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Machine Design

Machine Design
The diameter of the rivet hole is usually __________ the nominal diameter of the rivet.

More than
None of these
Equal to
Less than

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Machine Design
The strength of the unriveted plate (P) per pitch length is equal to

(p - d) t.σt
p.d.σt
p.t.σt
(p - d) σt

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

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

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Machine Design
If p = bearing pressure on projected bearing area, z = absolute viscosity of lubricant, and N = speed of journal, then the bearing characteristic number is given by

Z/pN
N/Zp
p/ZN
ZN/p

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Machine Design
A steel containing up to 0.15% carbon is known as

Medium carbon steel
Dead mild steel
High carbon steel
Mild steel

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Machine Design
Resistance to fatigue of a material is measured by

Endurance limit
Young's modulus
Coefficient of elasticity
Elastic limit

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