51. |
For the majority of bearings, actual life is considerably greater than rated life.
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Answer:
Option (a) |
52. |
The dynamic load-carrying capacity of a bearing is defined as the radial load in radial bearings that can be carried for a minimum life of 1000 revolutions.
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Answer:
Option (b) |
53. |
In the expression of dynamic load capacity P=XVFr + YFa, V stands for?
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Answer:
Option (a) |
54. |
In the expression of dynamic load capacity P=XVFr + YFa, X stands for?
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Answer:
Option (b) |
55. |
In the expression of dynamic load capacity P=XVFr + YFa, Y stands for?
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Answer:
Option (c) |
56. |
Calculate the bearing life if expected life for 90% bearings is 9000 hr and the shaft is rotating at 1500 rpm.
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Answer:
Option (b) |
57. |
The ball bearing is subjected to a radial load of 4000 N. Expected life for 90% bearings is 9000 hr and the shaft is rotating at 1500 rpm. Calculate the dynamic load capacity.
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Answer:
Option (b) |
58. |
Extreme Pressure (EP) additives cause ______ wear in the bearing parts.
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Answer:
Option (b) |
59. |
Scoring is a ________ phenomenon.
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Answer:
Option (a) |
60. |
_______ is a surface fatigue failure which occurs when the load on the bearing part exceeds the surface endurance strength of the material.
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Answer:
Option (b) |