单项选择题
A turbocharged, four-stroke/cycle diesel engine has a larger valve overlap than a naturally aspirated four-stroke/cycle diesel engine, in order to in crease the （）.
A.temperature of the exhaust gases
B.energy supplied to the turbocharger
C.air pressure to the intake manifold
D.purge of exhausted gases from the cylinders
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相关考题
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单项选择题
A change in the quality of fuel atomization by a diesel engine fuel injector would be caused by a/an （）
A.increase in engine speed
B.increase in cylinder turbulence
C.leaking needle valve
D.reduction in cylinder turbulence -
单项选择题
While maneuvering, you discover heavy smoke coming from the turbocharger casing, you should （）
A.check the air filter for dirt
B.check for an exhaust leak
C.check the cooling water temperature
D.notify the bridge that you are going to shut the engine down -
单项选择题
Operating a diesel engine under light loads and at low temperatures for an exhaust for an extended period can result in（）
A.formation of carbon on the intake and exhaust ports
B.high water jacket temperatures
C.overheated pistons and cylinders
D.an increase in lube oil viscosity due to fuel dilution
