更多"If fuel is burned from only the sta"的相关试题:
[单项选择]You are transferring fuel from the storage tanks to the day tanks by means of an electric fuel oil transfer pumpIf the pump motor catches fire, you would FIRST （）.
A. secure the fuel manifold
B. shut off power to the pump
C. shut off the power ventilation
D. spray water on the fire
[单项选择]The fuel from the bunker tanks must be treated by before entering the service tanks（）, from where the fuel enters（）
A. centrifugal separators; the engine cylinder
B. oily water separators; the engine cylinder
C. oily water separators; the fuel supply system
D. centrifuges; the fuel supply system
[单项选择]After fuel tanks have been topped off, which of the listed procedures should be followed next?（）
A. The pressure-vacuum relief valve should be reset
B. The tanks should be made seaworthy to prevent contamination
C. The tanks should be sounded to make sure the levels are not rising
D. The tanks should be marked with a bull stamp on the manifold filling valve
[单项选择]If two fuel service tanks are installed, the empty tank should be pumped up directly it is emptyWhat is the meaning of “directly” in the sentence above?（）
A. at once
B. as soon as
C. quickly
D. straight
[单项选择]Fuel oil day tanks for diesel engines must be checked and cleaned and cleaned at regular intervals in order to remove（）
A. sludge
B. water
C. micro-organism growth
D. all of the above
[单项选择]Why is it important for fuel oil tanks not to be topped off at the inner bottom level when loading on a cold day?（）
A. Increased viscosity of the product needs higher loading pressure, which increases the chances of a spill
B. Air pockets may cause the fuel to bubble out of the ullage hole
C. The temperature rise of the fuel will cause an overflow
D. Fueling valve may become stuck closed and cause the fuel oil to spill before the valve can be opened
[单项选择]Fuel oil tanks must be fitted with （） that can be closed rapidly and remotely in the event of an emergency such as a fire.
A. stop valves
B. non-return valves
C. quick closing valves
D. relief valves
[单项选择]Where should the tops of vents from gasoline tanks terminate?（）.
A. In open air
B. Inside cabins near the overhead
C. In the machinery space near the engine air intake
D. Underwater
[单项选择]The tops of vents from gasoline tanks should terminate（）.
A. in open air
B. inside cabins
C. in machinery space
D. underwater
[单项选择]Ballast water can only be（）in cargo tanks in exceptional cases where the particular character of the operation of an oil tanker renders it necessary to carry ballast water in excess of the quantity required，provided that such operation of the oil tanker falls under the category of exceptional cases as established by the Organization.
A. carried
B. contained
C. filled
D. stuffed
[单项选择]Bulkheads which from part of the tanks on a vessel are stiffened to withstand（）.
A. deck loads from above
B. dynamic forces while afloat
C. hydrostatic pressure
D. over-pressurization
[单项选择]If fuel oil were being discharged from the waster outlet of a fuel oil disk type centrifuge, operated as separator, you should（）
A. remove the discharge ring
B. re-prime the purifier
C. the centrifuge to its proper speed
D. install an additional discharge ring
[单项选择]A distorted spray pattern from a fuel injector can cause a diesel engine to have （）
A. higher firing pressure
B. more power output
C. lower fuel pressure
D. less power output
[单项选择]Water in the fuel can prevent the engine from starting, prevent it from developing full power, or （）
A. run at an irregular speed
B. create high lube oil temperature
C. cause the engine to over-speed
D. cause blue smoke in the exhaust
[单项选择]Fuel injection systems meter fuel, atomize fuel, and （）.
A. create turbulence in the combustion chamber
B. aid in completing cylinder scavenging
C. inject fuel at the proper time
D. minimize fuel penetration into the cylinder
[单项选择]Fuel oil is pumped by means of （） from the bunker tanks.
A. a transfer pump
B. a bilge pump
C. a service pump
D. a vacuum pump
[单项选择]Machinery driving fuel oil transfer and fuel oil service pumps must be fitted with a remote means of stopping the machinery from （）.
A. within the space concerned
B. outside the space concerned
C. the throttle station
D. within the fire room
[单项选择]Fuel injectors used in heavy fuel oil systems are usually provided with cooling to reduce（）.
A. cold corrosion of the nozzles
B. fuel viscosity for better atomization
C. carbon accumulation on the nozzles
D. fuel detonation in the cylinders
[单项选择]During the fuel injection period, fuel pressure must exceed cylinder gas pressure to （）.
A. ensure penetration and distribution of the fuel in the combustion chamber
B. ensure the needle valve is flushed clean during each injection
C. prevent combustion gas blowback into the open needle valve
D. prevent reflected pressure waves when the needle valve closes
