1st Year Millwright Lubrication Exam Questions and Answers Fully Solved
What is the correct level of lubrication in an oil bath for an anti-friction bearing? - Answers 1/3 of Lowest
rolling element
The constant level bottle ( Drop feed ) oiler must be installed on the proper side Of the bearing housing,
why is this - Answers Putting it on the wrong side will draw in oil and fill the housing.
List the three types of nozzles used in oil mist lubrication and their applications - Answers Spray fitting,
Condensing fitting, mist fitting
On Block lubrication systems a) the no-flow valves serves what purpose and b) rupture discs serves what
purpose - Answers A)no-flow will Shut down machinery or provide a signal if flow is interrupted
B)Rapture disc indicate blockage in final delivery lines
When filling a pillow block housing with grease, the housing should be filled to what amount - Answers
1/3 lowest rolling element
List the three types of dry solid lubricants and their application - Answers *Graphite - Pins and bushings
where moisture is present
*PTFE(Teflon) - Bonded to the surface of crank and rod bearings in large engine oil
*Molybdenum Disulphide - Anti-wear additive in engine oil
Proper grease selection depends on many factors, name 3 - Answers Speed, temperature, load
Which lubricant is better oil or grease for high speeds - Answers Oil
How should drums of lubricant be stored and for what reason - Answers On its side to keep tops clean
Oil analysis is important, name 3 things it can tell us - Answers Type of metal in oil, Silicone in oil, change
in viscosity
If an oil sample indicates a change in viscosity what could be the reason for the change - Answers Oil is
contaminated or oxidized
Flushing or using a filter cart when installing new oil is recommended, why. - Answers Filter oil of
contaminants
When selecting a lubricant which would be best in helping with sealing effectiveness - Answers greace
Which type of lubricant has the better viscosity range - Answers Oil
What is the purpose of a thickener in grease - Answers Acts like a sponge and hold oil also helps sticks to
surfaces
What are the three more common forms of friction? - Answers Sliding
What is the correct level of lubrication in an oil bath for an anti-friction bearing? - Answers 1/3 of Lowest
rolling element
The constant level bottle ( Drop feed ) oiler must be installed on the proper side Of the bearing housing,
why is this - Answers Putting it on the wrong side will draw in oil and fill the housing.
List the three types of nozzles used in oil mist lubrication and their applications - Answers Spray fitting,
Condensing fitting, mist fitting
On Block lubrication systems a) the no-flow valves serves what purpose and b) rupture discs serves what
purpose - Answers A)no-flow will Shut down machinery or provide a signal if flow is interrupted
B)Rapture disc indicate blockage in final delivery lines
When filling a pillow block housing with grease, the housing should be filled to what amount - Answers
1/3 lowest rolling element
List the three types of dry solid lubricants and their application - Answers *Graphite - Pins and bushings
where moisture is present
*PTFE(Teflon) - Bonded to the surface of crank and rod bearings in large engine oil
*Molybdenum Disulphide - Anti-wear additive in engine oil
Proper grease selection depends on many factors, name 3 - Answers Speed, temperature, load
Which lubricant is better oil or grease for high speeds - Answers Oil
How should drums of lubricant be stored and for what reason - Answers On its side to keep tops clean
Oil analysis is important, name 3 things it can tell us - Answers Type of metal in oil, Silicone in oil, change
in viscosity
If an oil sample indicates a change in viscosity what could be the reason for the change - Answers Oil is
contaminated or oxidized
Flushing or using a filter cart when installing new oil is recommended, why. - Answers Filter oil of
contaminants
When selecting a lubricant which would be best in helping with sealing effectiveness - Answers greace
Which type of lubricant has the better viscosity range - Answers Oil
What is the purpose of a thickener in grease - Answers Acts like a sponge and hold oil also helps sticks to
surfaces
What are the three more common forms of friction? - Answers Sliding
