The intake stroke of a positive displacement compressor is most similar to that of a A. thermostatic expansion valve.

B. auxillary electric water pump.

C. one-stroke variable displacement compressor.

D. two-stroke cylinder engine.

D. two-stroke cylinder engine.

Explanation:

Two-stroke cylinder engine: In chemistry, the term "two-stroke cylinder engine" is described as one of the types of "internal combustion engine" that tends to complete a single "power cycle" possessing two different strokes of the "piston" during a particular "crankshaft revolution".

It generally consists of two different strokes that are being often known as power or exhaust and suction stroke.

In the question above, the given statement signifies the "two-stroke cylinder engine".