Tandem drawing of wires and tubes is necessary because

Workshop Technology
Tandem drawing of wires and tubes is necessary because

Annealing is needed between stages

Surface finish improves after every drawing stage

It is not possible to reduce at one stage

Accuracy in dimensions is not possible otherwise

Annealing is needed between stages

Surface finish improves after every drawing stage

It is not possible to reduce at one stage

Accuracy in dimensions is not possible otherwise

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Workshop Technology
In order to get uniform thickness of the plate by rolling process, one provides

Antifriction bearings

Camber on the rolls

Offset on the rolls

Hardening of the rolls

Antifriction bearings

Camber on the rolls

Offset on the rolls

Hardening of the rolls

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Workshop Technology
In welding copper alloys with TIG arc welding

Alternating current is used

Any one of the listed here

Direct current with reversed polarity is used

Direct current with straight polarity is used

Alternating current is used

Any one of the listed here

Direct current with reversed polarity is used

Direct current with straight polarity is used

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Workshop Technology
The advantage of Thermit welding is that

All of these

Results in a minimum problem with internal residual stresses

All parts of the weld section are molten at the same time

Weld cools almost uniformly

All of these

Results in a minimum problem with internal residual stresses

All parts of the weld section are molten at the same time

Weld cools almost uniformly

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Workshop Technology
Extrusion

Is extensively used for making bolts and nuts

Is used to improve fatigue resistance of the metal by setting up compressive stresses in its surface

Consists of pressing the metal inside a chamber to force it out by high pressure through an orifice which is shaped to provide the desired form of the finished part

Is used for reducing the diameter of round bars and tubes by rotating dies which open and close rapidly on the work

Is extensively used for making bolts and nuts

Is used to improve fatigue resistance of the metal by setting up compressive stresses in its surface

Consists of pressing the metal inside a chamber to force it out by high pressure through an orifice which is shaped to provide the desired form of the finished part

Is used for reducing the diameter of round bars and tubes by rotating dies which open and close rapidly on the work

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Workshop Technology
The edge of a steel plate cut by oxygen cutting will get hardened when the carbon content is

Less than 0.1 percent

More than 0.3 percent

Less than 0.3 percent

Anywhere between 0.1 to 1 percent

Less than 0.1 percent

More than 0.3 percent

Less than 0.3 percent

Anywhere between 0.1 to 1 percent

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Workshop Technology

Workshop Technology Tandem drawing of wires and tubes is necessary because

Workshop Technology In order to get uniform thickness of the plate by rolling process, one provides

Workshop Technology In welding copper alloys with TIG arc welding

Workshop Technology The advantage of Thermit welding is that

Workshop Technology Extrusion

Workshop Technology The edge of a steel plate cut by oxygen cutting will get hardened when the carbon content is

Workshop Technology
Tandem drawing of wires and tubes is necessary because

Workshop Technology
In order to get uniform thickness of the plate by rolling process, one provides

Workshop Technology
In welding copper alloys with TIG arc welding

Workshop Technology
The advantage of Thermit welding is that

Workshop Technology
Extrusion

Workshop Technology
The edge of a steel plate cut by oxygen cutting will get hardened when the carbon content is