Question

During which stage of engine operation does the burning mixture of air and fuel force the piston downward?

a. Compression
b. Power
c. TDC
d. Ignition

Answer 1

b. Power. stage of operation

Answer 2

Answer: (b) Power.

Step-by-step explanation: Engine operation takes place in a number of stages, such as Intake, compression, combustion and Exhaust. In the stage of combustion (also known as Power), the hot burning mixture of fuel and air is ignited by heat generated due to high compression and so forcefully return the piston downwards.

Thus, the correct option is (b) Power.