Mechanical Aptitude Test Mechanical Aptitude MCQ 1

Question 1

A single fixed pulley changes the direction of a force but provides no mechanical advantage. What is the ideal mechanical advantage of a single movable pulley?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 2

A wrench applies a force of 50 N at a distance of 0.4 m from a bolt. What is the torque applied to the bolt?

Accepted Answer

20 N·m

Answer

10 N·m

Answer

50 N·m

Answer

125 N·m

Question 3

Water flows through a pipe that narrows from a diameter of 4 cm to a diameter of 2 cm. Compared to the wider section, the water speed in the narrower section is:

Accepted Answer

Four times as fast

Answer

Half as fast

Answer

The same speed

Answer

Twice as fast

Question 4

A spring with a spring constant of 200 N/m is compressed by 0.05 m. How much elastic potential energy is stored in the spring?

Accepted Answer

0.25 J

Answer

0.10 J

Answer

5.00 J

Answer

10.00 J

Question 5

Two pulleys are connected by a belt. The driving pulley has a radius of 10 cm and rotates at 300 RPM. If the driven pulley has a radius of 5 cm, what is its rotational speed?

Accepted Answer

600 RPM

Answer

150 RPM

Answer

300 RPM

Answer

450 RPM

Question 6

A screw has a pitch of 2 mm (the distance it advances per full rotation). If a force of 10 N is applied at the end of a screwdriver handle with a radius of 4 cm, what is the approximate mechanical advantage of the screw?

Accepted Answer

126

Answer

8

Answer

63

Answer

251