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Machine Design

Machine Design
For general industrial machinery, the ratio of the length of journal to its diameter is taken as

3 to 5
1 to 2
5 to 10
0.5 to 1

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Machine Design
The shock resistance of steel is increased by adding

Chromium
Cobalt and molybdenum
Nickel and chromium
Nickel

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Machine Design
The function of the washer is to

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

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Machine Design
Which of the following has threads at both ends?

None of these
Bolt
Tap bolt
Stud

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Machine Design
Antifriction bearings are

Sleeve bearings
Hydrodynamic bearings
Thin lubricated bearings
None of these

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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)1/3
(6V/ π)3
(6V/ π)1/2
(6V/ π)2

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