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Machine Design

Machine Design
The crest diameter of a screw thread is same as

Core diameter
Major diameter
Minor diameter
Pitch diameter

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Machine Design
The objective of caulking in a riveted joint is to make the joint

Free from stress
Leak-proof
Stronger in tension
Free from corrosion

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Machine Design
The number of slots in a 25 mm castle nut is

2
4
6
8

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Machine Design
A sliding bearing in which although lubricant is present, the working surfaces __________ contact each other at least part of the time, is called boundary lubricated bearing.

None of these
Fully
Either A or B
Partially

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Machine Design
For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately

0.8 times
0.7 times
0.6 times
0.4 times

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Machine Design
A bolt is designed on the basis of __________ with a large factor of safety.

Direct tensile stress
Direct compressive stress
Direct bending stress
Direct shear stress

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