A.running at the same speed
B.grounded
C.of the same polarity
D.in phase
您可能感興趣的試卷
你可能感興趣的試題
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
最新試題
Diesel engine air start system check valves are opened by ()
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated()
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a()
The ISPS Code consists of a mandatory section-Part A, which shows()
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?()
To proceed to the assistance of a ship in distress is()
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?()
Cold weather starting of a diesel engine may be made easier by()
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?()
If two A.C.generators are to be operated in parallel, the load is distributed evenly by()