Plaster patterns and core boxes are made of
A) White powder
B) Plaster of Paris
C) Gypsum cement
D) Bone china clay
Correct Answer:
Verified
Q15: Hot blast of air is supplied to
Q16: Core prints are
A)made separately in the mould
Q17: In die casting
A)there is no need of
Q18: The water content of green sand is
Q19: Tin coated low carbon steel chaplets are
Q20: Scabs may be caused by
A)low permeability of
Q21: The order of surface finish possible in
Q22: The contraction allowance for magnesium is around
A)5
Q24: Composition of cast iron can be better
Q25: By compacting the sand
A)both density as well
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents