更多"In each cylinder cover is a large c"的相关试题:
[单项选择]In each cylinder cover there are two or three holes for （）
A. the exhaust valves
B. the fuel valves
C. indicator cocks
D. the fuel pumps
[单项选择]The opening of an exhaust valve on a modem, large, low-speed, main propulsion diesel engine may be actuated by （）.
A. direct action of cam shaft
B. compressed air pressure
C. hydraulic “push rods”
D. direct action of the main piston moving down
[单项选择]His scientific interests cover a wide（）
A. scale
B. territory
C. draft
D. instinct
[单项选择]The satellites over the major ocean regions cover the globe（）.
A. besides the polar regions
B. including the North Pole and the South Pole
C. above 70N and below 70S
D. as far north and south 70
[单项选择]When the opening pressure of a diesel engine fuel injector is greater than that specified by the engine manufacturer, which of the following problems can be expected?（）
A. Quantity of fuel injected tends to be decreased
B. Quantity of fuel injected will always be increased
C. Start of injection tends to be advanced
D. Duration of injection will always greater
[单项选择]When the opening pressure of a diesel fuel injector is greater than that specified by the engine manufacturer，the （）
A. quantity of fuel injected is decreased
B. quantity of fuel injected will always be increased
C. start of injection is advanced
D. duration of injection will always be greater
[单项选择]A fuel injection valve opening at pressure lower than normal will result in（）.
A. late fuel injection
B. early fuel injection
C. high exhaust temperature from that cylinder
D. decreased effective stroke from that injector
[单项选择]The opening or closing of the cylinder starting valve is controlled by （）.
A. the starting air distributor
B. the cut-off valve on the air main
C. the main starting valve
D. the air bottle control valve
[单项选择]The opening in the deck beneath the anchor windlass that leads to the chain locker is the（）.
A. hawse pipe
B. fall pipe
C. drop-pipe
D. spill pipe
[单项选择]Most drill ships and barges have a walled opening below the derrick，open to the water’s surface and through which various drilling tools can pass down to the sea floor called a （）.
A. moon pool
B. spider deck opening
C. pontoon
D. keyway
[单项选择]The crankcase cover should never be allowed to open for investigation when （）
A. the engine stops
B. the engine is running
C. you repair the engine
D. overhauling the engine
[单项选择]The joint face between the cylinder cover and the liner is arranged （）the combustion process as possible.
A. such far away from
B. such near by
C. as far away from
D. as near by
[单项选择]Opening of the cylinder （） will admit compressed air into the cylinder.
A. safety valve
B. indicator cock
C. blow-down valve
D. start valve
[单项选择]The size of the exhaust valve opening is （）
A. most critical in a four-stroke cycle diesel engine
B. most critical in a two-stroke/cycle diesel engine
C. most critical in a four-stroke/cycle diesel engine if it is turbocharged
D. of equal importance in a two-stroke/cycle diesel engine as in a four-stroke/cycle diesel engine
[单项选择]A device fitted over the discharge opening on a relief valve consisting of one or two woven wire fabrics is called a flame（）.
A. stopper
B. screen
C. filter
D. restrictor
