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Machine Design

Machine Design
The pitch of threads on a Jock nut in comparison to pitch of nut is

Very fine
Coarser
Same
Finer

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Machine Design
When bevel gears having equal teeth and equal pitch angles connect two shafts whose axes intersect at right angle, then they are known as

Crown bevel gears
Miter gears
Angular bevel gears
Internal bevel gears

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Machine Design
Multiple threads are used to secure

High efficiency
High mechanical advantage
Low efficiency
High load lifting capacity

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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

15 kN
10.6 kN
7.5 kN
22.5 kN

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Machine Design
The cold working of metals is carried out __________ the recrystallization temperature.

Above
Below
None of these
At

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Machine Design
The included angle in unified of American National threads is

29°
60°
47°
55°

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