Which of the following statements about the Atkinson cycle are NOT true?

A. The Atkinson cycle allows the effective displacement of the engine to change according to need.
B. In an Atkinson cycle engine, the intake valve is kept open well into the compression stroke.
C. The delay in intake valve closing reduces the power output of the engine and decreases its emissions.
D. During the Atkinson stroke, some unburned air/fuel mixture is pushed into the exhaust manifold.


D. During the Atkinson stroke, some unburned air/fuel mixture is pushed into the exhaust manifold.

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