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Machine Design

Machine Design
Applications in which stresses are encountered in one direction only uses following type of threads

Square
Metric
Buttress
Acme

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Machine Design
Which of the following screw thread is used for power transmission in one direction only?

Multiple threads
Acme threads
Buttress threads
Square threads

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Machine Design
In designing a sleeve coupling, outer diameter of the sleeve is taken as (where d = Diameter of the shaft)

d + 17 mm
3.5d
2d + 20 mm
2d + 13 mm

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Machine Design
The objective of idler pulley in belt drive is to

Decrease the tendency of belt to slip
Increase the power transmission capacity
Increase the wrap angle and belt tension
All the above objectives

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Machine Design
The draw of cotter should not be more than

12 mm
8 mm
3 mm
6 mm

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Machine Design
A key capable of tilting in a recess milled out in a shaft is known as

Flat saddle key
Feather key
Hollow saddle key
Woodruff key

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