A.failure of the fuel pumps
B.starting air pressure too low
C.stop valve in air line closed
D.the turning gear still engaged
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A.low compression of the fuel pumps
B.incorrect timing of fuel pumps
C.the starting air valves stuck
D.air-locks in fuel oil pipeline
A.must to stand inoperative
B.has to stand inoperative
C.must be stood idle
D.will stand idle
A.repaired
B.replaced
C.replenished
D.repeated
A.viscosity
B.flash point
C.acid value
D.temperature
A.lubricant
B.coolant
C.combustion product
D.second refrigerant
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