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Practice quizzes / NAVTTC Auto Mechanic Practice Questions - NAVTTC Trade Test - Auto Mechanic Motor Vehicle Mechanic (Pakistan) Exam / Question 137132
Practice question

What is defined as the ratio of the maximum cylinder volume (piston at BDC) to the minimum cylinder volume (piston at TDC)?

  1. Displacement ratio
  2. Compression ratio
  3. Volumetric efficiency
  4. Thermal efficiency

Answer: B — Compression ratio

The correct answer is shown above. Try the full quiz for additional practice.

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