Question

The four stroke cycle engine requires four strokes to produce one:

Select one:
a. power stroke
b. crankshaft revolution
c. piston stroke
d. reciprocating motion

Answer 1

The four-stroke cycle engine requires four strokes to complete one cycle, which includes the intake, compression, power, and exhaust strokes. The result of these four strokes is the production of a single power stroke.

Step-by-step explanation:

The student's question concerns the operation of a four-stroke cycle engine, which is an application of physics in engineering. Specifically, the student asks about what is produced by the four strokes of this type of engine. The four strokes present in this engine, which include the intake, compression, power, and exhaust, are necessary to complete one cycle that results in a single power stroke. Therefore, the correct answer to the student's question is that the four-stroke cycle engine requires four strokes to produce one power stroke.

Here's a brief explanation of each of the four strokes:

Intake Stroke: Air mixed with fuel is drawn into the cylinder.

Compression Stroke: The air-fuel mixture is compressed in a nearly adiabatic process.

Power Stroke: The mixture is ignited, converting chemical potential energy into thermal energy which causes the piston to move down.

Exhaust Stroke: Expelled hot gases make room for the next cycle.

The power stroke is where the actual work is done and energy is transferred from the chemical energy of the fuel into mechanical motion.