WORKSHOP TECHNOLOGY QUIZ

16 mm/m

20 mm/m

26 mm/m

10 mm/m

Oxidizing flame and leftward technique

Neutral flame and rightward technique

Neutral flame and leftward technique

Carburising flame and rightward technique

Cutting depends upon the direction of force

Return stroke

Both forward and return strokes

Forward stroke

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

Produce uniform sand hardness throughout the mould

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

Smaller than

None of these

Larger than

Equal to

20 mm

20.035 mm

20.025 mm

19.975 mm

First from left to right and then from right to left

Either from left to right or from right to left

From left to right

From right to left

Strengthened

Sharpened

All of the listed here

Set

Rubbing on wood

Using file card

Washing it with dilute acid

Washing it with water

Results in general enlargement of the casting

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

Occurs as sand patches on the upper surface of a casting

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