更多"The tendency of a flammable liquid "的相关试题:
[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]The volatility of a liquid is the tendency of a liquid to （）.
A. ignite
B. explode
C. asphyxiate
D. vaporize
[单项选择]When flammable liquids are handled in a compartment on a vessel，the ventilation for that area should be（）.
A. operated continuously while vapors may be present
B. operated intermittently to remove vapors
C. available on standby for immediate use
D. shut down if an explosive mixture is present
[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]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]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 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]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]What type of liquid is used in the liquid P/V breaker（）.
A. Hydraulic oil
B. Water-antifreeze mixture
C. Distilled water
D. Oil from the cargo
[单项选择]A condition that can increase the foaming tendency of lube oil is （）
A. excessively high oil temperatures
B. water or moisture contamination
C. fuel dilution
D. life its cylinder relief vales
[单项选择]The process during which liquid containing a reasonable amount of sensible heat at a particular pressure immediately changes into steam after admitted to a chamber at a lower pressure is called （）.
A. boiling off
B. flash evaporation
C. condensation
D. none of the above
[单项选择]The tendency of a vessel to return to its original trim after being inclined by an external force is（）.
A. equilibrium
B. buoyancy
C. transverse stability
D. longitudinal stability
[单项选择]The tendency for lubricating oil to thin out at high temperatures and thicken at low temperatures will be characterized by a （）.
A. low viscosity index
B. high viscosity index
C. high neutralization number
D. low demulsibility quality
[单项选择]The lowest temperature at which a liquid gives off enough vapor to ignite in the presence of an ignition source is called its （）.
A. boiling point
B. flash point
C. viscosity point
D. toxic point
[单项选择]The principal purpose of sub-cooling liquid refrigerant prior to its entering the expansion valve is to （）.
A. increase the refrigerating effect, by decreasing the amount of flash gas
B. allow the refrigerant to enter the throttling device in a saturated condition
C. increase the refrigerating effect by increasing the amount of flash gas
D. minimize the temperature drop of the liquid as it passes through the solenoid valve to the outlet side
[单项选择]Increasing the number of slack liquid tanks has the effect of raising the（）.
A. uncorrected KG
B. maximum allowed KG
C. virtual height of the center of gravity
D. metacentric height
