higher torque but lower brake horsepower
lower torque but higher brake horsepower
higher torque and lower brake horsepower
lower torque and higher brake horsepower
第1题:
chromium plating piston rings
knurling the piston skirt
extended maximum power operation
applying load to a cold diesel engine
第2题:
a worn cylinder
broken piston rings
any of A and B
none of the above
第3题:
A sudden power loss from a turbocharged and after-cooled diesel engine is an indication of a/an
A.turbocharger malfunction or failure
B.crankcase exhauster overload
C.overload on the intercooler
D.obstruction in the engine cylinders
第4题:
greater than the average exhaust manifold pressure
less than the average exhaust manifold pressure
greater at the turbine wheel than at the impeller
greater at reduced engine speed
第5题:
discharge exhaust gases and smoke
furnish energy to the turbocharger
reduce engine room noise
all of the above
第6题:
power the after-coolers
power the turbocharger
reduce the cylinder scavenge effect
cool the turbocharger
第7题:
fuel knock
increased power
low compression pressure
high exhaust temperature
第8题:
The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually______.
A.greater than the average exhaust manifold pressure
B.less than the average exhaust manifold pressure
C.greater at the turbine wheel than at the impeller
D.greater at reduced engine speed
第9题:
valve guides
oil control rings
valve seats
compression rings
第10题:
increased engine back pressure
sulfuric acid corrosion
surface pitting of the turbocharger
moisture impingement on the turbocharger compressor blade