1. better packing of sand near pattern
2. better packing of sand near the flask
3. uniform sand density in the mould
4. none of the above
none of the above
1. very slowly
2. rather rapidly
3. at same rate as for other casting processes
4. at any rate
rather rapidly
1. feed the casting at a rate consistent with the rate of solidification
2. act as a reservoir for molten metal
3. help feed the castings until the solidification takes place
4. feed molten from pouring basin to gate
act as a reservoir for molten metal
1. green sand moulding
2. bench moulding
3. pit moulding
4. machine moulding
machine moulding
1. fine-grain
2. coarser-grain
3. medium grain
4. all are equally good
coarser-grain
1. fine-grain
2. medium grain
3. coarser- grain
4. any of the above
coarser- grain
1. feed the casting at a rate consistent with the rate of solidification
2. act as a reservoir for molten metal
3. help feed the casting until the solidification takes place
4. feed molten metal from pouring basin to gate
help feed the casting until the solidification takes place
1. a round sieve
2. a long, flat metal plate fitted with an offset handle
3. used to make or repair corners in the mould
4. used to scoop sand deep in the mould
used to make or repair corners in the mould
1. catalyst
2. parting agent
3. flux
4. binder
binder
1. black colour
2. yellow colour
3. red colour
4. blue colour
red colour