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Machine Design

Machine Design
The wear load should be __________ the dynamic load.

Greater than
Less than
Equal to
None of these

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Machine Design
Buttress threads are usually found on

Railway carriage couplings
Feed mechanisms
Spindles of bench vices
Screw cutting lathes

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Machine Design
According to Indian standard specifications, a Grey cast iron designated by 'FG 200' means that the

Maximum shear strength is 200 N/mm²
Minimum tensile strength is 200 N/mm²
Maximum compressive strength is 200 N/mm²
Carbon content is 2%

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Machine Design
Rankine Gordon formula for buckling is valid for

Long column
Short column
Very long column
Short and long column

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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
Which of the following coupling is used to connect two shafts which have both lateral and angular misalignment?

All of these
Universal coupling
Bushed pin type coupling
Oldham coupling

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