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

Spur gearing
Helical gearing
Spiral gearing
Bevel gearing

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Machine Design
According to I.B.R., when the thickness of the boiler shell (t) is less than 8 mm, then the diameter of the rivet hole (d) is obtained by

None of these
Equating shearing resistance to the crushing resistance of the rivets
Equating tearing resistance of the plate to the crushing resistance of the rivets
Equating tearing resistance of the plate to the shearing resistance of the rivets

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