Question

which of the rotary engine strokes is shown in the image above?
a. intake stroke
b. compression stroke
c. ignition stroke
d. exhaust stroke

Explanation:

To determine the rotary engine stroke, we analyze each option:

• Intake stroke: In a rotary engine, the intake stroke involves the chamber expanding to draw in the air - fuel mixture. The image likely shows the intake phase where the intake port is open and the rotor is positioned to allow the mixture to enter, matching the characteristics of the intake stroke.
• Compression stroke: During compression, the chamber volume decreases to compress the mixture, which is not indicated here.
• Ignition stroke: Ignition is the combustion event, and the visual cues don't suggest combustion (like flame or pressure - related changes typical of ignition).
• Exhaust stroke: Exhaust involves expelling burned gases, and the image doesn't show exhaust - related features (like an open exhaust port or gas expulsion).

Answer:

a. Intake stroke