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Workshop Technology

Workshop Technology
The sand used for making cores is

Oil sand
Green sand
Dry sand
Loam sand

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Workshop Technology
When a hole or cavity to be cored is not in line with the parting surface, then a ________ is used.

Balanced core
Horizontal core
Vertical core
Drop core

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Workshop Technology
The advantage of Thermit welding is that

All of these
Weld cools almost uniformly
All parts of the weld section are molten at the same time
Results in a minimum problem with internal residual stresses

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Workshop Technology
In shielded arc welding

Large electrode is used
Welding rod coated with slag is used
Welding rod coated with fluxing material is used
None of the listed here

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Workshop Technology
When the file is moved to and fro over the work, it is known as

Draw filing
None of these
Cross filing
Pull and push filing

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Workshop Technology
Seam welding is best adopted for metal thickness ranging from

5 to 8 mm
8 to 10 mm
0.025 to 3 mm
3 to 5 mm

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