Visual inspection of chrome－plated piston compression rings reveals a black ring face at the position of the cylinder liner portsThis condition indicates a ring which .

The construction of the main propulsion engine lube oil sump should .A.have no plating joi

The need for insulation cleaning may be determined by _____.A.visual inspection for dirt a

What is the purpose of a striker plate （).A.Provides surface for applying force on machine

In general, the oil mist defectors include a base plate with air blast pumpThe function of

Where are the zinc plates located？ .A.saltwater side of the condenserB.refrigerant side of

It is out of the question that the inspect