Preventive Maintenance Final Exam
Review (updated) questions with 100%
complete solutions
List three advantages of an electrical preventive maintenance program. - correct
answer ✔✔1. Provides maximum freedom from breakdown during normal
operation.
2. Controls the cost of maintenance repairs and Equipment replacement.
3. Reduces accidents and possibly saves lives.
List seven detrimental conditions that decrease the performance and life
expectancy of electrical equipment. - correct answer ✔✔1. Dirt
2. Moisture
3. Loose connections
4. Too much friction
5. Too much lubrication
6. Over loaded equiptment
7. Insects and rodents
List six types of test instruments that play an important role in assisting personnel
to analyze, predict and prevent ongoing electrical maintenance concerns. - correct
answer ✔✔1. Infrared viewers
2. Ultrasound transducers
3. Multi-meters
, 4. Megohm-meters
5. Oscilloscope
6. Micro-ohmmeters
What four senses, that nature gave us, can be used for unaided inspection of
electrical equipment? - correct answer ✔✔1. Eyes
2. Ears
3. Touch
4. Nose
Should electrical connections be kept tight and torqued to manufacturer's
recommended values? - correct answer ✔✔Yes
List two applications where heavy dirt contamination cannot be avoided. - correct
answer ✔✔1. Grain elevators
2. Mines
List two specific problems that can arise when electrical equipment operates in an
area with high humidity and/or moisture condensation. - correct answer ✔✔1.
Oxidation of metals
2. Insolation degration
Why can too much lubricant be worse than no lubricant at all? - correct answer
✔✔Because it collects dust and attacks insulation
Review (updated) questions with 100%
complete solutions
List three advantages of an electrical preventive maintenance program. - correct
answer ✔✔1. Provides maximum freedom from breakdown during normal
operation.
2. Controls the cost of maintenance repairs and Equipment replacement.
3. Reduces accidents and possibly saves lives.
List seven detrimental conditions that decrease the performance and life
expectancy of electrical equipment. - correct answer ✔✔1. Dirt
2. Moisture
3. Loose connections
4. Too much friction
5. Too much lubrication
6. Over loaded equiptment
7. Insects and rodents
List six types of test instruments that play an important role in assisting personnel
to analyze, predict and prevent ongoing electrical maintenance concerns. - correct
answer ✔✔1. Infrared viewers
2. Ultrasound transducers
3. Multi-meters
, 4. Megohm-meters
5. Oscilloscope
6. Micro-ohmmeters
What four senses, that nature gave us, can be used for unaided inspection of
electrical equipment? - correct answer ✔✔1. Eyes
2. Ears
3. Touch
4. Nose
Should electrical connections be kept tight and torqued to manufacturer's
recommended values? - correct answer ✔✔Yes
List two applications where heavy dirt contamination cannot be avoided. - correct
answer ✔✔1. Grain elevators
2. Mines
List two specific problems that can arise when electrical equipment operates in an
area with high humidity and/or moisture condensation. - correct answer ✔✔1.
Oxidation of metals
2. Insolation degration
Why can too much lubricant be worse than no lubricant at all? - correct answer
✔✔Because it collects dust and attacks insulation
