[单选题]

The essential part of the diesel engine, whose function is to convert the heat energy into the mechanical power, is the （）.

A . crankshaft

B . piston

C . connecting rod

D . bearing

参考答案与解析：

相关试题

_____ the engines, the diesel engine is

[单选题]_____ the engines, the diesel engine is ____ used engine on boardA．Between / more commonlyB．Among / the most commonlyC．Between / not more commonlyD．Among / not the most commonly

  • 查看答案

    • The heart of the diesel engine is the （）

    [单选题]The heart of the diesel engine is the （） where the fuel is burnt and the power developed.A . crankcaseB . cylinderC . scavenge boxD . pisto

  • 查看答案

    • The diesel engine is a type of （）.

    [单选题]The diesel engine is a type of （）.A . turbine engineB . gas turbineC . steam engineD . internal combustion engine

  • 查看答案

    • Diesel engine blow£­by is the leakage of

    [单选题]D．iesel engine blow-by is the leakage of combustion gases past the( ).A．oil rings onlyB．compression and scraper ringsC．cylinder liner sealingD．cylinder liner ring grooves

  • 查看答案

    • For a continuous operation diesel engine

    [单选题]F．or a continuous operation diesel engine, a duplex filter unit would be the best arrangement becauseA．changing filter elements would not interrupt engine operationB．filtering occurs twice in each pass of oil through the systemC．clogging will not occ

  • 查看答案

    • In an operating diesel engine, which of

    [单选题]In an operating diesel engine, which of the following conditions is an indication of a leaking air starting valve?A．Noise coming from that air starting valveB．Continuous operation of the starting air compressorC．Zero air pressure in the air starting

  • 查看答案

    • Overspeed of the diesel engine driving a

    [单选题]Overspeed of the diesel engine driving an electric generator could cause（）.A . low voltage tripB . reverse power tripC . damage to windingsD . excessive exhaust temperature

  • 查看答案

    • Maximum horsepower of a diesel engine is

    [单选题]Maximum horsepower of a diesel engine is attained （）.A . when the engine RPM is pulled down by overloadB . at rated engine RPMC . at 95 % of rated engine RPMD . at 95 % of a properly adjusted governor RPM with the engine under full load

  • 查看答案

    • The highest pressure in a diesel engine

    [单选题]The highest pressure in a diesel engine cylinder normally occurs （）.A . at TDCB . before TDCC . after TDCD . during air starting

  • 查看答案

    • A diesel engine is operating with excess

    [单选题]A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.A . reduce the engine loadB . increase the cooling water flowC . increase the lube oil pressureD . adjust the fuel

  • 查看答案