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USPS 955 Exam Solved Correct

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USPS 955 Exam Solved Correct What is a transistor? - Answer- A semiconductor device used to amplify and switch electronic signals or electrical power Protects pneumatic system from failure? - Answer- Pressure relief valve What happens when pneumatic system sue is compressed? - Answer- - volume is reduced - temperature is increased These two things aid performance of pneumatic system - Answer- - storage tank - accumulator What is EP Grease? - Answer- Extreme pressure grease What happens if a transistor is saturated? - Answer- It gets shorted EP grease is best used for - Answer- High temperature / Low speed What controls heavy electrical current? - Answer- Shunt Used for pilot light detection - Answer- Thermocouple 3 fatal shock factors - Answer- - path for current flow - enough current - duration of time

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USPS 955 Exam Solved Correct
What is a transistor? - Answer- A semiconductor device used to amplify
and switch electronic signals or electrical power

Protects pneumatic system from failure? - Answer- Pressure relief valve

What happens when pneumatic system sue is compressed? - Answer- -
volume is reduced
- temperature is increased

These two things aid performance of pneumatic system - Answer- - storage
tank
- accumulator

What is EP Grease? - Answer- Extreme pressure grease

What happens if a transistor is saturated? - Answer- It gets shorted

EP grease is best used for - Answer- High temperature / Low speed

What controls heavy electrical current? - Answer- Shunt

Used for pilot light detection - Answer- Thermocouple

3 fatal shock factors - Answer- - path for current flow
- enough current
- duration of time

How to determine what fuse size to use? - Answer- P/V = Amps
Amps x 125%

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