The following statement about working around the engine, which one is right ?(1.)The technician can go near the inlet and exhaust hazard areas when the engine is running. (2.)You must attach or remove any loose objects before you work around the engine.( 3.)You must wear cup-type ear protector near an engine in operation. (4.)The technician must use the engine entry corridors to go near an engine in operation.
A.(1),(2); B.(2),(3); C.(1),(2),(3) D.;(2),(3),(4);正确答案D
