輪機(jī)英語章節(jié)練習(xí)(2019.09.13)

單項(xiàng)選擇題
According to the international regulations concerning the prevention of pollution of sea areas from ships, the disposal into the sea of all plastics is （）.
A.welcome
B.admitted in some special sea areas
C.prohibited
D.acceptable
單項(xiàng)選擇題
When finish work on the oil separator, you should（）firstly.
A.cut off the power
B.cut off the oil inlet
C.open guide water valve
D.close oil outlet value
單項(xiàng)選擇題
In comparing engines of equal horsepower, higher exhaust gas temperatures occur in a/an（）
A.opposed-piston engine
B.double-acting engine
C.two-stroke/cycle engine
D.four-stroke/cycle engine
單項(xiàng)選擇題
If fuel tank levels are found to have increased after a grounding, you should suspect （）.
A.a damaged pneumercator line
B.a puncture, crack, or hole in the skin of the vessel
C.improper record keeping of fuel transfer activities
D.contamination of the contaminated steam supply system
單項(xiàng)選擇題
On a multistage flash-type evaporator, the flash chamber is （）
A.combined as part of the salt water feed heater
B.the open area above the brine levels in the first and second stages
C.combined as part of the distillate cooler
D.another term used to describe the vapor feed heater
單項(xiàng)選擇題
（）, we continued lifting out the pistons.
A.Late as it was
B.As it was late
C.Since it was late
D.Because of its late
單項(xiàng)選擇題
Before a marine diesel engine is started the cylinders and pistons must be （）.
A.cooled to appropriate temperature
B.warmed up gradually to appropriate temperature
C.opened up and renewed
D.ground and polished
單項(xiàng)選擇題
The （） of the lubricant should be sufficient to hold the film together, but it should allow the lubricant to flow easily.
A.specific gravity
B.viscosity
C.acid value
D.calorific value
單項(xiàng)選擇題
Current measuring instruments must always be connected in （）
A.series with a circuit
B.parallel with a circuit
C.series-parallel with a circuit
D.delta with the shunt
單項(xiàng)選擇題
An efficient seal between the cylinder block and cylinder heads on many diesel engines is obtained with（）
A.graphite packing
B.sealing compound
C.lubricating oil
D.gaskets

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