Machine Design - Interview Questions | Exam2Win

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11. I.S. specifies following total number of grades of tolerances

A. 18

B. 16

C. 20

D. 22

E. 14.

Explanation:

12. In oiliness bearings

A. the oil film pressure is generated only by the rotation of the journal

B. the oil film is maintained by supplying oil under pressure

C. do not require external supply of lubricant

D. grease required to be applied after some intervals

E. none of the above.

Explanation:

13. Rankine's theory of failure is applicable for following type of materials

A. brittle

B. ductile

C. elastic

D. plastic

E. tough.

Explanation:

14. In hydrodynamic bearings

A. the oil film pressure is generated only by the rotation of the journal

B. the oil film is maintained by supplying oil under pressure

C. do not require external supply of lubricant

D. grease is used for lubrication

E. none of the above.

Explanation:

15. In hydrostatic bearings

A. the Oil film pressure is generated only by the rotation of the journal

B. the oil film is maintained by supplying oil under pressure

C. do not require external supply of lubricant

D. grease is used for lubrication

E. none of the above.

Explanation: