Quiz  /  Engines and Machines: Fact or Fiction?

  • 1. 
    Most gas-powered cars use four-cycle engines.

  • Fact
  • Fiction

  • 2. 
    A human body gives off about as much heat as an automobile engine.

  • Fact
  • Fiction

  • 3. 
    The lever is a machine.

  • Fact
  • Fiction

  • 4. 
    A bicycle is not a machine.

  • Fact
  • Fiction

  • 5. 
    A diesel engine uses compressed air.

  • Fact
  • Fiction

  • 6. 
    The first bicycles did not have pedals.

  • Fact
  • Fiction

  • 7. 
    A gasoline engine is more efficient than a diesel engine.

  • Fact
  • Fiction

  • 8. 
    High-performance engines require low-octane gasoline.

  • Fact
  • Fiction
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