Skip to content
  • Chemistry MCQs
  • Computer MCQs
  • English MCQs
  • General Knowledge MCQs
  • General Science MCQs
  • Islamiyat MCQs
  • Mathematics MCQs
  • Physics MCQs
TestMCQs.org
  • Home
  • Subjects
  • Dynamic Quiz
  • Jobs
  • Blog
  • About Us
  • Contact Us

Home > Engineering > Mechanical Engineering

What is the purpose of lubrication in mechanical systems?

A. To reduce wear and friction
B. To enhance electrical conductivity
C. To increase weight
D. To improve thermal conductivity

Answer: To reduce wear and friction


Additional Information: Lubrication minimizes friction and wear between moving parts, extending the lifespan of machinery and improving efficiency.


Subjects: Mechanical Engineering, Engineering

Related MCQs

  • Which law states that the total energy in a closed system remains constant?
  • What is the principle behind a hydraulic press?
  • What is the primary function of a flywheel in a mechanical system?
  • What type of material is typically used for making springs?
  • What does the term ‘yield strength’ signify in materials?
  • What is the primary purpose of a gear system in machinery?
  • What is the primary function of a compressor in mechanical systems?
  • What type of energy conversion occurs in a turbine?
  • Which of the following is a type of mechanical advantage?
  • In which process does a liquid change to gas at a temperature below its boiling point?
  • Which of the following is a common type of material used for manufacturing gears?
  • What is the role of a heat exchanger in a mechanical system?
  • Which type of joint is commonly used to connect two shafts in mechanical systems?
  • What is the primary purpose of a bearing in mechanical systems?
  • What does the term ‘fatigue’ refer to in materials engineering?

MCQs Menu

  • Biology MCQs
  • Chemistry MCQs
  • Computer MCQs
  • English MCQs
  • General Knowledge MCQs
  • General Science MCQs
  • Geography MCQs
  • Islamiyat MCQs
  • Mathematics MCQs
  • Physics MCQs

Engineering MCQs

  • Civil MCQs
  • Electrical MCQs
  • Mechanical MCQs
  • Privacy Policy
  • Terms & Conditions
  • Disclaimer
  • Sitemap
© 2025 TestMCQs.org • Built with GeneratePress