A.renewed
B.welded
C.machined
D.chromium-plated
您可能感興趣的試卷
你可能感興趣的試題
A.film
B.cap
C.lacquer
D.shell
A.a gear
B.a cam
C.a rod
D.a miler
A.recirculating
B.total loss
C.cooling
D.refrigeration
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)
最新試題
A diesel engine piston ring face is in direct contact with the （）.
An automated diesel engine should normally shut down due to （）
A thrust bearing is used with a propulsion diesel engine to （）.
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
Maximum horsepower of a diesel engine is attained （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
The main purpose of the piston oil scraper rings is to （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
Proper filtering and straining of fuel oil is important because the （）.