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輪機(jī)英語章節(jié)練習(xí)(2019.08.18)

單項(xiàng)選擇題
Usually（） handles the majority of the correspondence and negotiation needed during transactions of stores and spare parts in the engine department.
A.the chief engineer
B.the second engineer
C.the third engineer
D.the fourth engineer
單項(xiàng)選擇題
The （） is used for hauling in or letting out the wires or ropes.
A.windlass
B.anchor capstan
C.turning gear
D.winch barrel
單項(xiàng)選擇題
The valve that prevents water from backing out of the boiler into the feed line is the（）.
A.bottom-blow valve
B.skin valve
C.feed-check valve
D.feed-stop valve
單項(xiàng)選擇題
When deciding the composition of the engineering watch, which may include appropriately qualified ratings, following criteria shall be taken into account（）Ⅰ.the type of shipⅡ.the type and condition of the machineryⅢ.the safety of life, ship, cargo and portⅣ.the observance of international, national and local regulations
A.Ⅰ+Ⅱ
B.Ⅱ+Ⅲ
C.Ⅱ+Ⅲ+Ⅳ
D.Ⅰ+Ⅱ+Ⅲ+Ⅳ
單項(xiàng)選擇題
The ignition quality of diesel fuel is indicated by its（）
A.octane number
B.cetane number
C.viscosity in Saybolt seconds
D.air fuel ratio
單項(xiàng)選擇題
Hydraulic machinery failures are commonly caused by contamination of the hydraulic fluid and （）.
A.fluid friction
B.fluid turbulence
C.component misalignment
D.pressure surges
單項(xiàng)選擇題
A refrigerant with oil in solution has a （）.
A.higher boiling temperature for a given pressure than does a pure refrigerant
B.lower boiling temperature for a given pressure than does a pure refrigerant
C.boiling pressure equal to that of a pure refrigerant at a given pressure
D.boiling point will not be affected by entrained oil
單項(xiàng)選擇題
The designed （） is 20 tons per day, but the fresh water generator can only distil 15 tons at present.
A.displacement
B.weight
C.power
D.capacity
單項(xiàng)選擇題
Some diesel engines are fitted with a thermometer in the cooling water outlet from each cylinderIf the cooling water temperature from all cylinders begins to rise above normal, you should suspect （）
A.increase blow-by in all cylinders
B.incomplete combustion in all cylinder
C.overloading in all cylinders
D.insufficient fuel delivery to all cylinders
單項(xiàng)選擇題
Some vessels are equipped with a water lubricated stern robeWhen at sea, operating under normal conditions, the water service valve from the ships saltwater system to the bearing should be （）.
A.closed, and no leakage permitted across the shaft packing
B.closed, and only slight leakage permitted across the shaft packing
C.open, and no leakage permitted across the shaft packing
D.open, and only slight leakage permitted across the shaft packing

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