更多"The preferred agent used in fightin"的相关试题:
[单项选择]Which fire fighting agent has the greatest capacity for absorbing heat?（）
A. water
B. dry chemical
C. foam
D. CO2
[单项选择]Carbon dioxide as a fire fighting agent has which advantage over other agents? （）
A. It causes minimal damage
B. It is safer for personnel
C. It is cheaper
D. It is most effective on a per unit basis
[单项选择]Any extinguishing agent used on a Class C fire must have which important property?（）
A. Cooling ability
B. Leaves no residue
C. Penetrating power
D. Nonconductivity
[单项选择]Any extinguishing agent used on a Class “C” fire must have which important property? （）
A. Cooling ability
B. Leaves no residue
C. Penetrating power
D. Nonconductivity
[单项选择]Which fire extinguishing agent can NOT be used on an ethylenediamine?（）
A. Water foam
B. Dry chemical powder
C. Water fog
D. Alcohol foam
[单项选择]Preferred channel buoys indicate the preferred channel to transit by（）.
A. odd or even numbers
B. the color of their top band
C. the location of the buoy in the channel junction
D. the buoy's light rhythms
[单项选择]Each drilling unit equipped with helicopter fuel storage tanks must have the tanks installed as far as practicable from the（）.
A. landing area and sources of vapor ignition
B. main deck
C. engine room
D. drill floor
[单项选择]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（）.
A. 30 gallons per minute
B. 40 gallons per minute
C. 50 gallons per minute
D. 60 gallons per minute
[单项选择]When evacuating a seaman by helicopter lift，which course should the ship take?（）
A. Downwind so that the apparent wind is close to nil
B. A course that will keep a free flow of air，clear of smoke，over the hoist area
C. A course that will have the hoist area in the lee of the superstructure
D. With the wind dead ahead because the helicopter is more maneuverable when going into the wind
[单项选择]If，during helicopter refueling operations，fuel is spilled on clothing，the person should first（）.
A. see the medic immediately
B. spray himself with foam or CO2
C. complete his task and then see the medic
D. remove the clothing and wash
[单项选择]How must each storage tank for helicopter fuel on a ship be marked?（）
A. DANGER - KEEP AWAY
B. DANGER - EXPLOSIVE VAPORS
C. DANGER - NO SMOKING
D. DANGER - FLAMMABLE LIQUID
[单项选择]The helicopter deck of a ship must be marked with the units identification，appropriate aiming circles，and a continuous line on the perimeter which is（）.
A. 8 inches wide
B. 16 inches wide
C. 24 inches wide
D. 32 inches wide
[单项选择]A helicopter making a round trip from a helideck with refueling capabilities to an unmanned platform will take 45 minutes each way. The helicopter should be carrying enough fuel to last（）.
A. 45 minutes
B. 1 hour and 15 minutes
C. 1 hour and 30 minutes
D. 2 hours
