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Machine Design

Machine Design
If a spring is cut down into two springs, the stiffness of cut springs will be

Same
None of these
Double
Half

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Machine Design
I.S. specifies following total number of grades of tolerances

18
20
22
16

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

2.5 d
2 d
1.6 d
1.2 d

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Machine Design
The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under load W will be

43869
43929
44045
44047

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Machine Design
The ball bearings are, usually, made from

Low carbon steel
High speed steel
High carbon steel
Medium carbon steel

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Machine Design
A flanged pipe joint will be a leak-proof joint, if the circumferential pitch of the bolts is (where d = Diameter of bolt hole)

Equal to inside diameter of pipe
Less than 20d
Greater than 30d
Between 20d and 30d

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