Related InterviewSolutions

• 99% of grease is produced from __________(a) petroleum oil(b) olive oil(c) castor oil(d) whale oil
• A dispersion system consisting of two immiscible liquids is called ________(a) Lubricants(b) Emulsions(c) Semi solids(d) Solids
• Insulators making rubbing contact require _______(a) Low conductivity(b) High conductivity(c) Low pressure(d) High pressure
• In solid lubricants, the _________ will be low.(a) coefficient of friction(b) calorific value(c) stability(d) cleanliness
• Soft metal lubricants are produced by using ____________(a) purifying(b) thermal spraying(c) distillation(d) electroplating
• The crystal lattice of the inorganic lubricants has a ___________ forming thin parallel planes.(a) octagonal rings(b) hexagonal rings(c) pentagonal rings(d) trigonal rings
• A good liquid lubricant must possess the property of ___________(a) Low viscosity(b) High boiling point(c) High freezing point(d) Low oiliness
• Sodium base greases can be utilized up to the temperature of ____________(a) 175^oC(b) 100^oC(c) 75^oC(d) 80^oC
• The lubricant should have __________ vapor pressure.(a) High(b) Extreme(c) Moderate(d) Low
• The more friction of the greases is due to their high __________(a) velocity(b) viscosity(c) temperature coefficient(d) buoyancy