更多"When flammable liquids are handled "的相关试题:
[单项选择]Small quantities of flammable liquids needed at a work site should be（）.
A. used only under the supervision and direction of a ship's officer
B. tightly capped and stowed with other tools near the job site when securing at the end of the day
C. used only when a pressurized fire hose is laid out ready for immediate use
D. in a metal container with a tight cap
[单项选择]When a crankshaft has to be handled outside the engine, it should be carefully supported in a manner which will avoid （） high bending moments on it.
A. compressing
B. interposing
C. imposing
D. pounding
[单项选择]Fires in escaping flammable gas are quickly brought under control by（）
A. stopping the flow of gas
B. reducing the chemical chain reaction
C. increasing the oxygen supply
D. cooling below the autoignition point
[单项选择]Explosive and flammable gasses are most likely to be encountered on a vessel（）.
A. at any location
B. on the drill floor and liquid mud handling areas
C. in bulk storage tanks
D. in machinery spaces
[单项选择]A fire of escaping liquefied flammable gas is best extinguished by（）.
A. cooling the gas below the ignition point
B. cutting off the supply of oxygen
C. stopping the flow of gas
D. interrupting the chain reaction
[单项选择]The tendency of a flammable liquid to vaporize is indicated by its （）.
A. ignition temperature
B. flash point
C. flammable range
D. convection index
[单项选择]The explosive range of a mixture of flammable vapors is specified as a percentage of （）.
A. flammable vapor by volume in air
B. oxygen present to support combustion
C. the temperature of the flash point
D. the lower limit of explosibility of the mixture
[单项选择]A tank vessel transferring non-flammable hazardous cargo in bulk must display warning signs. These signs must（）.
A. be visible from both sides and from forward and aft
B. indicate NO SMOKING
C. be displayed only while transferring cargo and fast to a dock
D. use black lettering on a white background
[单项选择]Vapor given off by a flammable liquid will burn when ignited provided（）
A. the vapor and air mixture is too rich
B. it is mixed with certain proportions of air
C. the vapor is too little compared to the air
D. it is of heavy toxicity
[单项选择]If you have a liquefied flammable gas barge in tow，which is NOT required of you with respect to the barge and its cargo? （）
A. Make periodic inspections of bilges
B. Keep the barge under constant surveillance
C. Have a properly certificated tankerman or at least one licensed officer on board the towing vessel
D. Verify ullage readings
[单项选择]A centrifuge arranged to separate two liquids is known as （）.
A. an oily water separator
B. a purifier
C. a centrifugal compressor
D. a clarifier
[单项选择]Corrosive liquids and acids should have which kind of label?（）
A. Skull and crossbones
B. Yellow and white
C. Red and white
D. White and black
[单项选择]Corrosive liquids and acids should have what kind of label? （）
A. Skull and crossbones
B. Yellow
C. Red
D. White
[单项选择]Fueling activities（）waste liquids and vapor releases to air.
A. commence
B. generate
C. give
D. have
[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]Which of the following liquids can ordinarily be discharged overboard without being processed through an oily water separator?（）
A. Cargo tank ballast
B. Segregated ballast
C. Engine room bilges
D. Cargo pump room bilges
[单项选择]It should be ensured that only （） vapor is handled by the refrigeration compressor.
A. humidity
B. dry
C. steam
D. oil
[单项选择]When can routine communications be resumed when radio silence has been imposed?（）
A. After determining that the frequency or channel appears to be no longer in use
B. After determining that geographic distance from the distress situation will prohibit any other signal from interfering with emergency communications
C. Routine communications can resume after the Rescue Coordination Center transmits a message on the frequency or channel being used for emergency communications stating that such traffic has concluded
D. If，in the Master's opinion，communications on that frequency will interfere with emergency communications
