海船船员考试
单选题Diesel engines driving alternators operating in parallel must maintain set frequency regardless of load changesThe governor characteristic used to accomplish this is known as （）A actuationB sensitivityC compensationD thrust shaft
题目
actuation
sensitivity
compensation
thrust shaft
相似问题和答案
第1题：
The load sharing characteristics of two diesel generators operating in parallel are mostly dependent on their governor ______.
A.load limit settings
B.idle speed settings
C.speed limit settings
D.speed droop settings
第2题：
030 to 1
300 to 1
333 to 1
330 to 1
第3题：
A.filtering
B.centrifuging
C.depositing
D.operating
第4题：
chromium plating piston rings
knurling the piston skirt
extended maximum power operation
applying load to a cold diesel engine
第5题：
The alternators are not generating the same voltages and should be adjusted on automatic voltage regulator rheostats
Alternator frequencies are different and should be adjusted on the governor speed controllers
Alternators are out of phase and should be tripped and paralleled again
One alternator has lost one of its phases
第6题：
All diesel engines are classified as ______．
A.Four cycle
B.Compression ignition
C.Vacuum ignition
D.External combustion
第7题：
less even torque
higher cylinder head temperatures
fewer power strokes per revolution
greater weight/size requirements
第8题：
Diesel engines driving alternators operating in parallel must maintain a set frequency regardless of load changes. The governor characteristic used to accomplish this is known as _______.
A.actuation
B.sensitivity
C.compensation
D.promptness
第9题：
the speed of the alternators
the field strength of the machines
the power factor of the alternators
steam supply to the prime movers
第10题：
they are more heavily built
the fuel used is less volatile
they can be easily reversed
they operate at a lower speed