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Machine Design

Machine Design
In most machine members, the damping capacity of the material should be

Zero
Low
Could be anything
High

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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
7.5 kN
22.5 kN
10.6 kN

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Machine Design
In order to ensure self locking in a screw jack, it is essential that helix angle is __________ friction angle.

Larger than
Equal to
Smaller than
None of these

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Machine Design
A shaft is subjected to

All of these
Combined bending and shear stresses
Bending stresses
Shear stresses

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Machine Design
In a belt drive, if the pulley diameter is doubled keeping the tension and belt width constant, then it will be necessary to

Increase the key width
Increase the key length
Decrease the key length
Increase the key depth

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Machine Design
The power transmitted by means of a belt depends upon

Arc of contact between the belt and the smaller pulley
Tension under which the belt is placed on the pulleys
Velocity of the belt
All of these

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