更多"A foam-type portable fire extinguis"的相关试题:
[单项选择]A foam-type portable fire extinguisher is most useful in fighting a fire in（）.
A. generators
B. oil drums
C. the bridge controls
D. combustible metals
[单项选择]Foam-type portable fire extinguishers are most useful in combating fires involving（）.
A. solid materials such as wood or bales of fiber
B. inflammable liquids
C. electrical equipment
D. metallic solids
[单项选择]On a class B fire，which portable fire extinguisher would be the LEAST desirable?（）
A. Carbon dioxide
B. Water (stored pressure)
C. Dry chemical
D. Foam
[单项选择]Which portable fire extinguisher is normally recharged in a shore facility?（）
A. Dry chemical (cartridge-operated)
B. Water (cartridge-operated)
C. Water (pump tank)
D. Carbon dioxide
[单项选择]Each hand portable fire extinguisher must be marked with（）.
A. the name of the vessel on which it is located
B. the date that it was installed
C. the names of the individuals qualified to use it
D. an identification number
[单项选择]Which portable fire extinguisher should be used on a class C fire on board a vessel?（）
A. Carbon dioxide
B. Water (stored pressure)
C. Foam
D. Carbon tetrachloride
[单项选择]Each hand portable fire extinguisher on a ship must be marked with（）.
A. the name of the unit on which it is located
B. the date that it was installed on the unit
C. the names of the individuals qualified to use it
D. an identification number different from other extinguishers on the unit
[单项选择]A foam-type portable fire extinguisher would be most useful in combating a fire in（）.
A. solid materials such as wood or bales of fiber
B. flammable liquids
C. a piece of electrical equipment
D. combustible metallic solids
[单项选择]Foam-type portable fire extinguishers are more usefull in combating fires involving（）.
A. solid materials such as wood or bales of fiber
B. inflammable liquids
C. electrical equipment
D. metallic solids
[单项选择]A portable dry chemical fire extinguisher discharges by（）.
A. gravity when the extinguisher is turned upside down
B. pressure from a small CO2 cartridge on the extinguisher
C. air pressure from the hand pump attached to the extinguisher
D. pressure from the reaction when water is mixed with the chemical
[单项选择]A portable foam fire extinguisher is placed in operation by（）
A. turning it upside down
B. pressing the foam lever
C. squeezing the grip handle
D. opening the hose valve
[单项选择]On a class “B” fire，which portable fire extinguisher would be the LEAST desirable?（）
A. Carbon dioxide
B. Water (stored pressure)
C. Dry chemical
D. Foam
[单项选择]Portable fire extinguishers must be provided for the cargo tank area of an unmanned tank barge（）.
A. only when fully loaded
B. if one or more tanks are full
C. when transferring cargo
D. only when the barge is being towed
[单项选择]Which types of portable fire extinguishers are designed for use on electrical fires?（）
A. Dry chemical and carbon dioxide
B. Foam (stored pressure) and soda-acid
C. Carbon dioxide and foam (stored pressure)
D. Dry chemical and soda-acid
[单项选择]All portable fire extinguishers must be capable of being（）.
A. carried by hand to a fire
B. carried or rolled to a fire
C. recharged in the field
D. used on class "B" fires
