ss1 examination – Regent school of science

Welcome to your First Term Mid-Term Test(26/27): Technical drawing SS1

Name

Class

Section A: Objective

1. Which of the following is the best way to store a T-square after use?

Lean it against a wall

Hang it by its head on a hook

Place it under heavy books

Leave it on the drawing board

2. Which of the following should be done to a drawing board when it is not in use?

Stack heavy objects on top of it

Leave it open to the sun

Keep it in a damp room

Store it flat or upright in a dry place

3. What is the main reason for keeping drawing instruments in an instrument box when not in use?

To make them heavier

To protect them from dust, moisture and damage

To keep them warm

To make them look neat

4. Which of the following is the correct procedure for fixing drawing paper to the board?

Tape the paper at the four corners

Glue the paper to the board

Nail the paper at the centre

Tie the paper with string

5. Why should the drawing board be placed with its left edge facing the light source for a right-handed draughtsman?

To avoid casting shadows over the work

To reduce the size of the drawing

To make the board look balanced

To keep the paper dry

6. Which instrument is used to draw horizontal lines on a drawing board?

T-square

Protractor

Set square

Compass

7. A line inclined at 30° to the horizontal is drawn using which combination of instruments?

T-square and 45° set square

T-square and 30°/60° set square

Two 45° set squares

Compass and protractor only

8. Vertical lines are drawn by aligning the set square with which edge?

The top edge of the drawing board

The working edge of the T-square

The centre line of the paper

The bottom edge of the paper

9. Which of the following is the correct first step in drawing the perpendicular bisector of a line AB?

Measure the length of AB with a ruler and divide by two

Use a protractor to measure a 90° angle at the midpoint

Draw a line from A at any convenient angle

Draw arcs of equal radius (more than half of AB) from A and from B, above and below the line

10. To divide a line AB into five equal parts, which step is correct?

Divide AB into five parts by eye

Use a protractor to measure the angle of AB

Draw a line from A at any convenient angle, mark five equal divisions, join the last point to B, then draw parallel lines through the other points

Bisect AB four times

Section B: Theory

1. Using only a pair of compasses and a ruler, construct the perpendicular bisector of a line AB of length 80 mm. Show all construction arcs clearly.

2. Divide a line PQ of length 90 mm into seven equal parts without using a ruler to measure each part.