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Machine Design

Machine Design
Rankine Gordon formula for buckling is valid for

Long column
Very long column
Short column
Short and long column

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Machine Design
The longitudinal joint in boilers is used to get the required

Efficiency of boiler
Diameter of boiler
Length and diameter of boiler
Length of boiler

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Machine Design
The shear plane in case of bolts should

Be normal to threaded portion of shank
Never be across the threaded portion
Be across threaded portion of shank
Be parallel to axis of bolt

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Machine Design
In a flange coupling, the flanges are coupled together by means of

None of these
Studs
Bolts and nuts
Headless taper bolts

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Machine Design
The valve rod in a steam engine is connected to an eccentric rod by

Knuckle joint
Cotter joint
Bolted joint
Universal coupling

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Machine Design
The fatigue life of a part can be improved by

Polishing
Coating
Shot peening
Electroplating

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