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Machine Design

Machine Design
The constant factor in case of R10 series of preferred numbers is

1.12
1.06
1.58
1.26

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Machine Design
In order to avoid tearing of the plate at an edge, the distance from the centre line of the rivet hole to the nearest edge of the plate should be equal to (where d = Diameter of rivet hole)

1 d
2.5 d
1.5 d
2 d

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Machine Design
When two non-parallel or intersecting but coplanar shafts are connected by gears, the arrangement is known as,

None of these
Helical gearing
Worm gearing
Bevel gearing

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

d
0.5 d
0.8 d
1.2 d

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Machine Design
If T₁ and T₂ are the tensions on the tight and slack sides of the belt respectively, and Tc is the centrifugal tension, then initial tension in the belt is equal to

(T₁ - T₂ + Tc)/2
(T₁ + T₂ + Tc)/2
T₁ + T₂ + Tc
T₁ - T₂ + Tc

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Machine Design
For a shaft diameter of 100 mm, the number of bolts in a flange coupling should be

4
8
10
6

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