Loading & Transport第 26 / 80 题

What must you do with the engine before loading or unloading most hazardous materials?

a.Rev it to keep it warm
b.Turn off the engine unless it is needed to operate a pump
c.Leave it idling at all times
d.Disconnect the battery

解析

You should turn off the engine before loading or unloading hazardous materials unless the engine is needed to run a pump for a cargo tank. A running engine is an ignition source and safety risk. Set the parking brake and chock the wheels while working.

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