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Machine Design

Machine Design
The centre to centre distance between two consecutive rivets in a row, is called

Diagonal pitch
Margin
Pitch
Back pitch

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Machine Design
A connecting rod should be

Equally strong in buckling about X-axis and Y-axis
Strong in buckling about Y-axis
Any one of the above
Strong in buckling about X-axis

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Machine Design
The material commonly used for crane hooks is

Wrought iron
Mild steel
Aluminium
Cast iron

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Machine Design
A screw is said to be over hauling screw, if the

Efficiency of screw is 100%
Friction angle is less than helix angle
Friction angle is equal to helix angle
Friction angle is more than helix angle

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

Reducing stress concentration
Ease of manufacture
Fullering and caulking
Safety

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Machine Design
The permissible stress in the fillet weld is 100 N/mm². The fillet weld has equal leg lengths of 15 mm each. The allowable shearing load on the weldment per cm length of the weld is

15 kN
22.5 kN
10.6 kN
7.5 kN

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