Bennett Mechanical Test Comprehension 5

Question 1

A worm gear drives a spur gear. This setup is known for:

Accepted Answer

High gear reduction in a small space

Answer

Increasing speed greatly

Answer

Reducing torque

Answer

Reversing easily

Question 2

Two containers of water are connected at the bottom. The water level in both will:

Accepted Answer

Settle to the same height

Answer

Be higher in the larger one

Answer

Be higher in the smaller one

Answer

Empty completely

Question 3

A nail is easier to pull out with a claw hammer than by hand because the hammer acts as:

Accepted Answer

A lever multiplying force

Answer

A pulley

Answer

A spring

Answer

An inclined plane

Question 4

If you double the number of teeth on a driven gear, its rotation speed will:

Accepted Answer

Be cut roughly in half

Answer

Double

Answer

Stay the same

Answer

Stop

Question 5

A diver feels more pressure deeper underwater because:

Accepted Answer

The weight of water above increases with depth

Answer

Water gets colder

Answer

Light decreases

Answer

Oxygen rises

Question 6

Which arrangement lifts a heavy load with the least effort?

Accepted Answer

A multi-pulley block and tackle

Answer

A single fixed pulley

Answer

Lifting by hand

Answer

A short lever

Question 7

A bimetallic strip bends when heated because the two metals:

Accepted Answer

Expand at different rates

Answer

Have the same weight

Answer

Both melt

Answer

Stop conducting heat