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Machine Design

Machine Design
The shock resistance of steel is increased by adding

Nickel
Chromium
Cobalt and molybdenum
Nickel and chromium

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Machine Design
The bearing characteristic number in a hydrodynamic bearing depends upon

Length, width and speed
Length, width and load
Viscosity, speed and load
Viscosity, speed and bearing pressure

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Machine Design
Shear stress theory is applicable for

Elastic materials
Ductile materials
All of these
Brittle materials

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Machine Design
Rivets are generally specified by

Thickness of plates to be riveted
Length of rivet
Diameter of head
Nominal diameter

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Machine Design
The property of a bearing material which has the ability to accommodate small particles of dust, grit etc. without scoring the material of the journal, is called

Comformability
Embeddability
Bondability
Fatigue strength

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Machine Design
When a bolt and nut is made of mild steel, then the effective height of nut is made equal to (where d = Nominal diameter of bolt)

d
1.25 d
0.75 d
0.5 d

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