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Machine Design

Machine Design
The standard length of the shaft is

5 m
All of these
7 m
6 m

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Machine Design
If P1 and P2 are the tight and slack side tensions in the belt, then the initial tension Pi (according to Barth) will be equal to (Where, Pc is centrifugal tension)

[⅟₂ × (P1 + P2)] + Pc
⅟₂× (P1 + P2)
P1 + P2
[(√P1 + √P2)/2]²

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Machine Design
The most important dimension in the design of a nut is

Height
Inside diameter
Outside diameter
Pitch diameter

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Machine Design
In a belt drive, if the pulley diameter is doubled keeping the tension and belt width constant, then it will be necessary to

Increase the key depth
Increase the key width
Increase the key length
Decrease the key length

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Machine Design
Which of the following cotter joint will be used to connect strap end of a connecting rod?

Gib and cotter joint
Sleeve and cotter joint
Any one of these
Spigot and socket cotter joint

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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

0.4 times
0.6 times
0.8 times
0.7 times

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