Shift is a casting defect which

Workshop Technology
Shift is a casting defect which

Results in a mismatching of the top and bottom parts of a casting

Occurs as sand patches on the upper surface of a casting

Occurs near the ingates as rough lumps on the surface of a casting

Results in general enlargement of a casting

Results in a mismatching of the top and bottom parts of a casting

Occurs as sand patches on the upper surface of a casting

Occurs near the ingates as rough lumps on the surface of a casting

Results in general enlargement of a casting

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Workshop Technology
The purpose of a gate is to

Delivers molten metal into the mould cavity

Act as a reservoir for the molten metal

Delivers molten metal from pouring basin to gate

Feed the molten metal to the casting in order to compensate for the shrinkage

Delivers molten metal into the mould cavity

Act as a reservoir for the molten metal

Delivers molten metal from pouring basin to gate

Feed the molten metal to the casting in order to compensate for the shrinkage

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Workshop Technology
The chisel used for cutting key ways is

Cape chisel

Round nose chisel

Diamond pointed chisel

Flat chisel

Cape chisel

Round nose chisel

Diamond pointed chisel

Flat chisel

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Workshop Technology
An oxidising process used for aluminium and magnesium articles is called

Sherardizing

Anodizing

Parkerising

Galvanizing

Sherardizing

Anodizing

Parkerising

Galvanizing

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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
In arc welding, the temperature of heat produced by the electric arc is of the order of

4000°C to 5000°C

3000°C to 4000°C

5000°C to 6000°C

6000°C to 7000°C

4000°C to 5000°C

3000°C to 4000°C

5000°C to 6000°C

6000°C to 7000°C

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Workshop Technology

Workshop Technology Shift is a casting defect which

Workshop Technology The purpose of a gate is to

Workshop Technology The chisel used for cutting key ways is

Workshop Technology An oxidising process used for aluminium and magnesium articles is called

Workshop Technology Extrusion

Workshop Technology In arc welding, the temperature of heat produced by the electric arc is of the order of

Workshop Technology
Shift is a casting defect which

Workshop Technology
The purpose of a gate is to

Workshop Technology
The chisel used for cutting key ways is

Workshop Technology
An oxidising process used for aluminium and magnesium articles is called

Workshop Technology
Extrusion

Workshop Technology
In arc welding, the temperature of heat produced by the electric arc is of the order of