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Machine Design

Machine Design
The ratio of circumferential stress to longitudinal stress in a thin cylinder subjected to an internal pressure is

4
43832
2
1

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Machine Design
In a butt welded joint, the size of weld is __________ the throat of weld.

Double
0.5 times
2 times
Equal to

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Machine Design
The taper on key is given on

Bottom side only
On both sides
Top side only
Any side

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Machine Design
For hardening alloy steels and high speed steels, they are heated to

1300 to 1500°C
700 to 900°C
500 to 600°C
1100 to 1300°C

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Machine Design
In a horizontal flat belt drive, it is customary to use

None of these
Bottom side of belt as slack side
Idler pulley
Top side of belt as slack side

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Machine Design
When two springs are in series (having stiffness K), the equivalent stiffness will be

2K
K/2
K
K/4

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