The welding process used to join the ends of two pipes of uniform cross-section, is

Workshop Technology
The welding process used to join the ends of two pipes of uniform cross-section, is

Projection welding

Seam welding

Upset butt welding

Spot welding

Projection welding

Seam welding

Upset butt welding

Spot welding

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Workshop Technology
A three high rolling mill consists of three rolls placed one above the other. Which of the following statement is correct?

The upper and middle rolls rotate in the same direction whereas the bottom roll rotates in opposite direction

The bottom and middle roll rotate in the same direction

The upper and bottom rolls rotate in the same direction whereas the middle roll rotates in opposite direction

Any one of the above

The upper and middle rolls rotate in the same direction whereas the bottom roll rotates in opposite direction

The bottom and middle roll rotate in the same direction

The upper and bottom rolls rotate in the same direction whereas the middle roll rotates in opposite direction

Any one of the above

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Workshop Technology
The electrodes used in spot welding have a tip of

Copper

Aluminium

Brass

Stainless steel

Copper

Aluminium

Brass

Stainless steel

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Workshop Technology
Loam sand is a mixture of

90% sand and 10% clay

70% sand and 30% clay

30% sand and 70% clay

50% sand and 50% clay

90% sand and 10% clay

70% sand and 30% clay

30% sand and 70% clay

50% sand and 50% clay

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Workshop Technology
In permanent mould casting method

Molten metal is poured in a metallic mould, retained in the mould long enough for the outer skin to solidify and finally mould is turned over to remove molten metal still in molten condition

None of these

Molten metal is poured and allowed to solidify while the mould is revolving

Molten metal is forced into mould under high pressure

Molten metal is poured in a metallic mould, retained in the mould long enough for the outer skin to solidify and finally mould is turned over to remove molten metal still in molten condition

None of these

Molten metal is poured and allowed to solidify while the mould is revolving

Molten metal is forced into mould under high pressure

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

It evolves a great amount of steam and other gases

None of these

The sand grains stick together

It clings to the sides of a moulding box

It evolves a great amount of steam and other gases

None of these

The sand grains stick together

It clings to the sides of a moulding box

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Workshop Technology

Workshop Technology The welding process used to join the ends of two pipes of uniform cross-section, is

Workshop Technology A three high rolling mill consists of three rolls placed one above the other. Which of the following statement is correct?

Workshop Technology The electrodes used in spot welding have a tip of

Workshop Technology Loam sand is a mixture of

Workshop Technology In permanent mould casting method

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

Workshop Technology
The welding process used to join the ends of two pipes of uniform cross-section, is

Workshop Technology
A three high rolling mill consists of three rolls placed one above the other. Which of the following statement is correct?

Workshop Technology
The electrodes used in spot welding have a tip of

Workshop Technology
Loam sand is a mixture of

Workshop Technology
In permanent mould casting method

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