Which of the following metals has the lowest melting point?
A) Tin
B) Silver
C) Zinc
D) Magnesium
Correct Answer:
Verified
Q7: If an old casting is to be
Q8: The strength of the sand is high
Q9: A mould which has good erosion resistance
Q10: During the passage of molten metal through
Q11: Hot spots are generally found in castings
A)symmetrical
Q13: Slag in a blast furnace is
A)lighter than
Q14: Sprues are generally
A)tapered upwards
B)tapered downwards
C)uniform size
Q15: When bench moulding is adopted using three
Q16: Cores are made from core sand mixed
Q17: Thermal efficiency of cupola is in the
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