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Machine Design

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

Metric
Square
Buttress
NPT (national pipe threads).

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Machine Design
Cast iron pipes are mainly used

All of these
In pressure lubrication systems on prime movers
For conveying steam
In water and sewage systems

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Machine Design
The property of a bearing material which has the ability to accommodate shaft deflections and bearing inaccuracies by plastic deformation without excessive wear and heating, is known as

Fatigue strength
Comformability
Bondability
Embeddability

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Machine Design
The acme threads are usually found on

Railway carriage couplings
Feed mechanism of machine tools
Spindles of bench vices
Screw cutting lathes

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Machine Design
The surface finish factor for a mirror polished material is

0.45
0.85
0.65
1

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Machine Design
A key made from a cylindrical disc having segmental cross-section, is known as

Feather key
Gib head key
Flat saddle key
Woodruff key

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