海船船员考试
单选题The process to remove exhaust gases by blowing in fresh air is called （）.A chargingB superchargingC startingD scavenging
题目
charging
supercharging
starting
scavenging
参考答案和解析
相似问题和答案
第1题：
downwards；upwards
upwards；downwards
downwards；downwards
upwards；upwards
第2题：
are made of
are made from
make use of
are used to
第3题：
Exhaust gases are generally removed from the cylinders of a two-stroke/cycle diesel engine by
A.natural aspiration
B.masked intake valves
C.air ceils
D.scavenging air
第4题：
blows out the exhaust gases
supplies oxygen for combustion
cools the valves and cylinder walls
all of the above
第5题：
the suction
the compression
the removal
the deliver
第6题：
natural aspiration
masked intake valves
air cells
scavenging air
第7题：
pumping action of the piston
pressure of the fuel charge
vacuum developed in the manifold
pressure of the fresh air charge
第8题：
A two stroke diesel engine exhaust temperature will be lower than a four stroke diesel engine of the same displacement because the _____. ① MEP is lower and the scavenging air is cooling the exhaust gases ② valve overlap in a four stroke
A.①
B.②
C.① and ②
D.Neither ① nor ② is correct
第9题：
Gas exchange
Charging
Scavenging
Supercharging
第10题：
direction of air flow within the cylinder
sequence of port opening
method of opening exhaust ports
volume of air admitted to the cylinder