Podcast
Questions and Answers
What is the function of lubricants?
What is the function of lubricants?
- Increase friction and absorb extra heat
- Accelerate machine wear and tear
- Promote gas leakage and remove solid combustion products
- Decrease friction and prevent machine damage (correct)
What are the types of lubricants mentioned in the text?
What are the types of lubricants mentioned in the text?
- Liquid, semisolid, emulsion, solid (correct)
- Synthetic, organic, inorganic, hybrid
- Oil-based, water-based, gas-based, chemical-based
- Monomolecular, multimolecular, polymeric, metallic
What is the composition of lubricating oil?
What is the composition of lubricating oil?
- 50% base oil and 50% additives
- 100% base oil (synthetic oil)
- 70% base oil and 30% emulsifiers
- 90% base oil (mineral oil) and 10% additives (correct)
What is the main purpose of introducing a substance between two moving surfaces of machines?
What is the main purpose of introducing a substance between two moving surfaces of machines?
What is the function of lubricants in relation to heat in machines?
What is the function of lubricants in relation to heat in machines?