In an internal combustion engine, the gas vapor/air mixture enters the cylinder during the ____ stroke.
A)intake
B)compression
C)power
D)exhaust
Have a go at answering these and you might get a response. We are not here to do the homework for you.
To determine the correct answer, let's consider the four strokes of an internal combustion engine: intake, compression, power, and exhaust.
During the intake stroke, the intake valve opens, allowing the gas vapor/air mixture to flow into the cylinder. This stroke is responsible for drawing in the fuel-air mixture from the intake manifold or carburetor.
During the compression stroke, both intake and exhaust valves are closed, and the piston moves upward, compressing the fuel-air mixture. This compression increases the pressure and temperature of the mixture, preparing it for combustion.
During the power stroke, the spark plug ignites the compressed mixture, causing a rapid expansion of the gases. This expansion forces the piston downward, generating the power that is ultimately transferred to the crankshaft.
Finally, during the exhaust stroke, the exhaust valve opens, and the piston moves upward, pushing the burnt gases out of the combustion chamber and into the exhaust system.
Given this information, we can conclude that the gas vapor/air mixture enters the cylinder during the intake stroke (option A).