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WorksheetsTUTORIAL 4_BEARING_Part b
Total questions: 10
Worksheet time: 5mins
Sliding contact bearings , also called plain bearings have no problem of wear.
True
False
Scoring and pitting causes failure of bearings by damaging the working surfaces.
True
False
What is one common failure associated with Spherical Roller Bearings?
Corrosion
Loss of lubrication
Improper lubrication
Contamination
What is a common failure associated with Hydrodynamic Bearings?
Loss of lubrication
Contamination
Corrosion
Improper lubrication
What are five maintenance practices to ensure a bearing is in good working condition?
Regular inspection, cleanliness, proper lubrication, correct installment and alignment, monitoring for excessive vibration or noise
Periodic replacement, lubricant change, high-temperature operation, vibration analysis, noise reduction
Regular lubrication, high-speed operation, misalignment correction, contamination prevention, noise reduction
Visual inspection, lubricant change, high-speed operation, misalignment correction, noise reduction
Bearings should never be struck with a hammer.
True
False
Which of the following is not a type of failure in journal bearing?
Abrasive wear
Pitting
Corrosion
Distortion
Which type of lubricant is used in a bearing?
Mineral oil
Grease
Graphite
All of the listed
In a hydrodynamic lubricated bearing....
there is a thin film of lubricant between the journal and the bearing.
there is a thick film of lubricant between the journal and the bearing
there is no lubricant between the journal and the bearing
the lubricant is forced between the journal and the bearing, by external pressure
In hydrodynamic bearings.......
require an external supply of lubricant
the oil film is maintained by supplying oil under pressure
the oil film pressure is generated only by the rotation of the journal
grease is used for lubrication
