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Machine Design

Machine Design
In a flange coupling, the flanges are coupled together by means of

Bolts and nuts
Headless taper bolts
Studs
None of these

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Machine Design
Factor of safety for fatigue loading is the ratio of

Young's modulus to the ultimate tensile strength
Elastic limit to the yield point
Endurance limit to the working stress
Elastic limit to the working stress

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Machine Design
A tapered key which fits in a key way in the hub and is flat on the shaft, is known as

Wood ruff key
Flat saddle key
Gib-head key
Feather key

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Machine Design
The endurance limit in shear of carbon steel can be obtained by multiplying the endurance limit in flexure by a factor of

0.45
0.75
0.65
0.55

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Machine Design
For steel, the ultimate strength in shear as compared to ultimate strength in tension is

43834
43833
43864
43832

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Machine Design
The permissible stress in the fillet weld is 100 N/mm². The fillet weld has equal leg lengths of 15 mm each. The allowable shearing load on the weldment per cm length of the weld is

22.5 kN
15 kN
10.6 kN
7.5 kN

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