單項(xiàng)選擇題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


您可能感興趣的試卷

你可能感興趣的試題

1.單項(xiàng)選擇題Antares is found in what constellation?()

A.Scorpio
B.Corvus
C.Libra
D.Corona Borealis

2.單項(xiàng)選擇題An undocumented vessel with 10 people aboard and operating 25 miles off the seacoast must carry a survival craft of the().

A.inflatable buoyant apparatus type
B.buoyant apparatus type
C.life float type
D.Any of the above types are acceptable

3.單項(xiàng)選擇題An overtaking situation at night would be one in which one vessel sees which light(s) of a vessel ahead?()

A.Masthead lights and sidelights
B.One sidelight,the masthead lights and stern light
C.Both sidelights
D.Stern light

5.單項(xiàng)選擇題An isotherm is().

A.a line on a weather map connecting equal points of both temperature and pressure
B.an instrument that measures the climatological effects of temperature
C.a line connecting points of equal barometric pressure on a weather map
D.a line connecting points of equal temperature on a weather map