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Machine Design

Machine Design
The rivet head used for boiler plate riveting is usually

Counter sunk head
Conical head
Snap head
Pan Head

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Machine Design
The width of the pulley should be __________ width of the belt.

Less than
None of these
Equal to
Greater than

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Machine Design
Which of the following bearing is preferred for oscillating conditions?

Double row roller bearing
Needle roller bearing
Taper roller bearing
Angular contact single row ball bearing

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Machine Design
Crushing resistance required to crush the rivet per pitch length is

p.d.σc
(p - d) t.σc
p.t.σc
n.d.t.σc

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Machine Design
Deep groove ball bearings are used for

Combined thrust and radial loads at high speed
Small angular displacement of shafts
Radial load at high speed
Heavy thrust load only

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Machine Design
The dedendum circle diameter is equal to (where φ = Pressure angle)

Pitch circle diameter × cosφ
Addendum circle diameter × cosφ
Pitch circle diameter × sinφ
Clearance circle diameter × cosφ

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