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Machine Design

Machine Design
A riveted joint is a __________ fastening.

Permanent
Temporary
Either A or B
None of these

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Machine Design
For longitudinal joint in boilers, the type of joint used is

Butt joint with double cover plate
Lap joint with one ring overlapping the other
Any one of the above
Butt joint with single cover plate

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Machine Design
The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under load W will be

43869
44045
44047
43929

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

Metric
NPT (national pipe threads).
Square
Buttress

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Machine Design
In worm gears, the angle between the tangent to the pitch helix and an element of the cylinder, is known as

Pressure angle
None of these
Pitch lead angle
Helix angle

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Machine Design
Brittle coating technique is used for

Determining brittleness
Protecting metal against wear and tear
Protecting metal against corrosion
Experimental stress analysis

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