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Machine Design

Machine Design
The yield point in static loading is __________ as compared to fatigue loading.

Same
Lower
None of these
Higher

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Machine Design
The dedendum is the radial distance from the

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

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Machine Design
The lead angle of a worm is 22.5°. Its helix angle will be

45°
22.5°
67.5°
90°

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Machine Design
If P1 and P2 are the tight and slack side tensions in the belt, then the initial tension Pi (according to Barth) will be equal to (Where, Pc is centrifugal tension)

[⅟₂ × (P1 + P2)] + Pc
P1 + P2
⅟₂× (P1 + P2)
[(√P1 + √P2)/2]²

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Machine Design
The valve rod in a steam engine is connected to an eccentric rod by

Universal coupling
Knuckle joint
Cotter joint
Bolted joint

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Machine Design
A steel containing _________ 0.8% carbon is known as hypo-eutectoid steel.

None of these
Equal to
Less than
Greater than

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