按照我国有关规定,大型船舶燃油预热的热源应为()。
A.过热蒸汽
B.饱和蒸汽
C.电加热器
D.缸套冷却水
第1题
在柴油机喷油泵柱塞密封性的检查中,当压力达到规定数值时应该()。
A.放松泵油手柄
B.按住泵油手柄
C.摇动泵油手柄
D.压下泵油手柄
第2题
The ISPS Code is a part of ____.
A.SOLAS
B.MARPOL
C.STCW
D.Ballast Water convention
第3题
rings to_.
A.jam in the most worn part of the cylinder when the rings expand
B.break in the most worn part of the cylinder when the rings expand
C.wear eccentrically on the side opposite the end gap
D.overheat and jam at the top center on the combustion stroke
第4题
___.
A.diode
B.transformer
C.transistor
D.rheostat
第5题
e may be actuated by _____.
A.direct action of cam shaft
B.compressed air pressure
C.hydraulic “push rods”
D.direct action of the main piston moving down
第6题
船用空压机启动时一般用________方法卸载。
A.顶开吸气阀
B.泄放排气
C.截断进气
D.A或B
第7题
A dazzling white burner flame in the boiler furnace indicates _____.
A.no combustion
B.deposits in the fuel
C.excessive air in the fuel
D.cold fuel oil
第8题
Each journal and pin should be examined for _____ and grooving.
A.bridges
B.recesses
C.rears
D.ridging
第9题
e sludge for dealing with is too much IIIbefore stopping incinerator
A.I+II
B.I+III
C.II+III
D.I+II+III
第10题
sing large, low-speed, main propulsion, diesel engine?
A.Manually trip the over-speed device
B.Interrupt the fuel flow to the engine
C.Disengage the safety interlock
D.Slide the camshaft to the neutral position
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