Metrology & Instrumentation Course code: 3341905 GTU/NITTTR/Bhopal/13-14 Gujarat State 1 GUJARAT TECHNOLOGICAL UNIVERSITY, AHMEDABAD, GUJARAT COURSE CURRICULUM COURSE TITLE: METROLOGY & INSTRUMENTATION (Code: 3341905) Diploma Programme in which this course is offered Semester in which offered Mechanical Engineering, Mechatronics Engineering 4 th Semester 1. RATIONALE The students of Mechanical Engineering branch are basically concerned with manufacturing various machine components in shops as per given drawing. Today the industrial processing and manufacturing techniques have become complex and complicated and their control is very much difficult by human judgment only. Therefore, the exact and precise measurements are the basic need of the industries. This course of Metrology & Instrumentation, therefore, provides required knowledge and skills and creates self confidence in students so that they can work on shop floor independently for accurate and precise measurements and manufacturing. 2. COMPETENCY The course content should be taught and implemented with the aim to develop different types of skills so that students are able to acquire following competency: Select and use appropriate analog and digital measuring and gauging instruments for a given manufacturing situation 3. COURSE OUTCOMEs (COs) The theory should be taught and practical should be carried out in such a manner that students are able to acquire different learning out comes in cognitive, psychomotor and affective domain to demonstrate following course outcomes. i. Measure the given mechanical elements and assemblies using linear and angular analog /digital measuring instruments. ii. Check geometrical accuracy of given application. iii. Explain surface roughness checking instruments. iv. Measure and derive important dimensions of various thread forms and gears. v. Select and use non destructive testing methods. vi. Check the dimensions using the gauges. vii. Select and measure variables using appropriate sensors and transducers. 4. TEACHING AND EXAMINATION SCHEME: Teaching Scheme (In Hours) Total Credits (L+T+P) Examination Scheme Theory Marks Practical Marks Total Marks L T P C ESE PA ESE PA 200 4 0 4 8 70 30 40 60 Legends: L -Lecture; T -Tutorial/Teacher Guided Student Activity; P -Practical; C - Credit; ESE-End Semester Examination; PA - Progressive Assessment.
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GUJARAT TECHNOLOGICAL UNIVERSITY, AHMEDABAD, … · Metrology & Instrumentation Course code: 3341905 GTU/NITTTR/Bhopal/13-14 Gujarat State 7 certain outcomes in affective domain which
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Laxmi Institute of Technology , Sarigam Approved by AICTE, New Delhi; Affiliated to Gujarat Technological University, Ahmedabad
Academic Year : 2018-2019
ASSIGNMENT CLASS: DE MECHANICAL 4th SEM
SUBJECT: METROLOGY & INSTRUMENTATION (3351905)
Unit – I Linear and angular measurement
1. Classify linear measuring instrument. 2. State application of slip gauge. 3. State direct and indirect angular measuring instrument. 4. State application of spirit level. 5. Write short note on Wringing process of slip gauges. 6. Explain the working principle of auto collimator. 7. Draw neat sketch of optical clinometers. 8. Draw neat sketch of vernier height gauge. Explain working principle of vernier Height
gauge. 9. Explain the working principle of sine bar with neat sketch. 10. Find the least of the vernier with minimum of 0.5mm on main scale and
50 vernier divisions. 11. Define quality control. 12. Differentiate accuracy and precision 13. What is least count? How to find the least count of height gauge? 14. Write the uses of surface plate. 15. Draw the labeled diagram of vernier calliper. shows 36.56 mm & 37.24 mm on it. 16. Draw the diagram of slip gauge indicating 50mm and active faces Write the uses of
slip gauges. 17. How to find the least count of bevel protactor? 18. Draw the labeled of bevel protactor. Shows 12 º15’ & 62º35’ on it. 19. Explain the importance of ‘V’ mark on angle gauge. 20. Give minimum three use of angle gauge. 21. With the help of a neat sketch, explain the working principle of outside micrometer
and show 26.65 mm & 25.15 mm on it. 22. Write a short note on Optical Bevel Protractor and find appropriate angle gauges to
produce 23º49’24’’. 23. Write the functions of Telescopic gauge? 24. Differentiate the Centralized & Decentralized inspection 25. How to find the least count of micrometer? 26. Explain the Calibration of instrumentations. 27. Define: (1) Metrology (2) Inspection 28. State name of direct measuring instruments. 29. State why calibration is necessary? 30. Explain the functions of inspection. 31. Explain the need of end standard. 32. Select most appropriate slip gauges from M-112/1 set for following dimensions. (1)
34.4785 (2) 72.985 33. Explain working and application of angle dekkar. 34. Write short note on calibration of vernier caliper.
Laxmi Institute of Technology , Sarigam Approved by AICTE, New Delhi; Affiliated to Gujarat Technological University, Ahmedabad
Academic Year : 2018-2019
ASSIGNMENT CLASS: DE MECHANICAL 4th SEM
SUBJECT: METROLOGY & INSTRUMENTATION (3351905)
Unit – II Measurement of geometrical tolerances
1. Explain the working of dial indicator with diagram. 2. Define : Straightness. 3. Define : Roundness. 4. Define : Flatness 5. Define : Squareness 6. Explain methods of measuring flatness with diagram. 7. Explain methods of measuring Straightness with diagram. 8. Explain methods of measuring Roundness with diagram. 9. Explain methods of measuring Squareness with diagram. 10. Draw symbol of i) Roundness ii) Parallelity iii) Perpendicularity
Laxmi Institute of Technology , Sarigam Approved by AICTE, New Delhi; Affiliated to Gujarat Technological University, Ahmedabad
Academic Year : 2018-2019
ASSIGNMENT CLASS: DE MECHANICAL 4th SEM
SUBJECT: METROLOGY & INSTRUMENTATION (3351905)
Unit – III Measurement of surface roughness
1. Differentiate between roughness and waviness. 2. Define the following terms:
1. CLA value 2. RMS value 3. Mean line 4. Rz Number 3. What is the use of Talysurf Tester? 4. Draw the symbol of surface roughness with complete detail 5. Describe the working principle of “Tombilson surface meter”. 6. Explain working principle of stylus instruments. 7. Describe Taylor Hobson Telysurf.
Laxmi Institute of Technology , Sarigam Approved by AICTE, New Delhi; Affiliated to Gujarat Technological University, Ahmedabad
Academic Year : 2018-2019
ASSIGNMENT CLASS: DE MECHANICAL 4th SEM
SUBJECT: METROLOGY & INSTRUMENTATION (3351905)
Unit – IV Gear measurement
1. List the types of gear. 2. Show the important elements of spur gear & helical gear with a neat sketch. 3. Draw a neat sketch of Gear tooth terminology and list its main elements of
measurement. Define ( 1)Addendum( 2) Dedendum (3)Circular pitch (4)Thickness of tooth (5)Diametral pitch ( 6)Module (7)Pitch Circle Diameter.
4. List the elements of internal Gear. 5. Name the methods for measure Gear tooth profile. 6. Name the methods to measure gear tooth thickness. 7. Explain the measurement gear tooth thickness with diagram. 8. Explain with neat sketch “Gear tooth Vernier caliper”. 9. Draw a neat sketch of Parkinson’s gear tester. Explain working principle of
Parkinson’s gear tester.
Thread measurement
10. State name of errors in screw thread. 11. Define best wire size. State its mathematical relation. 12. Draw a neat sketch of External & Internal screw thread and list its main elements of
measurement. 13. Explain the methods to measure the effective diameter of a screw thread. 14. Define the following as related to screw thread: 1)Major diameter 2)Minor diameter
3)Effective diameter 4)Pitch 5)Lead 6)Helix angle 7)Flank 15. Explain the best wire size for thread measurements. 16. Describe three wire method for measuring an effective diameter of thread.
Laxmi Institute of Technology , Sarigam Approved by AICTE, New Delhi; Affiliated to Gujarat Technological University, Ahmedabad
Academic Year : 2018-2019
ASSIGNMENT CLASS: DE MECHANICAL 4th SEM
SUBJECT: METROLOGY & INSTRUMENTATION (3351905)
Unit – V Limit gauges, Transducers and sensors
1. State name of various types of limit gauges. 2. What are limit gauges? State their advantages, disadvantages and applications. 3. Write short notes on snap Gauge
4. Explain plug gauge with the help of diagram
5. What are “GO” and “NOT GO” members of limit gauges.? Sketch a ring gauge and explain them.
6. What is comparator? Classify the Comparators. 7. Explain in brief interchangeability and selective assembly.
Transducers
8. List static characteristics of instruments. 9. Define threshold, accuracy, sensitivity, resolution. 10. Name the various types of transducers. 11. Write advantages and disadvantages of transducers.
12. Write short note on dead weight piston gauge. 13. Differentiate between active and passive transducers. 14. Explain working principle of capacitance type transducer. 15. Explain LVDT. 16. Write advantages and disadvantages of LVDT. 17. Explain piezo electrical transducers.
Laxmi Institute of Technology , Sarigam Approved by AICTE, New Delhi; Affiliated to Gujarat Technological University, Ahmedabad
Academic Year : 2018-2019
ASSIGNMENT CLASS: DE MECHANICAL 4th SEM
SUBJECT: METROLOGY & INSTRUMENTATION (3351905)
Unit – VI Non destructive testing
1. Name the NDT methods. 2. Explain dye penetration method of testing. 3. State the advantages and limitations of Non-Destructive Testing. 4. Write short note on Non destructive testing ( NDT ). 5. Explain Ultrasonic method of testing. 6. Explain the purpose of Non-Destructive Testing.
Laxmi Institute of Technology , Sarigam Approved by AICTE, New Delhi; Affiliated to Gujarat Technological University, Ahmedabad
Academic Year : 2018-2019
ASSIGNMENT CLASS: DE MECHANICAL 4th SEM
SUBJECT: METROLOGY & INSTRUMENTATION (3351905)
Unit – VII Temperature, pressure and flow measurement
1. Name temperature measuring devices.
2. Explain working principle of optical pyrometer with the help of figure. Also state the advantages of pyrometer.
3. Explain the working principle of radiation pyrometer with neat sketch. 4. Draw the circuit diagram of resistance thermometer. Explain its principle and
working. 5. State application of Thermometer. 6. Explain the operation principle & working of thermocouple. 7. Differentiate between resistance thermometer and thermocouple.
Pressure Measurement
8. Draw diagram of ‘U’ tube manometer. 9. Write short note on inclined manometer. 10. Classify the pressure measuring devices. 11. List the different transducers to measure pressure & explain any one with figure. 12. With the help of a neat sketch, explain Bellow type pressure gauge. 13. Explain the working of Bourdon tube pressure gauge. 14. Explain working principle of pressure capsule.
Flow Measurement
15. Classify the different flow measuring devices.
16. Draw diagram of pitot tube and explain it. 17. Write short note on rotameter. 18. Explain the working of bellow type flow meter. 19. List the different transducers to measure flow & explain any one with figure..
Laxmi Institute of Technology , Sarigam
Approved by AICTE, New Delhi; Affiliated to Gujarat Technological University,
Ahmadabad
Academic Year 2018-19
Centre Code : 691 Examination : Mid Exam I Semester : IV
Branch: Mechanical - E Date : 01/02/2019 Sub Code : 3341905
Sub : M & I Time : 10.30 to 11.30 Marks : 20
Q-1 Answer any three. 6
1 Differentiate accuracy and precision.
2 State direct and indirect angular measuring instrument.
3 What is least count? & show 72.86 mm outside micrometer.
4 Define: (1) Metrology (2) Inspection
5
Find appropriate angle gauges to produce 39º34’24’’& Draw diagram of it.
Q-2 (A) Write how to calibration of vernier caliper. 2
OR
(A) Methods of Wringing process of slip gauges.
(B) Explain the working principle of sine bar with neat sketch. 4
OR
(B)
Draw the labeled of bevel protactor. How to find the least count of bevel protactor.
Q-3 (A)
Draw neat sketch of vernier height gauge. Explain working principle of vernier Height gauge.
4
(B) State application of slip gauge. & Select most appropriate slip gauges from M-112/1 set for following dimensions. (1) 34.4785 (2) 72.985
4
OR
(A)
With the help of a neat sketch, explain the working principle of outside micrometer.
(B)
Differentiate the Centralized & Decentralized inspection &Explain the need of end standard.
Laxmi Institute of Technology , Sarigam
Approved by AICTE, New Delhi; Affiliated to Gujarat Technological
University, Ahmadabad
Academic Year 2018-19
Centre Code : 691 Examination : Mid Exam II Semester : 4th
Branch: Mechanical Date : 29/04/2019 Sub Code : 3341905
Sub : M&I Time : 10.30 to 11.30 Marks : 20
Q-1 Answer any Five. 5
1 Define Flatness and Draw the symbol of parallelity.
2 Define CLA and RMS value.
3
Draw the symbol of surface roughness with complete detail.
4 State name of errors in screw thread.
5 State the various types of limit gauges.
6 List the types of gear.
Q-2 (A)
Draw a neat sketch of External & Internal screw thread and list its main elements of measurement.
3
OR
(A)
Draw a neat sketch of Gear tooth terminology and list its main elements of measurement.
(B)
Describe the working principle of “Tombilson surface meter” with figure.
4
OR
(B)
Name the methods to measure gear tooth thickness and Explain with neat sketch “Gear tooth Vernier caliper”.
Q-3 (A)
Define roundness. List the measuring methods of it and explain any one with figure.
4
(B)
Draw a neat sketch of Parkinson’s gear tester. Explain working principle of Parkinson’s gear tester.
4
OR
(A)
Explain the best wire size for thread measurements. State its mathematical relation.
(B)
Explain Plug gauge & Snap gauge with the help of diagram.
1/3
Seat No.: ________ Enrolment No.______________
GUJARAT TECHNOLOGICAL UNIVERSITY DIPLOMA ENGINEERING – SEMESTER – IV EXAMINATION –WINTER - 2018
Subject Code: 3341905 Date: 30-11-2018
Subject Name: METROLOGY & INSTRUMENTATION
Time: 02:30 PM TO 05:00 PM Total Marks: 70 Instructions:
1. Attempt all questions.
2. Make Suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of programmable & Communication aids are strictly prohibited.
5. Use of only simple calculator is permitted in Mathematics.
6. English version is authentic.
Q.1 Answer any seven out of ten. દશમ ાંથી કોઇપણ સ તન જવ બ આપો. 14