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Machine Design

Machine Design
The material used for brake lining should have __________ coefficient of friction.

Low
None of these
Moderate
High

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Machine Design
In second type of levers,

None of these
Fulcrum is in between the load and effort
Effort is in between the fulcrum and load
Load is in between the fulcrum and effort

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Machine Design
A bolt is designed on the basis of __________ with a large factor of safety.

Direct compressive stress
Direct tensile stress
Direct bending stress
Direct shear stress

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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

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

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Machine Design
The expression 0.175 - 0.841/T is the Lewis form factor for

14½° composite and full depth involute system
20° stub system
20° full depth involute system
None of these

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Machine Design
In a horizontal flat belt drive, it is customary to use

Top side of belt as slack side
None of these
Idler pulley
Bottom side of belt as slack side

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