MECHANICAL ENGINEERING

(A) permanent mould casting
(B) slush casting
(C) die casting
(D) centrifugal casting

(A) small
(B) large
(C) very large
(D) not provided

(A) ram the sand harder at the pattem face with
decreasing hardness towards the back ofthe
mould.
(B) ram the sand harder at the back ofthe mould
and softer on the pattem face.
(C) produce uniform sand hardness throughout
the mould.
(D) produce uniform packing of sand in the
mould.

(A) smoothing and cleaning out depressions in
the mould.
(B) cleaning the moulding sand.
(C) moistening the sand around the edge before
removing pattern.
(D) reinforcement of sand in the top part of the
moulding box.

(A) achieve directional solidification.
(B) reduce blow holes.
(C) reduce the freezing time.
(D) increase the smoothness of the casting
surface.

(A) drag
(B) cheek
(C) cope
(D) None ofthe above

(A) light in weight
(B) easy to work
(C) corrosion resistant
(D) All of the above

(A) small castings
(B) large castings
(C) complicated castings
(D) large scale production of castings