单项选择题

Which of the listed items will stop a motor due to a reduction in voltage and restart it when the voltage is restored to normal?（）

A.Low voltage protection circuit
B.Non-renewable link fuse
C.Renewable link fuse
D.Low voltage release circuit

相关考题

Which of the following statements concerning a simple p...

单项选择题Which of the following statements concerning a simple parallel resistance circuit is correct?（）

A.The voltage drop across each resistor is the same
B.The total current flow equals the reciprocal of the sum of the individual currents
C.The total resistance equals the sum of the individual resistances
D.The total voltage equals the sum of the individual voltages across each resistance

A ground in an electrical circuit outside the engine ro...

单项选择题A ground in an electrical circuit outside the engine room （）.

A.cannot be detected tinder normal conditions
B.is of no consequence to engineering personnel
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D.is indicated by the ground detecting lamps on the main switchboard

Grease coatings on electrical contact surfaces increase...

单项选择题Grease coatings on electrical contact surfaces increase contact resistance and should be removed with a/an （）.

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D.10% solution carbon solvent and water

船舶电气与船舶安全

Which of the listed items will stop a motor due to a reduction in voltage and restart it when the voltage is restored to normal?（）