is required to melt an iceberg with a volume of 13450m3 at -30C to water at 0C?
Density of water = 1000kg.m3 Latent heat of melting = 334 kj/kg
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Exercise 16
Determine how much a metal bridge will expand on a freezing cold day when the sun comes out and heats it to 30C?
Temperature of = -10C Co-efficient of linear expansion = 0.000032 C
Original length of bridge = 50m
Exercise 17
At 25C a sphere has a diameter of 1m. It is involved in a fire and heated to 100C. What is the final volume of the sphere?
Ambient temperature of steel = 15C Co-efficient of linear expansion = 0.0000150C
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Exercise 18
Determine the final length of a beam that is heated in a fire to 1000C?
Ambient temperature of beam = 15C Co-efficient of linear expansion = 0.00002 C
Original length of beam = 20m
Exercise 19
Determine how much a metal bridge will shrink when subject to freezing cold conditions of -30C?
Temperature = 25C Co-efficient of linear expansion = 0.0001 C
Original length of bridge = 30m
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Exercise 20
At 30C a sphere has a diameter of 2m. It is involved in a fire and heated to 1000C. What is the final volume of the sphere?
Ambient temperature of steel = 15C Co-efficient of linear expansion = 0.000010C
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Module 13
This module will cover the following areas;
• Capacity of tanks
Exercise 21
A tank containing 1450 litres of a liquid is heated in a fire from ambient 20C to 1000C what will be its new volume?
Cubical expansion rate of liquid = 0.000009
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Exercise 22
A tanker containing 20,000 litres of a liquid is heated in a fire from ambient 20C to 60C what will be its new volume?
Cubical expansion rate of liquid = 0.00001
Exercise 23
An oil drum containing 90 litres of a liquid is heated in a fire from ambient 20C to 800C what will be its new volume?
Cubical expansion rate of liquid = 0.0000125
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Exercise 24
A glass of a liquid containing 0.45 litres of a liquid is heated from ambient 20C to 80C what will be its new volume?
Cubical expansion rate of liquid = 0.00004
Exercise 25
A tanker with a liquid containing 2300 litres of a liquid is heated from 0C to 30C what will be its new volume?
Cubical expansion rate of liquid = 0.000023
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Exercise 26
The density of a liquid is 1000kg.m3 at 0C and it is 900kg.m3 at 100C.
Determine the coefficient of cubical expansion of the liquid?
Exercise 27
A bulk fuel storage cylinder 5m in diameter and 8.5m high made of steel is 90% filled with aircraft fuel at a temperature of 18C. If the storage cylinder is involved in a fire and heated to 415C, how much fuel will be forced out?
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Exercise 28
A cylinder occupies 4 litres when its temperature is 20C. What will be its volume when heated to 600c if the pressure remains constant?
Exercise 29
A piston occupies 8 litres of a gas when its temperature is 20c, what will be its temperature if the volume is increased to 16 litres if the pressure remains constant?
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Exercise 30
A cylinder occupies 44 litres when its temperature is 0C, what will be its volume when heated to 560c if the pressure remains constant?
Exercise 31
A cylinder occupies 23 litres when its pressurised to 7 Bar, what will be the pressure if the volume is increased to 33 litres?
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Exercise 32
A cylinder occupies 222 litres when its pressurised to 22 Bar, what will be the pressure if the volume is increased to 333 litres?
Exercise 33
A cylinder occupies 9 litres when its pressurised to 200 Bar, what will be the pressure if the volume is increased to 11 litres?
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Exercise 34
A cylinder charged to 56 Bar has a volume of 1m3 at 25C. It is involved in a fire and reaches a temperature of 550C, its volume increases to 1.001m3. What would be the pressure inside the cylinder?
Exercise 35
A vessel at -55C contains gas at a pressure of 15 Bar. We can assume that the volume of the vessel will remain constant.
If the bursting pressure = 60 Bar, at what temperature will the vessel fail?
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Exercise 36
An acetylene cylinder at a pressure of 10 bar is stored in a container which is involved in a fire and is heated to 500C. The vessel is protected by a fusible plug which operates at 30 bar.
Exercise 37
A nitrogen cylinder has a volume of 0.1m3. It contains 7m3 of nitrogen when released at normal temperature and pressure 1 bar 15C.
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Module 14
The aim of the module is that you will be able to:
• Expansion in metal structures
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Module 15
This module will cover the topic of chemistry. On completion of this module you will be able to:
• Define and use chemical terms
• Describe atoms and molecules
• Understand the use of chemical symbols
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Module 16
This module will cover the topic of chemistry. On completion of this module you will be able to:
• Fire growth
• Flashover
• Backdraft
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Module 17
This module will cover the topic of chemistry. On completion of this module you will understand:
• Dust explosions
• BLEVE
• Explosion protection
• VACTEC
• Foam installations
• FM200
• Ansul systems
• Dry powder systems
• DSPA
• Blanketing
• Beating
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Module 18
This module will look at the following topics:
• Heat of reaction and calorific value • Enthalpy changes
• Combustion
• Bomb calorimeter
• Laminar and turbulent flow
• Reynolds number
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Module 19
This module will cover electricity. At the end of this module you will be able to
• Define, understand and use basic electrical symbols and terms
• Describe and carry out calculations using Ohm’s Law
• Explain the purpose and significance of conductors and insulators
• Explain the reasons for providing earth connections and other protective devices to electrical circuits
Exercise 1
What current will be flowing in the circuit?
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Exercise 2
What is the voltage in this circuit?
Exercise 3
What current will be flowing in this circuit?
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Exercise 4
What is the voltage in this circuit?
Exercise 5
What current will be flowing in this circuit?
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Exercise 6
What power is dissipated in a circuit with a current of 6 amps flowing in a resistance of 1 ohms?
Exercise 7
What power is dissipated in a circuit with a current of 22 amps flowing in a resistance of 0.25 ohms?
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Exercise 8
What power is dissipated in a circuit with a current of 15 amps flowing in a resistance of 1.34 ohms?
Exercise 9
What power is dissipated in a circuit with a current of 2.4 amps flowing in a resistance of 0.2 ohms?
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Exercise 10
What power is dissipated in a circuit with a current of 30 amps flowing in a resistance of 3 ohms?
Exercise 11
Determine the total resistance in this circuit assuming the resistance in the wire is 0.3 ohm
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Exercise 12
Determine the total resistance in this circuit assuming the resistance in the wire is 01.1ohm
Exercise 13
Determine the total resistance in this circuit assuming the resistance in the wire is 1.3ohm
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Exercise 14
Determine the total resistance in this circuit assuming the resistance in the wire is 0.3ohm
Exercise 15
Determine the total resistance in this circuit assuming the resistance in the wire is 0.1ohm
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Module 20
Exercise 16
Determine the effective resistance of this circuit?
Exercise 17
Determine the effective resistance of this circuit?
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Exercise 18
Determine the effective resistance of this circuit?
Exercise 19
Determine the effective resistance of this circuit?
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Exercise 20
Determine the effective resistance of this circuit?
Exercise 21
What power is required to produce a current of 8 amps in a circuit with a potential difference of 4V?
Exercise 22
What power is required to produce a current of 12.5 amps in a circuit with a potential difference of 6V?
Exercise 23
What power is required to produce a current of 12 amps in a circuit with a potential difference of 5.2V?
Exercise 24
What power is required to produce a current of 10 amps in a circuit with a potential difference of 2.4V?
Exercise 25
What power is required to produce a current of 19 amps in a circuit with a potential difference of 2.4V?
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Module 21
This module will look at:
• Static electricity
• What causes static electricity
• Controlling static
• Earthing
• Grounding
• Case study
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Module 22
This module will look at:
• Conductors
• Insulators
• Cables laid in hot places
• Overloading circuits
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Module 23
The aim of the module is that you will be able to:
• Properties of water
• Specific heat capacity
• Latent heat of vapourisation
• Density
Exercise 1
What is the density of an iron ball with a volume of 0.034m3 and a mass of 1.21kg?
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Exercise 2
What is the density of a melon with a volume of 0.025m3 and a mass of 2kg?
Exercise 3
What is the density of a baseball with a volume of 0.001m3 and a mass of 0.2kg?
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Exercise 4
What is the density of an anchor with a volume of 0.2m3 and a mass of 24kg?
Exercise 5
What is the density of an elephant with a volume of 6m3 and a mass of 2000kg?
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Exercise 6
Convert 1.12 bar into Pascal’s and atmospheres?
Exercise 7
Convert 65,000 Pascal’s into bar and atmosphere?
Exercise 8
Convert 1,200,000 Pascal’s into bar and atmosphere?
Exercise 9
Convert 400,000 Pascal’s into bar and atmosphere?
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Module 24
The aim of the module is that you will be able to:
• Pressure and head of water
• Quantity of water in pipelines and hoses
Exercise 10
A static tank has a water level 75m above a gauge. What pressure would be showing on the gauge?
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Exercise 11
A dam has a water level 109m above a gauge. What pressure would be showing on the gauge?
Exercise 12
A water tank for a sprinkler system is located in a roof space above the sprinkler head 8.4m. What pressure would be available at the sprinkler head?
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Exercise 13
A pump pressure of 4.6 bar is required to operate a branch which is located at ground level. If the branch is raised to a height of 13m above ground what must be the pump pressure to have the same output?
Exercise 14
A pump pressure of 6 bar is required to operate a branch which is located at ground level. If the branch is lowered to a height of 10m below ground what must be the pump pressure to have the same output?
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Exercise 15
Determine the quantity of water flowing in a pipe with a diameter of 1m3, when the water is flowing at 5.6m.sec-1?
Exercise 16
Determine the quantity of water flowing in a pipe with a diameter of 0.32m3, when the water is flowing at 8m.sec-1?
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Exercise 17
Determine the quantity of water flowing in a pipe with a diameter of 0.656m3, when the water is flowing at 6.6m.sec-1?
Exercise 18
Determine the quantity of water flowing in a firefighters hose with a diameter of 70mm, when the water is flowing at 6m.sec-1?
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Exercise 19
Determine the quantity of water flowing in a firefighters hose with a diameter of 45mm, when the water is flowing at 9m.sec-1?
Exercise 20
Determine the velocity of 120,000lts.min of water flowing in a pipe with an area of 1.3m2?
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Exercise 21
Determine the velocity of 76,000lts.min of water flowing in a pipe with an area of 0.7m2?
Exercise 22
Determine the velocity of 50,000lts.min of water flowing in a pipe with an area of 0.78m2?
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Exercise 23
Determine the velocity of 300lts.min of water flowing in a pipe with an area of 0.0015m2?
Exercise 24
Determine the velocity of 250lts.min of water flowing in a pipe with an area of 0.001m2?
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Exercise 25
Determine the output from a 25mm nozzle operating at 4 Bar?
2.3153
2 2L
Exercise 26
Determine the output from a 12.5mm nozzle operating at 6 Bar?
2.3153
2 2L
Exercise 27
Determine the output from a 20mm nozzle operating at 4 Bar?
2.3153
2 2L
Exercise 28
Determine the output from a 15mm nozzle operating at 1.5 Bar?
2.3153
2 2L
Exercise 29
Determine the output from a 25mm nozzle operating at 6 Bar?
2.3153
2 2L
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Module 25
The aim of the module is that you will be able to:
• Exercises
Exercise 30
What is the impact of changing a 12.5mm nozzle with a 25mm nozzle when operating at 6 Bar?
2.3153
2 2L
Exercise 31
What is the impact of changing a 10mm nozzle with a 20mm nozzle when operating at 7 Bar?
2.3153
2 2L
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Exercise 32
What is the impact of using a 20mm nozzle when operating at 3 Bar and increasing it to 6 bar?
2.3153
2 2L
Exercise 33
What is the impact of using a 15mm nozzle when operating at 2 Bar and increasing it to 4 bar?
2.3153
2 2L
Exercise 34
Determine the jet reaction from a 15mm nozzle operating at 4.5 Bar?
10
2PaR
Exercise 35
Determine the jet reaction from a 25mm nozzle operating at 5 Bar?
10
2PaR
Exercise 36
Determine the jet reaction from a 20mm nozzle operating at 6 Bar?
10
2PaR
Exercise 37
Determine the jet reaction from a 15mm nozzle operating at 8 Bar?
10
2PaR
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Exercise 38
Determine the jet reaction from a 20mm nozzle operating at 7.5 Bar?
10
2PaR
Exercise 39
Determine the jet reaction from a 20mm nozzle operating at 6.0 Bar?
10
2PaR
Exercise 40
Determine the jet reaction from a 12.5mm nozzle operating at 3.0 Bar?
10
2PaR
Exercise 41
Determine the jet reaction from a 15mm nozzle operating at 4.5 Bar?
10
2PaR
Exercise 42
Determine the jet reaction from a 25mm nozzle operating at 6.5 Bar?
10
2PaR
Exercise 43
Determine the jet reaction from a 15mm nozzle operating at 4.3 Bar?
10
2PaR
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Exercise 44
Determine the jet reaction from a 20mm nozzle operating at 7.5 Bar?
10
2PaR
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Module 26
This module will cover the topic of chemistry. On completion of this module you will be able to:
• Suction
• Effects of temperature on suction lift
• Cavitation
• Factors to overcome when pumping from open water
• Brake power
• Water power
Exercise 1
Determine the water power of a pump which is delivering 2600 litres at 3.5 Bar?
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Exercise 2
Determine the water power of a pump which is delivering 3100 litres at 6 Bar?
..
Exercise 3
Determine the water power of a pump which is delivering 4000 litres at 2 Bar?
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Exercise 4
Determine the water power of a pump which is delivering 1300 litres at 6 Bar?
..
Exercise 25
Determine the water power of a pump which is delivering 2500 litres at 3.5 Bar?
..
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Exercise 6
Determine the efficiency of a pump with an input (Brake power) of 49kW. It is pumping 4100 litres at 6.3 Bar?
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Exercise 7
A pump with a Brake power of 36kW and an efficiency of 75% discharges 2750 litre/minute at a pressure which is 1.2 bar higher than the pressure of the 1800 litre per minute discharged by a second pump having an efficiency of 68%. What is the brake power of the second pump?
..
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Module 27
This module will cover the following:
• Gauges
• Pump discharge pressure
• Water gauges
• Flow gauges
• Flow meters
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Module 28
This module will cover the topic of chemistry. On completion of this module you will be able to:
• Water hammer
• Closing a branch too quickly
• Closing a hydrant
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Module 29
End of module test
1. What is difference between mass and weight?
2. What is vapour density?
3. What is relative density of a vapour?
4. What are the 4 states of matter?
5. Define melting point of a solid?
6. What is evaporation?
7. What is kinetic energy and what is the formula to determine it?
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8. Define work?
9. Define power?
10. What is centripetal force?
11. What is a manometer,
12. What is the difference between heat and temperature?
13. What is a thermocouple?
14. What is a thermistor?
15.What are the 3 ways of measuring temperature that is used today?
16. What is the kelvin scale?
17. What is the definition of a joule?
18. What is the definition of specific heat capacity?
19. What are the 5 changes of state?
20. What is the latent heat of vapourisation?
21. What is the latent heat of fusion?
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22. What are the 3 types of expansion?
23. Define Charles gas law and what is the formula?
24. Define boyles law and give the formula?
25. Define critical temperature
.
26. What is the filling ratio?
27. There are a number of basic rules governing the principle characteristic of pressure in liquids, what are they?
28. There are a few rules regarding frictional loss which you should be aware of, what are they?
29. When working from open water, a lot of energy is required to raise the water to the level of the pump. The pump has to overcome a number of factors, what are they?
30. What is jet reaction?
31. What is Archimedes principle?
.
32. Define an atom?
33. Define a molecule?
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34. Define an element?
35. Define a radical?
36. What are atoms made up of?
37. What is the atomic number?
38. Define flashpoint?
39. Define auto-ignition temperature?
40. Define and explain LEL?
41. Define and explain UEL?
42. What is a flashover?
43. What are the internal signs of a backdraught?
44. What are the pre-conditions for a dust explosion?
45. What is difference between primary explosion and secondary explosion?
46. What are the typical expansion rates for LX, MX and HX foams?
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47. What type of foam is most suitable for polar solvents?
48. What is the name for a material that have exactly zero resistance and infinite conductance?
49. What is the formula for ohms law?
IRV
50. How would you determine the total resistance of a number of resistors in series?
51. What is the formula to determine the resistance of a number of resisters in parallel?
321
1111
RRRR
52. What is a miniature circuit breaker?
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