更多"The tops of vents from gasoline tan"的相关试题:
[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]Gasoline fuel tank vents should terminate（）.
A. in the engine compartment
B. in the fuel tank space
C. above or outside the hull
D. at the most convenient location
[单项选择]Gasoline tanks should be filled（）.
A. to the top to expel all vapors from the tanks
B. to the top so the operator is certain how much fuel he has aboard
C. with only sufficient fuel for the planned trip so excess gasoline is not carried
D. to near the top with some space allowed for gasoline expansion
[单项选择]Vents are led from the engine to head tank （） from the cooling water.
A. for the release of air
B. for the release of water
C. in order to the release of air
D. because the release of air
[单项选择]Vents are led from the engine to the head tank for the release of （） from the cooling water.
A. air
B. heat
C. sludge
D. steam
[单项选择]The nozzle of a gasoline hose or can should be kept（）.
A. in contact with the fill opening to guard against static spark
B. from making contact with the fill opening to guard against static spark
C. in contact with the fill opening to allow proper venting
D. None of the above
[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]If fuel is burned from only the starboard tanks, the ship will （）.
A. go down by the head
B. list to starboard
C. trim by the stem
D. list to port
[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]Standby or emergency diesel generator day tanks should always be kept full to reduce the possibility of（）
A. sediment contamination
B. fuel filter clogging
C. moisture formation
D. inadequate transfer pump suction head
[单项选择]Fuel oil tank vents are fitted with a screen which will stop（）.
A. oil from flowing out of the tank vent
B. air from entering the tank vent
C. vapors from leaving the tank vent
D. flames on deck from entering the tank vent
[单项选择]Those ship’s tanks that are particularly important for trimming the ship are the（）.
A. domestics
B. settlers
C. deeps
D. peaks
[单项选择]You are cleaning the tanks after carrying a cargo of crude oil. Which statement is TRUE? （）.
A. Washing water should be recirculated if possible because it has the same electric potential as the cargo tank being cleaned
B. The hoses to portable cleaning machines should be disconnected before the machines are removed from the tank
C. The principal hazard with steaming cargo tanks is raising the ambient temperature above the flame point of the cargo residue
D. Steam cleaning and water washing are both capable of generating electrostatic charges within a tank
[单项选择]The existence of liquids in partially full tanks or compartments of a ship causes a virtual rise in the height of the（）.
A. metacenter
B. center of buoyancy
C. center of flotation
D. center of gravity
[单项选择]Petroleum cargo tanks should not be topped off at deck level when loading on a cold day because（）.
A. a subsequent temperature rise will cause the cargo to overflow
B. air pockets may cause the cargo to bubble out of the ullage hole
C. the increased viscosity of the product requires higher loading pressure which increases the chances of a spill
D. the tank valve may be stiff and a spill will occur before the valve can be closed
[单项选择]Regulations require that cargo tanks carrying grades D or E liquids on tank barges be vented with（）.
A. gooseneck vents and flame screens
B. pressure-vacuum relief valves
C. branch vent lines and a vent header
D. forced draft blowers
