在船舶以主机“正常全速”运行时，尽管速度设定及压力正常，转速逐渐下降，驾驶台控制立即转换至机旁控制。利用机旁操纵杆，速度被设定在正常全速，但是转速依然下降。经仔细检查确定为调速器自身故障。
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二冲程柴油机的曲柄销靠近这轴颈的一侧磨损大的原因是_______
A. 气体力的作用
B. 惯性力的作用
C. 摩擦力的作用
D. A+B
You are attempting to parallel two AC generators and the synchroscope pointer is revolving
A. higher than the bus frequency
B. lower than the bus frequency
C. file same as file bus frequency but out of phase with it
D. the same as the bus frequency, and the circuit breaker may be closed at nay pointer position
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