Mechanical Engineering Questions And Answers :: Machine Design: part2



Mechanical Engineering : Machine Design QUESTIONS AND ANSWERS :: part2 : 11 to 15

Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

11.In nitrided parts, the origins of the fatigue cracks will occur at

surface
just below the surface
within the core
could occur anywhere
none of the above.

12.The ratio of endurance limit in shear to the endurance limit in flexure is

0.33
0.4
0.5
0.55
0.6

13.The crest diameter of a screw thread is same as

major diameter
minor diameter
pitch diameter
core diameter
none of the above.

14.Cold working

increases the fatigue strength
decreases the fatigue strength
has no influence on fatigue strength
alone has no influence on fatigue strength
none of the above.

15.In most machine members, the damping capacity of the material should be

low
zero
high
could be anything
none of the above.

More Machine Design QUESTIONS AND ANSWERS available in next pages

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