The average pressure exerted on piston during each power stroke is termed（）
A、indicated horsepower
B、mean effective pressure
C、exhaust back pressure
D、compression pressure
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The average pressure exerted on piston during each power stroke is termed（）
A、indicated horsepower
B、mean effective pressure
C、exhaust back pressure
D、compression pressure
Most anchor handling equipment incorporates （） for mooring purposes.
A、cable lifters
B、spur wheels
C、bollard
D、warpends
When oily water separator is operating, which measure （） is wrong.
A、pay attention to operating parameters
B、renew and clean separating units in time
C、check oil level in separator to prevent overload
D、check separating effect, if it is bad, flush with large capacity water pump
Most conducting materials such as copper, aluminum, iron, nickel, and tungsten （）.
A、increase in resistance with increased temperature
B、increase in resistance with decreased temperature
C、decrease in resistance with increased temperature
D、increase in conductance with increased temperature
To safeguard the operator and other personnel working on or near a hoisting operation which of the following precautions should be observed?（）
A、Keep a load on the hoist until all personnel are finished working
B、Set the load on a movable dolly when transportation may be needed
C、Have one man keep a hand on the load to steady it
D、Insure that the lifting gear capacity is not exceeded
Basically the bedplate consists of two （）, which run the length of the engine.
A、longitudinal girders
B、transverse girders
C、fore girders
D、aft girders
