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Workshop Technology

Workshop Technology
The cutting edge of a chisel should be

Case hardened
Hardened and tempered
Tempered
Hardened

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Workshop Technology
In submerged arc welding, an arc is produced between a

Carbon electrode and the work
Bare metal electrode and the work
Metal electrode and the work
Two tungsten electrodes and the work

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Workshop Technology
For gas welding, the pressure desired at the welding torch for oxygen is

280 to 560 kN/m²
560 to 840 kN/m²
7 to 103 kN/m²
70 to 280 kN/m²

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Workshop Technology
In a four high rolling mill, the diameter of backing up rolls is ________ the diameter of working rolls.

Larger than
None of these
Equal to
Smaller than

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Workshop Technology
V-block is used to

Check the trueness of flat surfaces
None of these
Locate centres of round rods
Check the surface roughness

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Workshop Technology
The machining allowance provided on patterns depends upon

Size and shape of casting
All of these
Type of casting metal
Method of casting used

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