WORKSHOP TECHNOLOGY QUIZ

Piercing

Blanking

Punching

Shearing

All materials to be cast

Only shrinkage allowance

All materials of the pattern

All pattern allowances

5 to 10 MPa

1 to 5 MPa

25 to 55 MPa

10 to 25 MPa

All of these

Tensile strength

Hardness

Yield strength

Joining rails, truck frames and locomotive frames etc.

Repairing broken shears

Replacing broken gear teeth

All of these

For necking down a piece of work

For punching a hole

For finishing flat surfaces

To finish the punched hole

Dry sand

Green sand

Parting sand

Loam sand

Irregular shape

Symmetrical shape about vertical axis

Symmetrical shape about horizontal axis

Nonferrous metal only

Oxidizing flame and leftward technique

Neutral flame and rightward technique

Neutral flame and leftward technique

Carburising flame and rightward technique

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

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

Any one of the above