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Machine Design

Machine Design
Whether any core is required in wire ropes

No
Sometimes
Rarely
Yes

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Machine Design
According to I.B.R., shearing resistance required to shear off the rivet per pitch length (in double shear) is (where n = Number of rivets per pitch length)

(π/4) d² × τ × n
1.875 × (π/4) d² × τ × n
3 × (π/4) d² × τ × n
2 × (π/4) d² × τ × n

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Machine Design
The difference between the tooth space and the tooth thickness as measured on the pitch circle, is called

Face width
Working depth
Backlash
Clearance

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Machine Design
For a shaft diameter of 200 mm, the number of bolts in a marine flange coupling should be

6
8
4
10

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Machine Design
In order to withstand resistance to wear, the best profile of gear is

20° involute stub tooth
14½° stub tooth
14½° full depth involute tooth
20° full depth involute tooth

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Machine Design
The shear stress in a beam varies from zero at the outer fibers to a maximum at the________.

None of these
Upper surface
Neutral surface
Lower surface

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