1. The sketch below is a component of an air-cooled engine.
(a) (i) Identify the sketch.
(ii) Identify the parts labeled P,Q,R and S
(a) State
three advantages of an air-cooled engine over the water-cooled type.
(b) State why multi cylinder in-line engines are not commonly air-cooled.
(c) State the purpose of a thermostat in water-cooled engines.