A.lagging
B.leading
C.maximum
D.minimum
您可能感兴趣的试卷
你可能感兴趣的试题
A.running at the same speed
B.grounded
C.of the same polarity
D.in phase
A.circuit breaker
B.amplifier
C.diode
D.capacitor
A.amount of temperature rise with no load
B.temperature of the compartment where the motor is located
C.normal operating temperature, less the room temperature
D.amount of temperature developed by an operating motor
A.higher than the bus frequency
B.lower than the bus freouencv
C.the same as the bus frequency but out of phase with it
D.the same as the bus frequency, and the circuit breaker may be closed at any pointer position
A.visual inspection for dirt accumulation
B.high megger readings
C.low operating temperature
D.the time period since the last cleaning
A.capacitive circuit
B.inductive circuit
C.magnetic circuit
D.resistive circuit
A.phase angle
B.frequency
C.wave form
D.half mode
A.vibration
B.watertight integrity
C.speed droop
D.reactive power
A.frequency meter
B.voltage regulator
C.governor control
D.sychroscope switch
A.rheostat
B.governor
C.exciter
D.capacitor
最新试题
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
The cetane rating of diesel fuel is an indication of the （）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
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（）
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）