firing pressure
exhaust temperature from a particular cylinder
cooling water temperature
compression pressure
第1题：
_______can cause oil flow from water outlet of the oil purifier.
A.Oil inlet valve opening too quickly
B.Oil temperature little higher than normal
C.Diameter of gravity disc too small
D.Viscosity of oil little lower than normal
第2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3题：
The reason why the market for large CDs has been active since 1961 may be that the yield is usually higher than Treasury bills.
A．Right
B．Wrong
C．Doesn't say
第4题：
the direct acting relief valve is used for controlling lower flows and pressure
the pilot operated relief valve is used for controlling higher flows and pressure
the pilot operated relief valve is used for controlling lower flows and pressure
the controlling accuracy of direct acting relief valve is worse than that of the pilot operated relief valve
第5题：
the inlet valve is open
the exhaust valve is open
both valves are close
both valves are open
第6题：
During the valve overlap period, the exhaust pressure of a turbocharged four-stroke/cycle diesel engine must be less than the intake manifold pressure to ensure ______.
A.effective cylinder scavenging and cooling
B.constant pressure from the turbochargers
C.cooler operation of the exhaust system
D.effective constant pressure for turbocharger operation
第7题：
a subsequent temperature rise will cause the cargo to overflow
air pockets may cause the cargo to bubble out of the ullage hole
the increased viscosity of the product requires higher loading pressure which increases the chances of a spill
the tank valve may be stiff and a spill will occur before the valve can be closed
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：
the inlet valve is open
the exhaust valve is open
both valves are closed
both valves are open
第10题：
lower than normal cylinder pressure and low exhaust temperature
lower than normal cylinder pressure and high exhaust temperature
higher than normal cylinder pressure and low exhaust temperature
higher than normal cylinder pressure and high exhaust temperature