ENGINES

Engine is a machine that converts energy into mechanical work. An engine may get its energy from any of a number of sources, including fuels, steam, and air or water under pressure.

Types of engine

1.Steam engine

a)Piston engine

b)steam turbine

2.Diesal engine

(a) the four-stroke cycle engine and (b) the two-stroke cycle engine.

3.Petrol Engime

a) number of piston strokes per cycle,
(b) type of compression,
(c) by the way they are cooled,
(d) valve arrangement,
(e) cylinder arrangement, and
(f) way they are supplied with air and fuel.

4.Rotary Engine

e