CPE Facility Operations & Maintenance 2

Question 1

Which predictive maintenance technique uses lubricant analysis to detect internal machine wear?

Accepted Answer

Oil analysis

Answer

Oil analysis detects metallic particles and chemical changes in lubricant that indicate internal wear before failure occurs.

Question 2

A facility's HVAC system is experiencing high energy consumption. The FIRST diagnostic step should be to:

Accepted Answer

Check and replace air filters

Answer

Clogged air filters are the most common and easiest-to-fix cause of increased HVAC energy consumption.

Question 3

What is the purpose of a lockout/tagout (LOTO) procedure during maintenance?

Accepted Answer

To prevent accidental equipment energization during service

Answer

LOTO procedures ensure energy sources are isolated and cannot be re-energized while personnel are performing maintenance.

Question 4

A boiler's flue gas analysis shows high CO2 and low O2 levels. This indicates:

Accepted Answer

Insufficient air causing incomplete combustion

Answer

Low O2 in flue gas indicates insufficient combustion air, leading to incomplete combustion and potential CO formation.

Question 5

Which maintenance metric is defined as the average time between consecutive failures of a repairable system?

Accepted Answer

MTBF (Mean Time Between Failures)

Answer

MTBF measures the average operating time between failures of a repairable system, indicating reliability.

(CPE) Certified Plant Engineer Practice Test