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Machine Design

Machine Design
In a marine flange coupling, the thickness of flange is taken as

d/4
d/3
d/2
3d/4

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Machine Design
A shaft coupling should

Transmit full power of the shaft
Hold the shafts in perfect alignment
Be easy to connect or disconnect
All of these

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Machine Design
The ratio of driving tensions for flat belts, neglecting centrifugal tension, is (where T₁, and T₂ = Tensions on the tight and slack sides of belt respectively, μ = Coefficient of friction, between the belt and pulley, and θ = Angle of contact)

T₁/T₂ = log μθ
T₁/T₂ =eμθ
T₁/T₂ = μθ
log (T₁/T₂) = μθ

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Machine Design
If a bearing is designated by the number 305, it means that the bearing is of

Medium series whose bore is 5 mm
Medium series whose bore is 25 mm
Light series whose bore is 25 mm
Light series whose bore is 5 mm

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Machine Design
A crankshaft is a __________ shaft.

Transmission
Machine frame
None of these
Machine

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Machine Design
The ratio of pitch circle diameter in millimeters to the number of teeth, is called

Diametral pitch
None of these
Circular pitch
Module

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