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Machine Design

Machine Design
The following type of nut is used with alien bolt

Castle nut
Any one of the above
Slotted nut
Hexagonal nut

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Machine Design
The washer is generally specified by its

Mean diameter
Outer diameter
Hole diameter
Thickness

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Machine Design
If T₁ and T₂ are the tensions on the tight and slack sides of the belt respectively, and Tc is the centrifugal tension, then initial tension in the belt is equal to

(T₁ + T₂ + Tc)/2
T₁ - T₂ + Tc
T₁ + T₂ + Tc
(T₁ - T₂ + Tc)/2

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Machine Design
A tapered key which fits in a key way in the hub and is flat on the shaft, is known as

Feather key
Flat saddle key
Gib-head key
Wood ruff key

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Machine Design
The design of the pressure vessel is based on

Hoop stress
None of these
Longitudinal and hoop stress
Longitudinal stress

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Machine Design
In order to have smooth operation, the minimum number of teeth on the smaller sprocket, for moderate speeds, should be

17
21
25
15

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