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Machine Design

Machine Design
The following type of nut is used with alien bolt

Slotted nut
Any one of the above
Castle nut
Hexagonal nut

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Machine Design
A pressure vessel is said to be a thick shell, if the ratio of wall thickness to its diameter is

None of these
Greater than 1/10
Less than 1/10
Equal to 1/10

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Machine Design
In designing a connecting rod, it is considered like __________ for buckling about Y-axis.

Both ends fixed
One end fixed and the other end hinged
One end fixed and the other end free
Both ends hinged

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Machine Design
The anti-friction bearings

Have low starting and low running friction at moderate speeds
All of these
Have high initial cost
Can carry both radial and thrust loads

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Machine Design
When the screw in a mechanical screw jack rotates, the load kept on the top of it moves

Axially upwards
Axially upwards or downwards
None of these
Axially downwards

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Machine Design
The maximum normal stress theory is used for

Brittle materials
Ductile materials
Plastic materials
Non-ferrous materials

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