單項(xiàng)選擇題

The fire extinguishing action of CO₂ comes mostly from （）.

A.breaking the fire chemical chain reaction
B.smothering
C.cooling
D.isolating the heat from the fuel

你可能感興趣的試題

The amount of expansion space to be left in a fuel tank when fuel oil is being received, is determined by the （）.

A.quantity of fuel to be received
B.flash point of the fuel as it is received
C.fuel temperature as it is received
D.viscosity of the fuel being received

單項(xiàng)選擇題

If the overflow tank high-level alarm sounds while the fuel oil tanks are being topped off, the engineer should （）.

A.close the static leg filling valve
B.close the overflow tank falling valve
C.reduce the fuel oil pumping rate
D.stop the fuel oil pumping operation

The fire extinguishing action of CO2 comes mostly from （）.

你可能感興趣的試題

The amount of expansion space to be left in a fuel tank when fuel oil is being received, is determined by the （）.

If the overflow tank high-level alarm sounds while the fuel oil tanks are being topped off, the engineer should （）.

The fire extinguishing action of CO₂ comes mostly from （）.