ITMC Mechanical Systems & Equipment Maintenance 2

Question 1

Which type of bearing is best suited for handling both radial and axial (thrust) loads simultaneously?

Accepted Answer

Angular contact ball bearing

Answer

Angular contact ball bearings are designed to handle combined radial and axial loads due to their contact angle geometry.

Question 2

When a V-belt drive shows signs of slipping under load, the FIRST corrective action should be:

Accepted Answer

Adjust center distance to increase belt tension

Answer

Adjusting the center distance to restore proper tension is the first step before considering replacement or other measures.

Question 3

A pump cavitates when the fluid pressure at the inlet falls below the liquid's:

Accepted Answer

Vapor pressure

Answer

Cavitation occurs when inlet pressure drops below the fluid's vapor pressure, causing vapor bubbles to form and collapse.

Question 4

What is the primary purpose of a mechanical seal in a centrifugal pump?

Accepted Answer

To prevent fluid leakage along the shaft

Answer

Mechanical seals prevent process fluid from leaking out along the rotating pump shaft.

Question 5

Which gear type produces the LEAST amount of noise during operation?

Accepted Answer

Helical gear

Answer

Helical gears have angled teeth that engage gradually, resulting in quieter and smoother operation than spur gears.

(ITMC) Industrial Technology Maintenance Certification Practice Test