Piercing is an operation of cutting

Workshop Technology
Piercing is an operation of cutting

A number of holes evenly spaced in a regular pattern on a sheet of metal

A cylindrical hole in a sheet of metal by the punch and the die

A hole (other than cylindrical) in a sheet of metal by the punch and the die

A flat sheet to the desired shape

A number of holes evenly spaced in a regular pattern on a sheet of metal

A cylindrical hole in a sheet of metal by the punch and the die

A hole (other than cylindrical) in a sheet of metal by the punch and the die

A flat sheet to the desired shape

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Workshop Technology
Which one of the following material will require the largest size of riser for the same size of casting?

Copper

Aluminium

Cast iron

Steel

Copper

Aluminium

Cast iron

Steel

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Workshop Technology
A two high rolling mill consists of two rolls which rotate

At different speeds and in the same direction

At the same speed but in opposite direction

At the same speed and in the same direction

At different speeds and in the opposite direction

At different speeds and in the same direction

At the same speed but in opposite direction

At the same speed and in the same direction

At different speeds and in the opposite direction

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Workshop Technology
In electric resistance welding, pressure applied varies from

5 to 10 MPa

25 to 55 MPa

10 to 25 MPa

1 to 5 MPa

5 to 10 MPa

25 to 55 MPa

10 to 25 MPa

1 to 5 MPa

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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

Molten metal is forced into mould under high pressure

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

None of these

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

Molten metal is forced into mould under high pressure

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

None of these

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Workshop Technology
Loam sand is a mixture of

70% sand and 30% clay

50% sand and 50% clay

90% sand and 10% clay

30% sand and 70% clay

70% sand and 30% clay

50% sand and 50% clay

90% sand and 10% clay

30% sand and 70% clay

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Workshop Technology

Workshop Technology Piercing is an operation of cutting

Workshop Technology Which one of the following material will require the largest size of riser for the same size of casting?

Workshop Technology A two high rolling mill consists of two rolls which rotate

Workshop Technology In electric resistance welding, pressure applied varies from

Workshop Technology In permanent mould casting method

Workshop Technology Loam sand is a mixture of

Workshop Technology
Piercing is an operation of cutting

Workshop Technology
Which one of the following material will require the largest size of riser for the same size of casting?

Workshop Technology
A two high rolling mill consists of two rolls which rotate

Workshop Technology
In electric resistance welding, pressure applied varies from

Workshop Technology
In permanent mould casting method

Workshop Technology
Loam sand is a mixture of