更多"Before starting a reciprocating, st"的相关试题:
[单项选择]When starting a reciprocating pump, the inlet valve should be （）.
A. closed
B. opened fully
C. cracked open
D. partly open
[单项选择]A reciprocating pump belongs to （） according to its working principle.
A. injector pumps
B. positive displacement pumps
C. centrifugal pump
D. centripetal pumps
[单项选择]The reciprocating pump can’t draw water from a tank may be caused by （）.
A. leaky pipe
B. opened inlet valve
C. too much water in tank
D. None of the above
[单项选择]The discharge flow of a reciprocating pump is （）.
A. steady
B. in pulsation
C. continuous
D. large
[单项选择]When starting a centrifugal pump, the discharge valve should be （）.
A. closed
B. opened fully
C. cracked open
D. partly open
[单项选择]Pump up the starting air reservoirs to their maximum pressure and （）the air reservoirs and air system.
A. open
B. close
C. drain
D. vent
[单项选择]Before starting to hoist provisions，which should be checked?（）
A. Hoist rope is not kinked
B. Multiple part lines are not twisted around each other
C. The hook is centrally located over the load
D. All of the above
[单项选择]Before starting a diesel engine, you should always（）
A. check the pyrometer readings
B. check the crankcase oil level
C. check the fuel oil strainers
D. clean the fuel system
[单项选择]Before starting the engine the air bottle should be （）.
A. pumped up
B. loaded
C. discharged
D. opened
[单项选择]Before hydraulic starting of an engine on a covered lifeboat，what need NOT be checked?（）
A. Fuel supply line valve
B. Pressure registered on the accumulator gauge
C. Cold-spark voltage readings test lamp
D. Engine stop control
[单项选择]Open the （）before starting an air compressor.
A. unload valve
B. cooling water
C. oil cup
D. sump
[单项选择]Supply the （）before starting an air compressor.
A. fuel oil
B. cooling water
C. steam
D. power
[单项选择]Before liquid can flow into a pump, the air in the suction line must be （） sufficiently to cause the liquid to flow into the suction chamber.
A. filled
B. evacuated
C. compressed
D. charged
[单项选择]Open the （）of inter cooler before starting an air compressor.
A. cylinder cover
B. cooling water
C. oil cup
D. drain valve
[单项选择]Before starting an air compressor, It should be （）.
A. unloaded
B. primed
C. filled with water
D. greased
[单项选择]Before starting any diesel or gasoline engine，which of the following must be checked? （）
A. Oil level
B. Flow of cooling water
C. Exhaust discharge
D. All of the above
[单项选择]Before starting a diesel engine that has an engine driven lube oil pump, the engineer should （）.
A. open the bypass line
B. cut in the lube oil cooler
C. pressurize the lube oil system
D. top off the expansion tank
[单项选择]Before starting a gasoline engine on a motorboat，you should make sure for safety that（）.
A. the gasoline tank is full
B. the bilges，cabins，etc. are thoroughly ventilated
C. you have fresh water on board
D. Each of the above is followed
[单项选择]Before starting the turning gear, （） should be worked by hand to minimize corrosive action on the liners.
A. the indicators
B. the starting valves
C. the cylinder lubricators
D. the turning gear
