Technician A is correct. The crankshaft must revolve two times to complete one cycle, which as 4 strokes. One half revolution for each stroke. Intake, compression, combustion, exhaust = four strokes to complete a cycle. One half revolution for each stroke of the piston going up or down. Look at a diagram and you'll see this is pretty simple.
In a two-stroke cycle engine, the crankshaft completes one revolution to complete one thermodynamic cycle. This is because the two-stroke cycle combines both the intake and exhaust processes into a single crankshaft revolution, allowing for one power stroke for every crankshaft rotation. Thus, for each complete thermodynamic cycle, the crankshaft makes one full revolution.
The crankshaft makes two complete revolutions to complete one thermodynamic cycle. The crankshaft rotates 180 degrees during each stroke of the engine. Hence a total of two revolutions occur after completion of the four strokes. Chechout "www.howstuffworks.com " to see how crankshaft works.
The crankshaft completes two full rotations to complete one cycle of a four-stroke engine. In a four-stroke cycle, the engine goes through the intake, compression, power, and exhaust strokes, requiring two rotations of the crankshaft to complete this process. In contrast, a two-stroke engine completes one cycle with just one crankshaft rotation.
In a four-stroke engine, one complete cycle consists of four strokes: intake, compression, power, and exhaust. This cycle requires two complete revolutions of the crankshaft, which equals 720 degrees of crankshaft rotation. Therefore, 720 degrees of crankshaft rotation are needed to complete the four-stroke cycle.
In a 4-stroke cycle engine, two complete revolutions of the crankshaft are required to complete one cycle, which includes intake, compression, power, and exhaust strokes. Therefore, for each individual stroke (intake, compression, power, or exhaust), one rotation of the crankshaft corresponds to half of that duration. Thus, one stroke occurs for every 180 degrees of crankshaft rotation.
It takes two revolutions of the crankshaft to complete the cycle of a 4-stroke cycle engine. Each revolution includes the intake, compression, power, and exhaust strokes of the engine.
In a 4-stroke engine, one complete engine cycle consists of four strokes: intake, compression, power, and exhaust. This cycle requires two full rotations of the crankshaft, which equals 720 degrees of crankshaft rotation. Each stroke corresponds to 180 degrees of crankshaft movement, collectively completing the cycle.
2 revolutions
one rotation
it varies a lot
1st stroke, intake. 2nd stroke, compression. 3rd stroke, power. 4th stroke, exhaust. The 4 stroke cycle take 2 full revolutions of the crankshaft.