coulombs per second
revolutions per second
revolutions per minute
cycles per second
第1题：
sodium chloride equivalent
第2题：
An alternator is being paralleled with one on the line At the instant the circuit breaker is close, the frequency of the incoming alternator will normally
A.increase
B.not change
C.decrease
D.be exactly 60 hertz
第3题：
_______
[A] fundamental [B] comprehensive [C] equivalent [D] hostile
第4题：
Which two are natively included by the IEEE 802.1w standard？（）
第5题：
第6题：
The output voltage of a 440 volt, 60 hertz, AC generator is controlled by the
A.prime mover speed
B.exciter output voltage
C.load on the alternator
D.number of poles
第7题：
______ means a unit in which goods are totally enclosed by sufficient strong boundaries such as a freight container, a tank or a vehicle unit with fabric sides or tops.
A.UNIT
B.CONTAINER
C.VEHICLE
D.CLOSED TYPE UNIT
第8题：
表示话务量的单位是()。
A.Erlang
B.Bitspersecond
C.Hertz
第9题：
表示话务量的单位是：（）。
第10题：
Which logical unit number must be configured on an interface using PPP encapsulation?（）