Multiple Choice
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
A) adhesiveness of sand
B) plasticity of sand
C) porosity of sand
D) refractoriness of sand
Correct Answer:
Verified
Correct Answer:
Verified
Q8: Distortion in castings can be reduced by<br>A)modifying
Q9: The contraction allowance for magnesium is around<br>A)5
Q10: The hardness of the mould is affected
Q11: Composition of cast iron can be better
Q12: Permeability of sand decreases as<br>A)permeability increases<br>B)moisture content
Q14: On the interior surfaces the draft allowance
Q15: Which of the following facilitates shaking and
Q16: In furan process, furan resins are primarily
Q17: Annealing of aluminium castings<br>A)improves ductility<br>B)relieves micro stresses<br>C)reduces
Q18: Tin coated low carbon steel chaplets are