A.loss of field excitation
B.total loss of load
C.large increase in load
D.loss of steam pressure
您可能感興趣的試卷
你可能感興趣的試題
A.temperature rise
B.input kilowatts
C.horsepower
D.operating voltage
A.When it is a DC machine
B.When it is an AC machine
C.Any machine that operates on over 100 volts
D.Only when working on wet steel plates
A.the speed of the alternators
B.the field strength of the machines
C.the power factor of the alternators
D.steam supply to the prime movers
A.change AC to DCcurrent
B.change DC to AC current
C.neutralize a armature reaction
D.carry current to the outside circuit
A.they are used
B.the field windings are connected to the load
C.the armature circuit is connected to the load
D.the field windings are connected to the armature circuit
![](https://static.ppkao.com/ppmg/img/appqrcode.png)
最新試題
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is()
Under MARPOL Code the ship to which it applies has to carry ()
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?()
The additional mark ()in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the()
If separating effect is not good, which measure should be taken ()
Diesel engine air start system check valves are opened by ()
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the()
If two A.C.generators are to be operated in parallel, the load is distributed evenly by()
To shut down a diesel engine after it exceeds the set maximum speed,which type of device listed should be used?()