Multiple Choice
Which of the following is used as protective admixture in moulding sand for magnesium castings?
A) Boric acid
B) Sublimed sulphur
C) Fluoric additives
D) Any of the above
Correct Answer:
Verified
Correct Answer:
Verified
Q10: Casting made in relatively simple shapes and
Q11: Chaplets are provided to<br>A)reduce core sag<br>B)support heavy
Q12: A casting process which can produce hollow
Q13: For stress relieving, castings are<br>A)heated to low
Q14: The advantage of centrifugal casting is<br>A)dense castings<br>B)elimination
Q16: All of the following are non-destructive method
Q17: All of the following are boring tools
Q18: The advantage of oxygen enriched cupola is<br>A)higher
Q19: For sterite refractory bricks are attacked by<br>A)basic
Q20: Addition of nickel to cast iron increases<br>A)hardness<br>B)corrosion