Bennett Mechanical Test Comprehension 2

Question 1

Two gears mesh together. If the driver gear turns clockwise, which way does the driven gear turn?

Accepted Answer

Counterclockwise

Answer

Clockwise

Answer

It stops

Answer

Both directions

Question 2

A lever has its load close to the fulcrum and effort far away. What does this arrangement provide?

Accepted Answer

A mechanical advantage that reduces effort needed

Answer

More speed at the load

Answer

No change in force

Answer

Increased load weight

Question 3

Water flows through a pipe that narrows. What happens to the water's speed in the narrow section?

Accepted Answer

It increases

Answer

It decreases

Answer

It stays the same

Answer

It stops

Question 4

Which surface produces the most friction when an object slides across it?

Accepted Answer

Rough concrete

Answer

Polished glass

Answer

Wet ice

Answer

Oiled metal

Question 5

A pulley system uses two supporting rope sections to lift a load. How does this affect the effort needed?

Accepted Answer

It roughly halves the effort

Answer

It doubles the effort

Answer

It has no effect

Answer

It triples the effort

Question 6

Hot air inside a sealed balloon will cause the balloon to do what?

Accepted Answer

Expand and rise

Answer

Shrink and sink

Answer

Stay exactly the same

Answer

Freeze

Question 7

If a wrench handle is made longer, turning a tight bolt becomes:

Accepted Answer

Easier

Answer

Harder

Answer

Impossible

Answer

Unchanged