Practice question

A two-stroke engine lubricates its crankshaft and cylinder by:

  1. A pressurized oil pump and wet sump only
  2. Oil mixed with the fuel (premix) or metered by an oil-injection pump into the intake
  3. Grease packed in the crankcase
  4. Coolant circulation

Answer: B — Oil mixed with the fuel (premix) or metered by an oil-injection pump into the intake

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