low exhaust temperature
loss of engine power
burned intake valves
engine racing
第1题:
The exhaust pipe must be gas tight throughout its entire length otherwise ______.
A.Bilge water may enter the exhaust pipe
B.Entry of air may cause vapor lock
C.Carbon monoxide may enter the interior of the vessel
D.The joint gaskets may be blown
第2题:
The oil control rings will seal improperly and wear rapidly
The piston will overheat due to insufficient lubrication
Excessive oil will remain on the cylinder wall
Light brown smoke will emanate from the engine exhaust
第3题:
A dry-type spark arrestor removes sparks from a diesel engine exhaust by ____.
A.increasing the linear velocity of the exhaust gases
B.changing directions of exhaust gas flow
C.decreasing the temperature of the exhaust gases
D.accelerating the exhaust gas through a reduced size orifice
第4题:
corrosion and grooving of exhaust valves
corrosion and gumming of the fuel injection pump
salt deposits in the exhaust manifold
slag deposits in the fuel injection equipment
第5题:
Improper fuel rack positioning
Lengthy opening of the exhaust valve
Excessively early injection timing
Extended light load operation
第6题:
第7题:
bilge water may enter the exhaust pipe
entry of air may cause vapor lock
carbon monoxide may enter the interior of the vessel
the joint gaskets may be blown
第8题:
Engine operating conditions may be indicated by the color of the exhaust smoke Black smoke could indicate .
A.an insufficient speed droop setting
B.an overloaded engine
C.clogged drain holes in the oil control rings
D.complete combustion
第9题:
insufficient fuel supply
faulty governor
high exhaust back pressure
all of the above may cause this problem
第10题:
clogged air filter
compression stroke
burned exhaust valves
all of the above