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Workshop Technology

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

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

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Workshop Technology
Thermit welding is often used in

Replacing broken gear teeth
Joining rails, truck frames and locomotive frames etc.
Repairing broken shears
All of these

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Workshop Technology
The property of sand due to which the sand grains stick together is called

Adhesiveness
Cohesiveness
Permeability
Collapsibility

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Workshop Technology
A taper provided on the pattern for its easy and clean withdrawal from the mould is known as

Machining allowance
Shrinkage allowance
Draft allowance
Distortion allowance

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Workshop Technology
The adhesiveness is the property of sand due to which

It clings to the sides of a moulding box
It evolves a great amount of steam and other gases
The sand grains stick together
None of these

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Workshop Technology
In sheet metal blanking, shear is provided on punches and dies so that

Press load is reduced
Warping of sheet is minimized
Good cut edge is obtained
Cut blanks is straight

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