Engineering Drawing MCQ with answer and solution

Concept

IS 1562-1962 gives standard scales for drawing. Diagonal Scale A has a graduated length of 150 mm.

Step-by-step solution

1. IS 1562-1962 covers scales used for engineering drawing. 2. As per this code, Diagonal Scale A has a graduated length of 150 mm. 3. 150 mm = 15 cm. 4. Answer: 15 cm.

Explanation

IS 1562 gives standard sizes for drawing scales. Diagonal Scale A has a graduated length of 150 mm, which is 15 cm. This is a size that fits a normal drawing sheet.

Why the other options are wrong

0.15 cm and 1.5 cm are too small to use for reading. 150 cm is too long for a drawing scale.

Shortcut

Remember: Diagonal Scale A = 150 mm = 15 cm.

Common mistake

Students mix up mm and cm, then choose 150 cm or 1.5 cm.