A.recirculating
B.total loss
C.cooling
D.refrigeration
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A.a setting tank
B.a service tank
C.a head tank
D.an expansion joint
The working cycle of a four-stroke diesel engine consists of four events:（）
(1) compression
(2) expansion
(3) exhaust
(4) suctionThe correct sequence is
A.(4)-(2)-(3)-(1)
B.(4)-(3)-(1)-(2)
C.(4)-(3)-(2)-(1)
D.(4)-(1)-(2)-(3)
A.precautions
B.rpm
C.indicator cards
D.B and C
A.repair list
B.spare parts order list
C.price list
D.bunker list
A.correct maneuvering
B.wear
C.working efficiency
D.maintenance
最新試題
A diesel engine piston ring face is in direct contact with the （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
Lube oil cannot be efficiently filtered if its （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
The highest pressure in a diesel engine cylinder normally occurs （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
To determine if the lube oil filter elements need changing, （）.
In using reduction gears to obtain efficient propeller speeds, （）.