更多"For an ordinary modem marine four-s"的相关试题:
[单项选择]In heavy marine engine the practice is to drive the engine on（）which has previously been stored in starting air reservoirs.
A. electric motor
B. hydraulic motor
C. compressed air
D. turning gear
[单项选择]The development goals for a large marine engine are many often interact and in some cases even with each other（）
A. conflict
B. accord
C. harmonize
D. struggle
[单项选择]In an ordinary diesel engine the fuel injection begins （）
A. after TDC
B. before TDC
C. after BDC
D. before BDC
[单项选择]The joint of the riser in a marine riser system that compensates for heave，the up-and-down motion of a floater，is the（）.
A. flex joint
B. slip joint
C. heave joint
D. riser joint
[单项选择]（）are used for anchor gear in marine work where the chains must withstand the corrosive effects of seawater.
A. Chains
B. Wires
C. Ropes
D. Lines
[单项选择]Turbocharging of marine diesel engine is achieved by two distinct methods, （） termed the constant pressure and the pulse system.
A. respectable
B. respectful
C. respective
D. respectively
[单项选择]Before a marine diesel engine is started the cylinders and pistons must be （）.
A. cooled to appropriate temperature
B. warmed up gradually to appropriate temperature
C. opened up and renewed
D. ground and polished
[单项选择]A marine diesel engine is started by（）
A. supplying high pressure oil into a hydraulic motor
B. supplying high temperature air into the cylinder
C. supplying high pressure air into the cylinder
D. electrical igniting
[单项选择]The starting of a marine diesel engine is generally carried out with the assistance of （）.
A. compressed air
B. electricity
C. hydraulic oil
D. compressing air
[单项选择]The marine diesel engine is a type of diesel engine used on ships The （） of its operation is not very difficult to understand.
A. principle
B. principal
C. cause
D. case
[单项选择]In a marine diesel engine the oil sump is （）.
A. just below the crankcase
B. the oil cup for the exhaust valve
C. the pan for collecting drain fuel oil
D. oil circulating pump
[单项选择]For an ordinary four-stroke engine the inlet valves open （）
A. after TDC
B. before TDC
C. after BDC
D. before BDC
[单项选择]For an ordinary four-stroke engine the exhaust valves open （）.
A. after TDC
B. before TDC
C. after BDC
D. before BDC
[单项选择]In an ordinary four-stroke engine the exhaust valves open （）
A. after TDC
B. before TDC
C. after BDC
D. before BDC
[单项选择]For an ordinary four-stroke diesel engine the exhaust valves close （）.
A. after TDC
B. before TDC
C. after BDC
D. before BDC
[单项选择]Immediately after any diesel engine is started, the engineer should check the （）
A. crankcase pressure
B. lube oil pressure
C. saltwater pressure
D. exhaust temperature
[单项选择]When a marine surveyor is employed to assist in the move of a mobile offshore drilling unit，he（）.
A. becomes responsible for the safe movement of the rig
B. relieves the Offshore Installation Manager at the moment the rig is free from the bottom
C. must be designated as the person in charge of the rig
D. is a specialist who is hired to provide advice and guidance on aspects of the move
[单项选择]In the construction of a diesel engine, what is the purpose of end plates?（）
A. To provide accessibility to the cylinder liners
B. To add stability to the engine block
C. To add rigidity to the block and a surface for attaching other parts
D. To make a surface for the base
[单项选择]Engine operating conditions may be indicated by the color of the exhaust smoke.Black smoke could indicate（）
A. an insufficient speed droop setting
B. an overloaded engine
C. clogged drain holes in the oil control rings
D. complete combustion
