【单选题】Suppose the rated capacity of the main engine of a ship is 10,000 kW at 100 rated rpm, then when at 80 rpm its capacity should be _____.
【单选题】Rated current of AC contactor under different rated voltage
B.
has nothing to do with the voltage
C.
is proportional to the voltage
【单选题】Rated current of the contactor refers to ( )
A.
rated current of the coil
B.
rated current of the main contact
C.
rated current of the auxiliary contact
D.
None of the above three
【单选题】The rated power of this inductive motor is 3 Kw, this means ______.
A.
The rated power of this inductive motor is 3 Kw, this means ______.
B.
The rated power of this inductive motor is 3 Kw, this means ______.
C.
the maximum mechanical input power of the shaft is 3 Kw
D.
the maximum electric output power of the power source is 3 Kw
【单选题】将公安部的出入境管理、边防检查职责整合,建立健全签证管理协调机制,组建国家__管理局。
【单选题】The car is running at the ______ of 40 kilometers an hour.
【单选题】The generator normally operates at 5% above the network rated voltage, so the rated voltage of the generator is specified to be 5% above the network rated voltage. Accroding to the above description, ...
【单选题】The windlass shall be able to work continuously for _____ at the rated speed of the rated load,
【单选题】Rated current of the thermal relay is according to ( ).
A.
the rated current of the motor
C.
control circuit of current
D.
electric heating element of the current selection
【单选题】Rated current of the thermal relay setting according to the rated current of the motor, generally choose ( ) times of the motor rated current.