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Machine Design

Machine Design
In worm gears, the pressure angle is __________ the angle between two inclined faces in axial plane.

Thrice
None of these
Twice
Half

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Machine Design
In helical gears, the right hand helixes on one gear will mesh __________ helixes on the other gear.

Left hand
Right hand
None of these
Both A and B

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Machine Design
Multiple threads are used to secure

High mechanical advantage
High load lifting capacity
High efficiency
Low efficiency

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Machine Design
The dedendum is the radial distance from the

Pitch circle to the bottom of a tooth
Pitch circle to the top of a tooth
Top of a tooth to the bottom of a tooth
Addendum circle to the clearance circle

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Machine Design
A double strap butt joint (with equal straps) is

Always in double shear
Any one of these
Always in single shear
Either in single shear or double shear

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Machine Design
The distribution of the forces along the length of key fitted in a shaft

Varies exponentially, being less near the torque-input end
Is uniform throughout
Varies exponentially, being more near the torque-input end
Varies linearly

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