Bennett Mechanical Test Comprehension 4

Question 1

A screw is essentially which simple machine wrapped around a cylinder?

Accepted Answer

An inclined plane

Answer

A lever

Answer

A pulley

Answer

A wheel and axle

Question 2

Three identical gears are in a line, all meshed. If the first turns clockwise, the third turns:

Accepted Answer

Clockwise

Answer

Counterclockwise

Answer

It does not move

Answer

Faster only

Question 3

A heavier object and a lighter object are dropped together in a vacuum. They:

Accepted Answer

Hit the ground at the same time

Answer

The heavy one lands first

Answer

The light one lands first

Answer

Neither falls

Question 4

To balance a seesaw, a lighter child should sit:

Accepted Answer

Farther from the center

Answer

Closer to the center

Answer

On top of the heavier child

Answer

Off the seesaw

Question 5

A belt connects two pulleys without crossing. The two pulleys rotate:

Accepted Answer

In the same direction

Answer

In opposite directions

Answer

Not at all

Answer

At random

Question 6

A pressure gauge on a sealed tank rises when the gas inside is heated because:

Accepted Answer

Heated gas pushes harder on the tank walls

Answer

The gas turns to liquid

Answer

The tank shrinks

Answer

Heat removes pressure

Question 7

Which would require the least force to roll up a hill?

Accepted Answer

A round ball on a gentle slope

Answer

A square block on a steep slope

Answer

A round ball on a steep slope

Answer

A square block on a gentle slope