197. A big advantage of using synthetic sand in foundry shop is that
A.It is less costly
B.Its properties can be controlled easily
C.It possesses high moisture
D.It possesses high % of clay
198. Which of the following materials has more shrinkage allowance
A.Cast iron
B.Brass
C.Lead
D.Aluminium alloy
199. Which of the following provides an added projection on a pattern and forms a seat to support and locate the core in the mould
A.Mould print
B.Core print
C.Drag
D.Cope
200. The mould is housed in a
A.Flask
B.Cope
C.Drag
D.Cheek
201. Loose piece patterns are
A.A sort of split patterns
B.Used when the pattern cannot be drawn from the mould
C.Similar to core prints
D.Never used in foundry work
202. Cores are used to
A.Make desired recess in castings
B.Strengthen moulding sand
C.Support loose pieces
D.Remove pattern easily
203. Shrinkage allowance is made by
A.Adding to external and internal dimensions
B.Subtracting from external and internal dimensions
C.Subtracting from external dimensions and adding to internal dimensions
D.Adding to external dimensions and subtracting from internal dimensions
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