10:1
15:1
20:1
60:1
2-stroke engine
4-stroke petrol engine
4-stroke diesef engine
gas turbine.
varies as square root of the speed
Varies linearly to the speed
varies as square of the speed
varies as cube of the speed
increase first at fast rate and then slow
increase first at slow rate and then fast
decrease continuously
first increase, reach maximum and then decrease
in two phases
in three phases
in a single phase
in the form of air and water mixture