The compressor on the ships service...

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Question 1 of 205eccef9ebacbc34ba4d46189

The compressor on the ships service refrigeration system starts up but stops after a brief period of running. Subsequent attempts to start it produce no result. What control component would you suspect?

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🔍 Key Concepts

• Safety cutouts in refrigeration systems (high pressure, low pressure, oil pressure) • Typical symptoms when a high pressure cutout trips versus an oil pressure switch failure • Which components will stop the compressor AND prevent immediate restart until manually reset

💭 Think About

• Think about which device is designed to protect the compressor if something abnormal happens shortly after start-up, and then locks out further starts. • Ask yourself: which of these options is actually an electrical/control safety device, and which are just pressure/flow regulating components in the system? • Consider what kind of problem would allow the compressor to start, then shut it down after a short time, and then block any further starts until the fault is cleared or reset.

✅ Before You Answer

• Identify which choices are true control/safety switches versus simple valves or regulators. • Verify which device, when activated, would open the control circuit to the compressor starter and require a reset before it will run again. • Confirm which option is specifically intended to protect the compressor from abnormal pressure conditions on the discharge side of the system.

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