Ramsay Test Mechanical Aptitude 5

Question 1

A worm gear driving a spur gear is commonly used because it provides:

Accepted Answer

A large gear reduction and high torque

Answer

Very high speed and low force

Answer

Reversible self-locking only

Answer

No mechanical advantage

Question 2

In an electrical circuit, increasing the resistance while voltage stays constant will cause the current to:

Accepted Answer

Decrease

Answer

Increase

Answer

Stay the same

Answer

Reverse direction

Question 3

Which arrangement of two springs supporting a load gives the LEAST total stretch?

Accepted Answer

Two springs in parallel (side by side)

Answer

One spring alone

Answer

Two springs in series (end to end)

Answer

Stretch is always the same

Question 4

A wheel and axle works as a force multiplier when force is applied to the:

Accepted Answer

Large wheel to turn the small axle

Answer

Small axle to turn the large wheel

Answer

Center of the axle only

Answer

Edge of the axle bearing

Question 5

Cooling a sealed container of gas while keeping its volume fixed will cause the gas pressure to:

Accepted Answer

Decrease

Answer

Increase

Answer

Stay constant

Answer

Become liquid instantly

Question 6

Which bearing type is best suited to handle a heavy thrust (axial) load along a shaft?

Accepted Answer

Thrust bearing

Answer

Standard ball bearing

Answer

Plain sleeve bearing

Answer

No bearing is needed

Question 7

A cam in a rotating mechanism is used primarily to:

Accepted Answer

Convert rotary motion into reciprocating (back-and-forth) motion

Answer

Store electrical charge

Answer

Increase rotational speed only

Answer

Reduce friction in bearings