你可能感興趣的試題

On commonly used ships,if two A√Cgenerators are operated in parallel, the load is distributed evenly by （）.

A.varying the D-Cexciter voltage
B.varying the reluctance of the air gap
C.regulating the speed of prime mover
D.shorting out part of the armature windings

單項(xiàng)選擇題

Moisture in a D-Cmotor would cause （）.

A.short circuit
B.speed up
C.slow down
D.hunting