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
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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
The load between two steam-driven alternators operating in parallel may be adjusted by varying （）
A、the speed of the alternators
B、the field strength of the machines
C、the power factor of the alternators
D、steam supply to the prime movers
The demisters installed in a flash-type evaporator serve to （）
A、deaerate the first effect distillate
B、filter the condensed flash vapors
C、deaerate the first and second effect distillate
D、remove small water droplets entrained in the flashed vapor
The thermal expansion valve responds to the（）
A、amount of superheat in the vapor leaving the coil
B、amount of superheat in the liquid
C、temperature in the evaporator coils
D、pressure in the evaporator coils
The part of the shipboard electrical system used to control the distribution of power to the branch circuits, is the （）.
A、bridge control panel
B、disconnect links
C、governor relay box
D、main switchboard
Which of the following problems will occur if the internal drain at either end of a hydraulic, two-way, spool-type directional control valve cylinder were to become plugged?（）
A、The reservoir would become vapor bound
B、The valve would be placed in hydraulic lock
C、The spring loaded relief ports would open
D、The buffering chambers would be unable to function
