海船船员考试
单选题The diesel engine consumes considerably less fuel than the steam engine for equal output, （） enables a motor-ship to load more cargo.A whyB whichC in whichD on which
题目
why
which
in which
on which
相似问题和答案
第1题：
What is an advantage of diesel over steam turbine propulsion ________．
A.Less fuel consumption per SHP
B.Diesel fuel costs less than bunker C or its equivalent
C.Less routine maintenance required
D.Less weight per SHP
第2题：
improper adjustment
contaminated fuel
kinked fuel lines
excessive engine vibration
第3题：
If the diesel engine fuel injection timing is changed to delay the start of injection until the pistons are at top dead center, the engine will_________.
A.backfire through the air intakes
B.develop less power under load
C.have high firing pressures
D.lift its cylinder relief valves
第4题：
decreased fuel consumption per brake horsepower
more complete cylinder scavenging
extended valve life
carbon formation on combustion chamber surfaces
第5题：
Quantity of fuel injected tends to be decreased
Quantity of fuel injected will always be increased
Start of injection tends to be advanced
Duration of injection will always greater
第6题：
quantity of fuel injected is decreased
quantity of fuel injected will always be increased
start of injection is advanced
duration of injection will always be greater
第7题：
pressure
temperature
viscosity
density
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：
increasing the quantity of starting air
increasing the lube oil pressure
heating the engine fuel supply
heating the engine coolant
第10题：
they are more heavily built
the fuel used is less volatile
they can be easily reversed
they operate at a lower speed