A.engine operating speed
B.an air manifold
C.a hydraulic distributor
D.individual cams and valve gear
您可能感兴趣的试卷
你可能感兴趣的试题
A.the air start valve timing gears and rods
B.a cylinder check valve
C.individual cams and valve gear
D.an air manifold poppet valve
A.degree of cylinder air turbulence
B.firing pressure in the engine
C.quality of fuel to be injected
D.duration of the ignition delay period
A.laying a straight edge across the crank webs at the crankpin and measuring the distance to the crankpin in two places
B.measuring the crank drop on either side of each crank throw while the crankshaft is slowly rotated through one revolution
C.rotating the crankshaft through one revolution, pausing each 90oof rotation to measure bearing clearances, top and bottom
D.taking micrometer reading between the crank cheeks opposite the crankpin every 90°of crank angle rotation
A.electronic ignition system
B.compression of air by the piston
C.friction in the fuel injector
D.fuel oil bearing system
A.placed as near the crankpin axis as possible
B.removed each time the crankshaft is repositioned
C.left in place for all four readings
D.reset to zero for all four readings
A.increase engine power
B.increase engine load
C.decrease engine power
D.improve fuel economy
A.compressibility of the fuel
B.high fuel oil supply flow
C.scored plunger and barrel packing
D.excessive air turbulence
A.a restricted air intake
B.a clogged connecting rod oil passage
C.incorrect connecting rod alignment
D.high cylinder firing temperatures
A.a higher cetane number of fuel oil
B.the diesel fuel used having a high viscosity
C.mechanical rigidity in the lube pump mechanism
D.a decrease rigidity in the fuel pump delivery pressure
A.Higher compression ratios create higher temperature
B.Higher temperatures create higher compression ratios
C.low temperatures create higher compression ratios
D.Higher compression ratios create low temperatures
最新试题
Which one is NOT the ‘clear grounds’ for a more detailed inspection?()
The shipboard oil pollution emergency plan will be invalid after ()
If two A.C.generators are to be operated in parallel, the load is distributed evenly by()
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a()
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is()
If separating effect is not good, which measure should be taken ()
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?()
The ISPS Code consists of a mandatory section-Part A, which shows()
()connectors hold best if a wire is accidentally pulled or a connection becomes loose.
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?()