Ramsay Test Technical Aptitude & Knowledge 5

Question 1

In a closed loop of piping, a centrifugal pump's main job is to:

Accepted Answer

Move fluid by adding velocity and pressure

Answer

Heat the fluid

Answer

Filter solids from the fluid

Answer

Measure fluid flow rate

Question 2

Cavitation in a pump is caused by:

Accepted Answer

Vapor bubbles forming and collapsing in the fluid

Answer

Excess lubrication

Answer

Too many gear teeth

Answer

Reversed polarity

Question 3

A check valve is designed to:

Accepted Answer

Allow flow in one direction only

Answer

Regulate temperature

Answer

Increase pipe diameter

Answer

Measure pressure drop

Question 4

A V-belt drive transmits power primarily through:

Accepted Answer

Friction between the belt and pulley grooves

Answer

Magnetic attraction

Answer

Direct gear meshing

Answer

Hydraulic pressure

Question 5

Which type of bearing is best suited to support a rotating shaft under radial load?

Accepted Answer

Ball bearing

Answer

Thrust washer only

Answer

Plain gasket

Answer

Cotter pin

Question 6

Misalignment of two coupled rotating shafts will most likely cause:

Accepted Answer

Increased vibration and premature wear

Answer

Lower electrical resistance

Answer

Higher fluid viscosity

Answer

Reduced gear teeth count

Question 7

The purpose of a lubricant between two moving metal surfaces is to:

Accepted Answer

Reduce friction and wear

Answer

Increase electrical conductivity

Answer

Add weight to the assembly

Answer

Raise the melting point of the metal