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Machine Design

Machine Design
The railway carriage couplings have

Buttress threads
Knuckle threads
Square threads
Acme threads

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

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

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Machine Design
If a spring is cut down into two springs, the stiffness of cut springs will be

Same
None of these
Double
Half

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Machine Design
In second type of levers,

Effort is in between the fulcrum and load
Load is in between the fulcrum and effort
Fulcrum is in between the load and effort
None of these

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Machine Design
A sliding bearing which can support steady loads without any relative motion between the journal and the bearing, is called

Zero film bearing
Hydrostatic lubricated bearing
Boundary lubricated bearing
Hydrodynamic lubricated bearing

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Machine Design
A connecting rod should be

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

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