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Machine Design

Machine Design
The size of a gear is usually specified by

Diametral pitch
Circular pitch
Pitch circle diameter
Pressure angle

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Machine Design
18/8 steel contains

18% vanadium and 8% nickel
18% nickel and 8% chromium
18% chromium and 8% nickel
18% nickel and 8% vanadium

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Machine Design
The material used for brake lining should have __________ coefficient of friction.

Low
None of these
Moderate
High

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Machine Design
A single strap butt joint is always in __________ shear.

Double
Single
None of these
Triple share

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Machine Design
A metal pipe of 1 m diameter contains a fluid having a pressure of 1 N/mm². If the permissible tensile stress in the metal is 20 N/mm², then the thickness of the metal required for making the pipe will be

15 mm
10 mm
5 mm
25 mm

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Machine Design
Which of the following welded joint is designed for shear strength?

Parallel fillet welded joint
Transverse fillet welded joint
All of these
Butt welded joint

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