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Machine Design

Machine Design
In a marine flange coupling, the pitch circle diameter of bolts is taken as

2 d
1.6 d
1.2 d
2.5 d

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Machine Design
When the length of the journal is equal to the diameter of the journal, then the bearing is said to be a

Long bearing
Short bearing
Square bearing
Medium bearing

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Machine Design
According to I.B.R., the distance between the rows of rivets, for equal number of rivets in more than one row for lap joint or butt joint (chain riveting) shall not be less than

1.5 d
d
2 d
2.5 d

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Machine Design
For low and moderate speed engines, the cam follower should move with

Uniform acceleration and retardation
Cycloidal motion
Simple harmonic motion
Uniform velocity

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Machine Design
Tearing resistance required to tear off the plate per pitch length is (where p = Pitch of rivets, d = Dia. of rivet hole, and σt = Permissible tensile stress for plate material)

p.d.σt
p.t.σt
(p - d) t.σt

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Machine Design
The draw of cotter need not exceed

10 mm
5 mm
3 mm
20 mm

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