WORKSHOP TECHNOLOGY QUIZ

Bending a sheet of metal along a curved axis

Cutting a sheet of metal through part of its length and then bending the cut portion

Removal of metal to the desired shape from the edge of a plate

Cutting a sheet of metal in a straight line along the length

One is working roll and three are backing up rolls

All of the four are working rolls

Two are working rolls and two are backing up rolls

Three are working rolls and one is backing up roll

Straight polarity

Both (A) and (B)

None of these

Reversed polarity

Ram the sand harder at the back of the mould and softer on the pattern face

Give uniform sand hardness throughout the mould

Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould

Produce uniform packing of sand in the mould

Cut blanks is straight

Press load is reduced

Warping of sheet is minimized

Good cut edge is obtained

Ferrous materials

Ductile materials

Hard materials

None of these

Distortion allowance

Draft allowance

Shrinkage allowance

Machining allowance

32

14

40

24

Varying the input supply

Changing the secondary turns of the transformer

Any one of the listed here

Changing the primary turns of the transformer

+0.5 mm

+0.05 mm

±0.2 mm

±1 mm