Infinitif Il est recommandé de bien s’ échauffer avant l’effort. A: se concentrer B: se doper C: s’entraner D: s’exciter

Which one is TRUE in the following descriptions about the ignition system of CFM56-3 engine? ( ) A: There is no need to provide cooling air around the ignition leads to decrease temperature B: The Low-energy exciter output is 1 spark per second, 1 joules per spark. C: Only need one gasket controls the depth the igniter plugs go into the combustion chamber. D: Do not apply grease to the threads on the ignition lead end of the igniter plug.