單項選擇題Heavy fuel oils generally have an upper average ash content of 0~1% by weight.Which of the following conditions could be expected if the ash content increase above this amount?()

A.Glazing of the cylinder liners
B.Increase valve wear
C.Excessive oil pumping
D.Increase fuel consumption


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1.單項選擇題The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated ()

A.for atomizing
B.for centrifuging
C.in a storage tank
D.in the re-circulating line

2.單項選擇題The temperature of the fuel oil received during bunkering operation is critical in determining the ()

A.expansion space to leave in a tank
B.flash point at which the fuel will burn
C.temperature to which the fuel must be heated
D.rate at which the fuel can be pumped during transfer operations

4.單項選擇題Bunkering shall be terminated if there is a ()

A.severe electrical storm
B.fire on the pier
C.fire on the ship
D.any of the above