Maintenance Flashcards
7 cards from real Ramsay Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Maintenance flashcards as text
What is the purpose of a check valve in a piping system?
Answer: To allow flow in one direction only
A check valve permits flow one way and prevents backflow.
When a three-phase motor runs in the wrong direction, what is the standard fix?
Answer: Swap any two of the three power leads
Reversing any two of the three phase leads reverses motor rotation.
Which fastener uses a tapered thread to create a tight, often leak-resistant joint in pipes?
Answer: NPT pipe thread
NPT tapered threads wedge together to seal pipe connections.
A vibration analysis shows a peak at 1x running speed. This most commonly indicates what?
Answer: Imbalance in the rotating component
A dominant 1x running-speed peak is the classic signature of imbalance.
What is the main advantage of predictive maintenance over preventive maintenance?
Answer: Work is based on actual equipment condition data
Predictive maintenance uses condition monitoring to service equipment only when needed.
Which instrument would you use to verify shaft alignment most precisely?
Answer: Dial indicator or laser alignment tool
Dial indicators and laser tools give precise alignment readings.
What does a pressure relief valve do in a hydraulic or pneumatic system?
Answer: Limits system pressure to a safe maximum
A relief valve opens to vent excess pressure and protect the system.