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An electrical device which employs a stationary armature and a rotating electromagnetic field is used aboard as a

A. magnetic amplifier
B. ship's service alternator
C. three-wire DC generator
D. saturable core reactor

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While on watch in the engine room, you hear a continuous sounding of the general alarm. Which of the following actions should you take？

A. Make an entry in the official logbook
B. Open the master control valves on the fixed CO2 system
C. Start the fire pump and check discharge pressure
D. Secure auxiliary condenser overboard discharge

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Modern handheld digital tachometers operated by counting light pulses returned to the unit

A. the tach generator
B. either the coupling or shaft
C. a small bulb attached to the shaft
D. a piece of reflective tape

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The requirements of the ISM Code may be applied to

A. only oil tankers
B. only passenger ships
C. only containers
D. all kinds of ships

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为什么法定准备金率上升或者货币漏出率的下降会使货币乘数变小。

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An electrical device which employs a stationary armature and a rotating electromagnetic field is used aboard as a

A. magnetic amplifier B. ship's service alternator C. three-wire DC generator D. saturable core reactor

While on watch in the engine room, you hear a continuous sounding of the general alarm. Which of the following actions should you take？

Modern handheld digital tachometers operated by counting light pulses returned to the unit

The requirements of the ISM Code may be applied to

为什么法定准备金率上升或者货币漏出率的下降会使货币乘数变小。

A. magnetic amplifier
B. ship's service alternator
C. three-wire DC generator
D. saturable core reactor