- (A) made by adding carbon in steel
- (B) refined from cast iron
- (C) an alloy of iron and carbon with varying quantities of phosphorus and sulphur
- (D) extensively used for making cutting tools
- (E) extremely brittle
Mechanical Engineering Mcqs
- (A) which are destroyed by burning
- (B) which after their destruction are recycled to produce fresh steel
- (C) which are deoxidised in the ladle with silicon and aluminium
- (D) in which carbon is completely burnt
- (E) which have poor properties due to improper manufacturing
- (A) carbon
- (B) vanadium
- (C) manganese
- (D) cobalt
- (E) copper
- (A) 0.025%
- (B) 0.06%
- (C) 0.1%
- (D) 0.25%
- (E) 0.8%.
- (A) chromium and nickel
- (B) sulphur, phosphorus, lead
- (C) vanadium, aluminium
- (D) tungsten, molybdenum, vanadium, chromium
- (E) zinc
- (A) ferrite
- (B) pearlite
- (C) anstenite
- (D) ferrite and cementite
- (E) ferrite and pearlite
- (A) 0.2%
- (B) 0.8%
- (C) 1.3%
- (D) 2%
- (E) 6.3%.
- (A) in a random manner
- (B) in a haphazard way
- (C) in circular motion
- (D) back and forth like tiny pendulums
- (E) do not move
- (A) 770°C
- (B) 910°C
- (C) 1440°C
- (D) 1539°C
- (E) none of the above
- (A) body centred cubic
- (B) face centred cubic
- (C) hexagonal close packed
- (D) cubic structure
- (E) orthorhombic crystal
