问题：
[单选] As to the low speed diesel engine, if you want to change the coolant flow for a certain cylinder, you can regulate （）.
the inlet valve。the outlet valve。both the inlet valve and the outlet valve。the pump inlet valve。
问题：
[单选] For Vee-form engines, （） is shaped to given two slopping surface on which （） are placed at the correct relative angle to each other.
the bottom of the column；the cylinder blocks。the top of the column；the cylinder heads。the top of the column；the cylinder blocks。the bottom of the column；the cylinder head。
问题：
[单选] The fuel oil pressure and forced draught pressure should be matched to ensure good combustion with a full steady flameIn the sentence the word “match” means （）
join with。mix。be equal to。be constant。
问题：
[单选] If you don’t understand the meaning of the technical terms of the diesel engine, you can （） the dictionary of machine technology.
look for。find out。consult。read。
问题：
[单选] The fuel injection system is very important, so any trouble of it will （） the operation of the main engine.
be affected。affect。be effected。effect。
问题：
[单选] The quality of the fuel oil and lube oil （）, Im afraid.
has much to do with the operation of the engine and its life。have much to do with the operation of the engine and its life。has much doing with the operation of the engine and its life。have much doing with the operation of the engine and its life。
问题：
[单选] （）, so they are widely used on board ship nowadays.
Diesel engines have more advantages in comparison with gasoline engines。Diesel engines have more advantages in comparison to gasoline engines。Gasoline engines have more advantages in comparison with diesel engines。Gasoline engines have more advantages in comparison to diesel engine。
问题：
[单选] Since the engine doesn’t work well, you’d better （） as soon as possible.
reduce its speed。find out its trouble。eliminate its trouble。all the above。
问题：
[单选] A diesel engine burns （） a gasoline engine of the same capacity in the same period of time.
as much fuel as。less fuel than。less fuel as。more fuel tha。
问题：
[单选] After the ship is out of the harbour and in “Full Speed”, well change （）.
to fuel oil instead of diesel oil。for fuel oil instead of diesel oil。to diesel oil into fuel oil。for diesel oil into fuel oil。
