The steady frequency required from a ship...

Question 1 / 270705eccefa1bacbc34ba4d471f2

Question 1 of 270705eccefa1bacbc34ba4d471f2

The steady frequency required from a ship service generator for electrical power is maintained by means of a __________.

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Question 1 of 27070

The steady frequency required from a ship service generator for electrical power is maintained by means of a __________.

🔍 Key Concepts

• AC generator frequency depends on rotational speed and number of poles • How engine/governor systems keep prime movers (diesel/turbine) at nearly constant RPM under changing load • Difference between speed control vs. over‑speed limiting or simple fuel/throttle control

💭 Think About

• Which device is specifically designed to keep the shaft speed constant even when the electrical load on the generator changes? • Which option sounds more like a safety/limiting device rather than a continuous control device for normal operation? • How does changing the engine’s speed affect the Hertz (Hz) frequency output of an AC generator?

✅ Before You Answer

• Identify which choice is meant for maintaining constant running speed, not just adjusting speed occasionally • Eliminate any option that mainly provides over‑speed protection instead of continuous speed regulation • Ask: which device would a ship rely on to hold generator frequency (e.g., 60 Hz) steady as loads come on and off the system?

Question 1 of 27070

The steady frequency required from a ship service generator for electrical power is maintained by means of a __________.

throttle control mechanism

constant speed governor

speed limited governor

cam operated nozzle control valve

Question 1 / 270705eccefa1bacbc34ba4d471f2

Question 1 of 270705eccefa1bacbc34ba4d471f2

The steady frequency required from a ship service generator for electrical power is maintained by means of a __________.

Back

Question 1 of 27070

The steady frequency required from a ship service generator for electrical power is maintained by means of a __________.