The efficiency of turbocharge system i

1、If the speed of a turbocharged diesel

If the speed of a turbocharged diesel engine is maintained constant the turbocharger speed will （）Adecrease until the engine speed increasesBincrease as the load increasesCdecrease as the loadDincreases remain unchanged

2、The efficiency of a flash type evapora

The efficiency of a flash type evaporator can be increased by（）Alowering brine discharge densityBdecreasing the absolute pressure of each stageCincreasing the saltwater feed heater temperatureDincreasing the pressure at the spray pipe

3、The mechanical efficiency of an engine

The mechanical efficiency of an engine is always less than 100% （） losses occurring in the form friction.AbecauseBsinceCdue toDowing to

4、If the turbocharger of a four-stroke/c

If the turbocharger of a four-stroke/cycle diesel engine fails to operate, which of the following statements best describes the probable effect?...

5、The operating speed of a turbocharger

The operating speed of a turbocharger is directly dependent upon（）Aengine speedBengine loadCintake manifold pressureDatmospheric pressure

6、The speed of the turbocharger for a fo

The speed of the turbocharger for a four-stroke/cycle diesel engine driving a generator at constant speed depends on the （）Aengine speedBkilowatt loadCfuel injection pressureDair intake manifold temperature