A. 50 : 50
B. 40 : 60
C. 60 : 40
D. 20 : 80
E. 80 : 20
A. 0.02%
B. 0.3%
C. 0.63%
D. 0.8%
E. 1.2%.
A. mild steel
B. cast iron
C. H.S.S.
D. high carbon
E. german silver
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
[B].
Answer: Option A
Explanation:
No answer description available for this question.
A. improves wear resistance, cutting ability and toughness
B. refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant proper¬ties
C. improves cutting ability and reduces hardenability
D. gives ductility, toughness, tensile strength and anticorrosion properties
E. none of the above
A. 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe
B. 92.5% aluminium and, 4% copper, 2% nickel and 1.5% Mg
C. 90% aluminium and 90% copper
D. 90% magnesium and 9% aluminium with some copper
E. 90% magnesium and 10% tin