海船船员考试
单选题In comparing engines of equal horsepower, higher exhaust gas temperatures occur in a/an（）A opposed-piston engineB double-acting engineC two-stroke/cycle engineD four-stroke/cycle engine
题目
opposed-piston engine
double-acting engine
two-stroke/cycle engine
four-stroke/cycle engine
相似问题和答案
第1题：
Exhaust gas pyrometers are useful for
A.detecting faulty combustion in individual cylinders
B.adjusting fuel racks to maintain equal loading between cylinders
C.adjusting the load limit setting of the governor at idle conditions
D.calculating engine horsepower
第2题：
Which method is used to supply inert gas from a flue gas system to the cargo tanks?
A.Exhaust gas pressure from the stack
B.High capacity fan
C.Inert gas compressor
D.Natural aspiration
第3题：
The effect that exhaust gas recirculation can reduce NOX formation is partly due to a reduction of the()concentration in the combustion zone and partly due to the content of water and carbon dioxide in the exhaust gas.
A.Oxygen
B.Nitrogen
C.Sulphur
D.Freon
第4题：
scavenging
starting
cooling
blowing
第5题：
bypass exhaust gas at high loads to prevent excessive back pressure
bypass a portion of the exhaust gas at peak loads for better efficiency
recycle exhaust gas to the turbocharger
minimize moisture condensation in the boiler gas passages at low loads
第6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7题：
reduce heat radiation to the engine room
aid in preventing turbocharger overheating
condense and drain moisture from exhaust gases
dampen exhaust gas pulsations in the manifold
第8题：
By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine The device most commonly used is a
A.tachometer
B.pyrometer
C.dynamometer
D.calorimeter
第9题：
passing the exhaust through long head pipes
diffusing exhaust vibrations through activated carbon baffles
increasing the exhaust gas velocity
reducing the exhaust gas velocity
第10题：
changing the direction of exhaust gas flow
increasing the exhaust gas velocity
changing the exhaust gas weight
increasing the exhaust gas static pressure