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Machine Design

Machine Design
The diameter of knuckle pin in a knuckle joint is usually taken as (where d = Diameter of the rod)

1.2 d
d
0.8 d
0.5 d

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Machine Design
The strap end of a connecting rod of steam engine is joined by

Gib of cotter joint
Sleeve and cotter joint
Spigot socket cotter joint
Knuckle joint

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Machine Design
In a horizontal flat belt drive, it is customary to use

Bottom side of belt as slack side
Idler pulley
Top side of belt as slack side
None of these

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

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

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Machine Design
The material commonly used for crane hooks is

Aluminium
Cast iron
Mild steel
Wrought iron

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Machine Design
In worm gears, the angle between the tangent to the pitch helix and an element of the cylinder, is known as

None of these
Helix angle
Pressure angle
Pitch lead angle

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