Engine Friction MCQ

Test your knowledge with important Engine Friction MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Engine Friction MCQs at Bissoy

• As the load increases the maximum pressure in the cylinder has a tendency to increase slightly.
  ক

  True

  খ

  False
• Higher the oil viscosity ____________ is the friction loss.
  ক

  lower

  খ

  greater

  গ

  unpredictable

  ঘ

  none of the mentioned
• A rise in cooling water temperature ____________ engine friction through its effect on oil viscosity.
  ক

  increases

  খ

  reduces

  গ

  unpredictable

  ঘ

  none of the mentioned
• Blow by losses vary as the square root of inlet pressure, and increases as the compression ratio are ____________
  ক

  increased

  খ

  reduced

  গ

  unpredictable

  ঘ

  none of the mentioned
• Blow by losses depend on the outlet pressure and compression ratio.
  ক

  True

  খ

  False
• The blow by losses is the phenomenon of leakage of combustion products past the piston and piston rings from the cylinder to the crankcase.
  ক

  True

  খ

  False
• The valve gear friction losses vary with the engine design variables and no general equation is available predicting them.
  ক

  True

  খ

  False
• Bearing friction is viscous in nature and does not depends upon the oil viscosity, the speed, size and geometry of the journal.
  ক

  True

  খ

  False
• The bearing friction includes the friction due to the main bearing connecting rod bearing and other bearings.
  ক

  True

  খ

  False