A.Cooling ability
B.Leaves no residue
C.Penetrating power
D.Nonconductivity
您可能感興趣的試卷
你可能感興趣的試題
A.prevent the generation of flammable or combustible gas in tanks
B.blow out cargo lines to prevent gas concentrations
C.dilute tank atmospheres to keep gas concentrations below the lower explosive limit
D.prevent fires in the pumproom by continually displacing flammable vapors
A.eliminating sparks and fire in the vicinity of cargo tanks
B.removing all hydrocarbon gases from the cargo tanks
C.blanketing cargo tanks with inert foam
D.reducing the oxygen concentration below levels necessary for combustion
A.stop ventilation
B.stop the vessel
C.de-energize the circuit
D.apply water to extinguish the fire
A.carbon dioxide
B.Halon 1301
C.dry chemical
D.water fog
A.Carbon dioxide
B.Dry chemical
C.Foam
D.All of the above
最新試題
A vessel is constructed with a steel hull and an aluminum superstructure. Which statement is TRUE?（）
After extinguishing a fire with CO2，it is advisable to（）.
At night while the ship is tied up to the dock，a fire breaks out in a cargo hatch. After sounding the alarm，what should the person on watch do?（）
An important step in fighting any electrical fire is to（）.
A ship helicopter landing deck on which fueling operations are conducted must have a fire protection system that is capable of discharging at 100 psi pressure a foam spray of at least（）.
Any extinguishing agent used on a Class C fire must have which important property?（）
A spanner is a（）.
A squeeze-grip type carbon dioxide portable fire extinguisher has been partially discharged. It should be（）.
An effective method for moving patients with spinal injuries onto a spine board is known as the（）.
An aircraft has indicated that he wants you to change course and follow him. You cannot comply because of an emergency on board. Which signal should you make?（）