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Machine Design

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

Double
None of these
Half
Same

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Machine Design
Taper usually provided on cotter is

1 in 10
1 in 5
1 in 40
1 in 24

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Machine Design
The function of the washer is to

Provide cushioning effect
Fill up the axial gap
Provide bearing area
Absorb shocks and vibrations

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Machine Design
In a steam engine, the piston rod is usually connected to the cross-head by means of a

Cotter joint
Universal joint
Knuckle joint
Oldham coupling

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Machine Design
A compound cylinder with inner radius 50 mm and outer radius 70 mm is made by shrinking one cylinder on to the other cylinder, the junction radius is 60 mm and the junction pressure is 1.1 N/mm². The maximum hoop stress developed in the inner cylinder is

7.2 N/mm² tension
3.6 N/mm² tension
7.2 N/mm² compression
3.6 N/mm² compression

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Machine Design
The ratio of pitch circle diameter in millimeters to the number of teeth, is called

Module
None of these
Diametral pitch
Circular pitch

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