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Machine Design

Machine Design
The shock resistance of steel is increased by adding

Nickel
Nickel and chromium
Cobalt and molybdenum
Chromium

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Machine Design
A cotter joint is used to connect two __________ rods.

Perpendicular
None of these
Parallel
Co-axial

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Machine Design
The bearings of heavy series have capacity __________ over the medium series.

30 to 40%
40 to 50%
20 to 30%
10 to 20%

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Machine Design
In leaf springs, the longest leaf is known as

Upper leaf
Lower leaf
None of these
Master leaf

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Machine Design
When two helical springs of equal lengths are arranged to form a cluster spring, then

Both A and B is correct
Shear stress in each spring will be equal
Only A is correct
Load taken by each spring will be half the total load

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Machine Design
When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and one of the bevel gears has a pitch angle of 90°, then they are known as

Internal bevel gears
Crown bevel gears
Mitre gears
Angular bevel gears

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