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Machine Design

Machine Design
The draw of cotter should not be more than

8 mm
12 mm
6 mm
3 mm

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Machine Design
Which one of the following is a positive drive?

Crossed flat belt drive
Rope drive
V-belt drive
Chain drive

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Machine Design
The centrifugal tension in belts

Increase the wrap angle
Increases the belt tension without increasing power transmission
Decreases the power transmitted
Increases the power transmitted

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Machine Design
According to Unwin's formula, the relation between the diameter of rivet hole (d) and the thickness of plate (t) is given by (where d and t are in mm)

d = 2√t
d = 1.6√t
d = 6√t
d = √t

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Machine Design
A localized compressive stress at the area of contact between two members is known as

Bearing stress
Bending stress
Shear stress
Tensile stress

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Machine Design
The included angle for the British Association thread is

60°
29°
55°
47.3°

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MORE MCQ ON Machine Design

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