This stroke of an Otto cycle is enabled by a manifold that generates a partial vacuum. For 10 points each:
[10m] What stroke of a four-stroke Otto cycle directly follows the exhaust stroke and precedes the compression stroke?
ANSWER: intake stroke [accept intake manifold; prompt on, but DO NOT REVEAL, isobaric expansion or expanding isobarically or isobaric stroke]
[10e] In the Otto cycle, the intake stroke approximately has this property of occurring at constant pressure.
ANSWER: isobaric [accept isobaric process]
[10h] The intake valve remains open until partway into the compression stroke in this non-supercharged cycle, which has higher efficiency than the Otto cycle but creates less power. A century after its invention, this cycle rose to prominence due to its use in hybrids like the Toyota Prius.
ANSWER: Atkinson cycle
<Physics>