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Machine Design

Machine Design
In Vickers hardness testing, the pyramid indentor apex is

152°
122°
40°
136°

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Machine Design
When the length of the journal is equal to the diameter of the journal, then the bearing is said to be a

Short bearing
Square bearing
Long bearing
Medium bearing

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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

0.8 d
1.2 d
1.57 d
1.8 d

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Machine Design
The centrifugal tension in belts

Increases the power transmitted
Increase the wrap angle
Increases the belt tension without increasing power transmission
Decreases the power transmitted

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Machine Design
The helix angle for double helical gears may be made up to

60°
75°
45°
90°

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Machine Design
In most machine members, the damping capacity of the material should be

Low
Could be anything
High
Zero

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MORE MCQ ON Machine Design

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