×
单选题
发电机产生的三相电压的频率与发电机转子转速成正比。
A
A.The generators supply a three-phase voltage. The frequency of this voltage increases when the generator rotor speed increases.
B
B.The rate of the three-phase voltage generated by the generator is proportional to the rotational speed of the generator rotor.
C
C.The frequency of the three-dimensional voltage produced by the generator is changed with the rotational speed of the generator rotor.
答案解析
正确答案：A
相关知识点：
发电机电压频率与转速成正比
相关题目
单选题
Do not make a recess of more than 5 mm for the studs.
单选题
Mix the material with a spatula.
单选题
Remove the pin before you turn the pulley.
单选题
To prevent unwanted friction, polish the surface.
单选题
Use an oil can to lubricate the turnbuckle.
单选题
All persons in this area must use a respirator.
单选题
Wind the tape on the reel.
单选题
Solvent that stays on the part can cause corrosion.
单选题
This check is used to examine the engine components or system for leakage when the engine operates at the idle-power position.
单选题
If you think that snow will fall, make sure that the vehicle is in the applicable configuration.
