The operation of paralleling two alternators requires the voltages to be _____ and also in
A. zero
B. eliminated
C. different
D. equal
查看答案
What must be handed over to relieving Engineer Officer at transition of change command?
图17—3显示的是一国的劳动力市场,其生产函数是第1题的生产函数。在该图中,指出均衡的实际工资率和就业率。使用图17—2中的生产函数,确定该国潜在的GDP。
使用盘车从扫气口观察活塞环等零件的工作状态之前,预先必须要做的准备工作包括_____。Ⅰ.合上盘车机;Ⅱ.关闭起动空气;Ⅲ.停止冷却水或冷却油的循环;Ⅳ.手摇气缸油注油器注油;Ⅴ.关闭主起动阀。
A. Ⅰ+Ⅱ+Ⅲ+Ⅳ+Ⅴ
B. Ⅰ+Ⅱ+Ⅲ+Ⅴ
C. Ⅰ+Ⅱ+Ⅳ+Ⅴ
D. Ⅰ+Ⅱ+Ⅴ
If some of the cylinders are not firing, the ones affected may be determined by watching
A. the exhaust temperature
B. the exhaust pressure
C. the governor
D. the fuel flow meter