A.graphite
B.chromite
C.magnesium powder
D.any of the above
Related Mcqs:
- Permeability of moulding sand is increased due to/by
- The main constituent of moulding sand is
- The sand mass does not fall out of the moulding box but is held firmly in it when the moulding box is lifted. This is due to the property of
- Total installed cost of a centrifugal pump coupled with drive and capable of developing 1000 ft head at 500 gpm is to be calculated using Rs. 55000 as the cost of a pump of 500 ft head at 1000 gpm. The cost estimation method involves the term capacity which will be taken as (gpm)x (head)y where
- In case of carbondioxide moulding, the binder used is generally
- The purpose of sometimes adding exothermic materials to sand is
- The permeability of moulding sand depends on
- Refractoriness in the moulding sand is due to the presence of
- The purpose of clay in a moulding sand is to
- First step in reclaiming the moulding and core sand is
