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Manufacturing And Production Technology

Manufacturing And Production Technology
The silicon carbide abrasive is chiefly used for grinding

All of these
Cemented carbide
Cast iron
Ceramic

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Manufacturing And Production Technology
A drill bit of 20 mm diameter rotating at 500 r.p.m. with a feed rate of 0.2 mm/revolution is used to drill a through hole in a mild steel plate 20 mm thickness. The depth of cut in this drilling operation is

10 mm
20 mm
100 mm
0.2 mm

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Manufacturing And Production Technology
The process of changing the shape of grinding wheel as it becomes worn due to breaking away of the abrasive and bond, is called

Dressing
Facing
Truing
Clearing

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Manufacturing And Production Technology
The operation of smoothing and squaring the surface around a hole is known as

Counter-boring
Spot facing
Trepanning
Counter-sinking

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Manufacturing And Production Technology
When 3-2-1 principle is used to support and locate a three dimensional work-piece during machining, the number of degrees of freedom that are restricted is

8
7
10
9

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Manufacturing And Production Technology
For turning small taper on long workpiece, the suitable method is

By a form tool
By swiveling the compound rest
By a taper turning attachment
By setting over the tail stock

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