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Machine Design

Machine Design
The product of the diametral pitch and circular pitch is equal to

π × number of teeth
π
1
1/π

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Machine Design
A thin spherical shell of internal diameter d is subjected to an internal pressure p. If V is the storage capacity of shell, then its diameter will be

(6V/ π)2
(6V/ π)1/3
(6V/ π)3
(6V/ π)1/2

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Machine Design
Stress concentration in static loading is more serious in

Equally serious in both cases
Brittle materials
Depends on other factors
Ductile materials

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Machine Design
A localized compressive stress at the area of contact between two members is known as

Tensile stress
Bearing stress
Shear stress
Bending stress

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Machine Design
The maximum efficiency of a square threaded screw is

(1 - sinφ)/ (1 + cosφ)
(1 - sinφ)/ (1 + sinφ)
(1 + sinφ)/ (1 - sinφ)
(1 + cosφ)/ (1 - sinφ)

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Machine Design
In a transverse fillet welded joint, the size of weld is __________ the throat of weld.

2 times
Double
Equal to
0.5 times

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