Worksheetspurpose of lubrication
Total questions: 10
Worksheet time: 5mins
Lubrication is the process of applying
Oil
Grease
Lubricant
None of these
Lubricants are found in
Solid state
Liquid state
Gaseous state
All of the above
A lubricant which is a mixture of oil, additives and thickeners is
Semi solid lubricant
Gaseous lubricant
Liquid lubricant
None of these
Graphite is an example of
Solid lubricant
Semi solid lubricant
The solid lubricants can work at higher temperatures in non oxidizing conditions
True
False
Vaseline is an example of
Liquid lubricant
Semi solid lubricant
Lubricants are classified based on their
Applications
Physical state
Viscosity
None of the above
Oil based lubricants cannot be applied at higher temperatures, because they may
Evaporate
Lead to combustion
All of the above
Lubrication reduces
Friction at contact surface
Wear and tear
All of the above
The process of reducing friction between sliding surfaces by introducing a slippery or smooth substance between them
hydration
lubrication
hydrolysis
hydrodynamics
