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Machine Design

Machine Design
In order to permit the thermal expansion/contraction of tubing, it should be

Flared
Honed
Bent
Crimped

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Machine Design
According to I.B.R., the efficiency of a triple riveted butt joint with double straps of unequal width (5 rivets per pitch length) should be

63 to 70%
70 to 83%
80 to 90%
45 to 60%

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Machine Design
A key made from a cylindrical disc having segmental cross-section, is known as

Gib head key
Woodruff key
Feather key
Flat saddle key

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

Module
None of these
Diametral pitch
Circular pitch

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Machine Design
18/8 steel contains

18% nickel and 8% chromium
18% vanadium and 8% nickel
18% nickel and 8% vanadium
18% chromium and 8% nickel

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Machine Design
In designing a sleeve coupling, length of the sleeve is taken as (where d = Diameter of the shaft)

d + 17 mm
3.5 d
2d + 20 mm
2d + 13 mm

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