單項(xiàng)選擇題To repair a small electrical motor that has been submerged in saltwater, you should ().

A.wash it with fresh water and apply an external source of heat
B.renew the windings
C.send it ashore to an approved service facility
D.rinse all electrical parts with a carbon tetrachloride cleaning solvent and then blow dry the motor with compressed air


您可能感興趣的試卷

你可能感興趣的試題

1.單項(xiàng)選擇題A fuse that blows often should be replaced only with a fuse of ().

A.the recommended current and voltage rating
B.higher current and voltage rating
C.higher current and lower voltage rating
D.lower current and higher voltage rating

2.單項(xiàng)選擇題A constant output voltage from an AC generator is maintained by the ().

A.prime mover governor
B.exciter generator
C.voltage regulator
D.reverse power relay

3.單項(xiàng)選擇題What type of rotor is used in split-phase motors?()

A.Dram
B.Salient pole
C.Squirrel-cage
D.Wound-rotor

4.單項(xiàng)選擇題The load sharing characteristics of two diesel generator operating in parallel are mostly dependent on their governor ().

A.load limit settings
B.idle speed settings
C.speed limit settings
D.speed droop settings

5.單項(xiàng)選擇題The first requirement for logical troubleshooting of any system is the ability to ().

A.collect all available data on a casualty
B.recognize normal operation
C.identify the probable cause of a symptom
D.isolate the faulty component

最新試題

By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a()

題型:單項(xiàng)選擇題

When does auxiliary burner of incinerator put into operation? ()Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish

題型:單項(xiàng)選擇題

The treatment of the fuel oils involves storage, heating, filtering and()

題型:單項(xiàng)選擇題

Flame failure in an automatically fired auxiliary boiler can from a/an ()

題型:單項(xiàng)選擇題

Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?()

題型:單項(xiàng)選擇題

Using a file without a handle may result in ()

題型:單項(xiàng)選擇題

()connectors hold best if a wire is accidentally pulled or a connection becomes loose.

題型:單項(xiàng)選擇題

A purge recovery system is used in a centrifugal air conditioning or refrigeration system to ()

題型:單項(xiàng)選擇題

Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?()

題型:單項(xiàng)選擇題

Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the()

題型:單項(xiàng)選擇題