单项选择题
A.tachometer B.pyrometer C.dynamometer D.calorimeter
To shut down a diesel engine after it exceeds the set m...
单项选择题To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
A.Speed limiting governor B.Over-speed governor C.Over-speed trip D.Over-speed relay
Which of the listed governor characteristics will great...
单项选择题Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
A.Sensitivity B.Power C.Speed droop D.Compensation
Thermostatic steam pressure reducing valves are used in...
单项选择题Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
A.double bottom fuel oil tank temperature B.heater supply steam flow C.pressure of the fuel supplied to the burners D.attemperator steam flow in the heater discharge circuit
