Bennett Mechanical Test Comprehension 3

Question 1

A large gear drives a small gear. The small gear will turn:

Accepted Answer

Faster than the large gear

Answer

Slower than the large gear

Answer

At the same speed

Answer

In the same direction

Question 2

Two people carry a load on a pole. To make one person bear less weight, the load should be moved:

Accepted Answer

Closer to the other person

Answer

To the exact middle

Answer

Closer to the first person

Answer

Off the pole

Question 3

Which object will float in water?

Accepted Answer

A sealed empty plastic bottle

Answer

A solid steel block

Answer

A brick

Answer

A lead weight

Question 4

An inclined ramp is used instead of lifting straight up. The ramp:

Accepted Answer

Reduces the force needed over a longer distance

Answer

Reduces the total work to zero

Answer

Increases the weight

Answer

Requires more force than lifting

Question 5

When two springs of equal strength are connected end to end and stretched, compared to one spring they:

Accepted Answer

Stretch more for the same pull

Answer

Stretch less

Answer

Do not stretch

Answer

Break instantly

Question 6

A flywheel is heavy and spins. Its main purpose is to:

Accepted Answer

Store rotational energy and smooth motion

Answer

Reduce the machine's weight

Answer

Increase friction

Answer

Cool the engine

Question 7

Cold weather causes a metal bridge to do what?

Accepted Answer

Contract and become slightly shorter

Answer

Expand and lengthen

Answer

Melt

Answer

Float