Mechanical drafting materials with assessment (e-quiz) for Grade 7 students

DRAFTING MATERIALS/ TOOLS/ INSTRUMENTS AND

THEIR USES/FUNCTIONS

1. Masking Tape- used for fastening the drawing paper on the drawing table or drawing board.

2. Drawing Paper- commonly used in drawing such as olso or typewriting.

3. Sharpener- used for sharpening pencils whenever they show sign of dullness.

4. Eraser - used to clean the dirt off the drawing.

5. Pencils - the most important tool in mechanical drawing.

6.Triangular Scales- used when reproducing a drawing in an enlarged or reduced form to some regular proportion.

7.Erasing Shield- used to protect the rest of the drawing when clearing up smudges, unnecessary pencil lines and other erasures.

8.T-Square- a drawing instrument used when making horizontal lines and also used for guiding triangles when drawing vertical lines.

9.Triangles- It is a three-sided ruler, which typically has two equal sides meeting at

a 90 degree angle and to a third side at 45, 30, including 60 degree angles.

10. Compass- drawing instrument is used when drawing arcs and circles.

11. Divider- drawing instrument used when transferring measurements, dividing lines and arcs into the desired number of equal parts.

12. Protractor- used to determine gradations of the degrees when measuring arcs, angles and circles.

13. Ruler - most popular type of measuring tool that is usually 6 or 12 inches in length and used for drawing straight lines.

14. French curve- used to connect endpoints of straight lines to form an arc.

How much have you learned?

Identify the word/s that is being described in each item and name the following picture. Write your answer on your answer sheet.

GOOD LUCK!

Let’s start….

A. 1. _____________ is used for fastening the drawing paper on the drawing table or drawing board.

2. _______________ is commonly used in drawing such as olso or typewriting.3._________ is used for sharpening pencils

whenever they show sign of dullness.

4._________is used to clean the dirt off the drawing.

5. _______________is the most important tool in mechanical drawing.

B. 6. _________________

7._______________

8. ______________

9.________________

10.________________

11.________________

12. _______________

13. _______________

14. _______________

15. _______________

Let us check…

Are you ready?

A. Identification 1. masking tape 2. drawing paper 3. sharpener 4. eraser 5. pencils

B. Picture Identification 6. triangular scale 7. drawing paper 8. sharpener 9. eraser 10. erasing shield

B. Picture Identification 11. T-square 12. Triangle 13. Compass 14. Divider 15. Protractor

The passing score is 13.

Congratulations! You can proceed to next

station….