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Machine Design

Machine Design
For tight leakage joints, following type of thread is best suited

Square
Buttress
Metric
NPT (national pipe threads).

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Machine Design
The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for

Safety
Ease of manufacture
Fullering and caulking
Reducing stress concentration

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Machine Design
When a nut is tightened by placing a washer below it, the bolt will be subjected to following type of loads

Tension
Compression
Shear
Combined loads

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Machine Design
The function of cutting oil when threading a pipe is to

All of these
Provide cooling action
Help removes chips
Lubricate the dies

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Machine Design
A connecting rod is designed as a

All of these
Strut
Short column
Long column

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Machine Design
Euler’s formula for a mild steel column is not valid if the slenderness ratio is

90
100
120
60

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