更多"Cracks in the cylinders and cylinde"的相关试题:
[单项选择]Cracks in cylinder and cylinder covers may （） from unequal heating.
A. make
B. cause
C. result
D. produce
[单项选择]The cylinder covers and the liners are bolted together by means of （）.
A. bolts welded into the cylinder head
B. bolts welded into the cylinder frames
C. studs screwed into the cylinder head
D. studs screwed into the cylinder frames
[单项选择]The cylinder covers are secured by eight elastic holding down arranged in four pairs（）
A. nuts
B. screws
C. studs
D. flanges
[单项选择]Cracks may be prevented from developing at the corners of welded plating inserts by（）.
A. squaring the corners
B. rounding the corners
C. plug welding the corners
D. slot welding the corners
[单项选择]The cooling liquid used for the cylinder may be referred to as （）.
A. jacket water
B. make-up water
C. boiler water
D. flushing water
[单项选择]The cylinder liner forming the cylinder wall and the inside of the water jacket is called a（）
A. dry liner
B. wet liner
C. jacket liner
D. corrugated liner
[单项选择]On the top of the cylinder is mounted the cylinder cover which is pressed onto （） of the cylinder liner by means of nuts and studs.
A. the camshaft
B. the flange
C. the ridge
D. the bulge
[单项选择]The cylinder oil is pumped into the cylinder (via non-return valves) when the piston rings pass the lubricating orifices during （）
A. the upward stroke
B. the downward stroke
C. the power stroke
D. the suction stroke
[单项选择]The cylinder head, cylinder liner and （） form the combustion chamber.
A. frame
B. piston
C. crankcase
D. explosion plate
[单项选择]（） is used for cylinder and cylinder head, the salt water is used for cooling the lubricating oil, the fresh water in the coolers and the charging air in the air cooler.
A. The fuel oil
B. The lube oil
C. The sea water
D. The fresh water
[单项选择]Mechanical lubricators for diesel engine cylinders are usually small reciprocating pumps which are （）.
A. operated manually once an hour
B. operated until the engine has started
C. placed into operation only at maximum load
D. adjustable to meet lubrication requirements
[单项选择]Boilers and cylinders are（）.
A. raw metallic products
B. finished metallic products
C. consumable products
D. Manufactured goods of large Size
[单项选择]The oil lubricating diesel engine cylinders usually contain additives formulated to impart a high degree of alkalinity to （） the acid conditions.
A. invade
B. provide
C. detergent
D. neutralize
[单项选择]CO2 cylinders equipped with pressure actuated discharge heads will discharge automatically when（）.
A. the discharge valve is open
B. the control box glass is broken
C. pressure from the control cylinders is detected
D. the control cylinders have been completely discharged
[单项选择]
Exhaust temperature increases in all cylinders, the possible cause may be（）
(1) increased scavenging air temperature
(2) air in fuel pumps and fuel valves
(3) fouling of air and gas passages
A. (1)+(2)
B. (1)+(3)
C. (2)+(3)
D. (1)+(2)+(3)
[单项选择]Successful combustion inside the cylinders of a diesel engine is dependent upon （）.
A. fine atomization
B. high temperature
C. good mixing of fuel and air
D. all of the above
[单项选择]Cylinders of marine diesel engines are normally cooled by （）.
A. sea water
B. fine mineral oil
C. sanitary water
D. fresh water
[单项选择]The sequence of fuel injection into cylinders is determined by （）.
A. the steering
B. the driven gear
C. the turning gear
D. the timing gear
