更多"The soda-acid portable extinguisher"的相关试题:
[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]All portable fine 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
[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
[单项选择]Portable carbon dioxide fire extinguishers should be sent ashore to be recharged （）.
A. when the remaining charge volume is less than 90 percent of the required VOLUME
B. at each inspection for certification
C. at each annual inspection
D. when the weight loss exceeds 10% of weight of charge
[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]Portable foam type fire extinguishers are most effective on（）.
A. mattress fires
B. oil fires
C. wood fires
D. All of the above
[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]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]Portable CO2 fire extinguishers should NOT be used to inert a space containing flammable liquids due to the danger of（）.
A. the CO2 being inhaled by personnel
B. reflash of burning liquids
C. vapor condensation on the extinguisher
D. the discharge causing a static spark
[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]Most pump manufacturers recommended that the discharge piping for centrifugal pumps be （）.
A. one size larger than the pump discharge nozzle
B. the same size as the pump discharge nozzle
C. one size smaller than the pump discharge nozzle
D. installed with a short radius elbow at the pump
[单项选择]When distilling salt water the cooling water discharging from the distiller is fed back to evaporator as feed water （）.
A. to cut down the amount of cooling water needed
B. to prevent an excess amount of cooling water from being discharged to the bilges
C. to supply hot water to the evaporator for more economical operation
D. None of the above is tree
[单项选择]You detect oil around your tank vessel while discharging. The first thing to do is（）.
A. try to find out where the oil is coming from
B. call the master
C. have the pumpman check the discharge piping
D. shut down operations
[单项选择]Where the Shipowner has accepted the port of discharge named by the Charterer，he must go there although it is not prospectively safe，and claim damages for injury（）the ship by reason of the port not being safe.
A. by
B. on
C. to
D. in
[单项选择]Both the Shipowner and the Charterer will be discharged from their obligations under the charter-party if it（）frustrated.
A. provides
B. becomes
C. contains
D. comes
