Practice question

What is the primary function of a gasket between a motorcycle cylinder head and cylinder?

  1. Increase compression ratio by adding metal thickness permanently
  2. Replace the need for head-bolt torque specifications
  3. Seal the joint against gas, oil or coolant leakage between mating surfaces
  4. Act as the main bearing for the crankshaft

Answer: C — Seal the joint against gas, oil or coolant leakage between mating surfaces

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