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Machine Design

Machine Design
The strength of the unriveted plate (P) per pitch length is equal to

p.d.σt
(p - d) σt
p.t.σt
(p - d) t.σt

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Machine Design
Which of the following has threads at both ends?

Stud
Bolt
Tap bolt
None of these

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Machine Design
A V-belt designated as B 4430 LP has

4430 mm as nominal pitch length
4430 mm as centre distance between pulleys
4430 mm as diameter of large pulley
4430 mm as diameter of small pulley

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Machine Design
The condition for maximum power transmission is that the maximum tension in the flat belt should be equal to (Where, Pc = tension in belt due to centrifugal force)

1 Pc
Pc/3
2 Pc
3 Pc

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Machine Design
When the material of key and shaft is same, and the width of key is one-fourth of the diameter of shaft (d), then length of key will be

1.57 d
1.8 d
1.2 d
0.8 d

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Machine Design
A rivet is specified by

Type of head
Length of tail
Shank diameter
Length of rivet

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