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very large is the keyword here. for a very large engines that runs large machines, we need high power engines.
two-strike cycle engines produce more power than 4-stroke cycle engines. that's why they are used.
as they produce more pollution than 4-strokes, they must be limited to small spaced engines machines or large machines that required very high power.
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Why do most very large engines operate on two stroke cycle?
very large is the keyword here. for a very large engines that runs large machines, we need high power engines. two-strike cycle engines produce more power than 4-stroke cycle engines. that's why they are used. as they produce more pollution than 4-strokes, they must be limited to small spaced engines machines or large machines that required very high power.
Why is lawn mower or leaf blower so loud with such small engine while heavy SUVs are so quiet?
Small engines are loud because it would require a large muffler to make them quiet. There is simply not enough room to install a large muffler. This is especially true with 2 cycle engines in trimmers or blowers. The design of a 2 cycle engine contributes to the noise. This and pollution is the reason 2 cycle engines are being phased out in favor of 4 cycle engines.
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The mitochondria provides a large surface area for the electron transport chain and the ATP synthase which are all located in the cristae, which the Kreb's cycle needs to operate.
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