Chapter 3 FERROUS MATERIAL MCQs 10 min Score: 0 Attempted: 0/10 Subscribe 1. . How much carbon is present in cast irons? (A) Less than 0.05% (B) Up to 1.5% (C) 1.5% to 2% (D) More than 2%Show All Answers 2. . Cast iron is a _____ alloy. (A) Eutectic (B) Eutectoid (C) Peritectic (D) PeritectoidShow All Answers 3. . What kind of steel requires definite amounts of other alloying elements? (A) Carbon steel (B) Alloying steel (C) Stainless steel (D) Tool steelShow All Answers 4. . Which of these is not a function of alloy steels? (A) Increases strength (B) Improves ductility (C) Reduces cost (D) Improves machinabilityShow All Answers 5. . What does AISI steel stand for? (A) American-Indian Steel Institute (B) American-Indian Society of Iron (C) American Iron and Steel Institute (D) Alloys, Iron and Steel InstituteShow All Answers 6. . Steels containing more than 5% of one or more alloying elements are known as ________ (A) HSLA steels (B) High alloy steels (C) Tool and die steels (D) Stainless steelsShow All Answers 7. . Which element causes cementite to behave in a stable manner? (A) Silicon (B) Sulphur (C) Manganese (D) CarbonShow All Answers 8. . What is the effect of phosphorus and sulphur in cast irons? (A) Induces brittleness (B) Increases strength (C) Destabilizes cementite (D) No effectShow All Answers 9. . Which of the following materials has maximum strength? (A) Grey cast iron (B) Plain carbon steel (C) Alloy steel (D) Aluminum alloyShow All Answers 10. . Steels used for automobile bodies and hoods are (A) Medium carbon steel (B) Mild steel (C) High carbon steel (D) Alloy steelShow All Answers
