A、aimed at the source of the flames
B、fogged above the equipment
C、shot off a flat surface onto the flames
D、used to shield against electrical shock
更多“When electrical equipment is involved in a fire，the stream of dry chemicals should be（）.”相关的问题
A、When it is a DC machine B、When it is an AC machine C、Any machine that operates on over 100 volts D、Only when working on wet steel plates
A、A.stop ventilation to the area B、B.stop the vessel C、C.secure electricity to the circuit D、D.apply CO2 to the fire
A、A.flush water over any burned area of the patient B、B.apply ointment to the burned areas on the patient C、C.get assistance to shut down electrical power in the area D、D.remove the patient from the vicinity of the live electrical equipment or wiring
A、prevent them from falling when the vessel rolls B、protect personnel from electrical shock C、increase their operating efficiency D、prevent unauthorized personnel from operating them
A、prevent them from falling when the vessel rolls B、protect personnel from electrical shock C、increase their operating efficiency D、prevent unauthorized personnal from operating them
A、secure the electric supply B、ventilate area to remove smoke C、start the fire pump and lead out hose D、apply foam
A、A.oxygen and explosion meter when it is used for detection of flare gases B、B.self-contained breathing apparatus，when used as protection from gas leaking from a refrigeration unit C、C.boots and gloves that are made of rubber or electrically non-conductive material，if used when repairing electrical equipment D、D.lifeline，if used by personnel entering a compartment which might be deficient of oxygen
A、A.provide safe electrical power connection to barge equipment B、B.keep the vessel from surging excessively C、C.prevent an accidental discharge of static electricity D、D.secure the cargo hose to a hatch when loading overall
A、A.Whether the fire is in machinery or passenger spaces B、B.Danger of shock to personnel C、C.The amount of toxic fumes created by the extinguisher D、D.Maintaining electrical power
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