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Materials and construction
| 1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
| 2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
| Q1 ⇒ To improve the machinability of steel by its softening, it is subjected to annealing [other wrong options] [Discuss in forum] |
| Q2 ⇒ The hardest material just prior to diamond in Mho's scale is corrundum [other wrong options] [Discuss in forum] |
| Q3 ⇒ __________ is used for determining the tensile strength of steels. Universal testing machine [other wrong options] [Discuss in forum] |
| Q4 ⇒ 18/8 steel is a/an __________ stainless steel. austenitic [other wrong options] [Discuss in forum] |
| Q5 ⇒ Lead lined equipments & vessels are suitable for handling sulphuric acid upto 60°C. [other wrong options] [Discuss in forum] |
| Q6 ⇒ The metals occuring at the lower most position in the electromotive series resist corrosion very strongly. [other wrong options] [Discuss in forum] |
| Q7 ⇒ __________ iron is produced, when molten pig iron is allowed to cool gradually. Grey cast [other wrong options] [Discuss in forum] |
| Q8 ⇒ Addition of __________ to the steel helps in increasing the residual magnetism in steel used for making magnets. cobalt [other wrong options] [Discuss in forum] |
| Q9 ⇒ Liners of a ball mill are never made of lead [other wrong options] [Discuss in forum] |
| Q10 ⇒ Acetaldehyde is produced by hydration of acetylene in a sulphuric acid solution of mercuric sulphate. Hydration tower is made of rubber lined mild steel [other wrong options] [Discuss in forum] |
| Q11 ⇒ Bell metal is an alloy of copper & tin [other wrong options] [Discuss in forum] |
| Q12 ⇒ Which of the following mechanical properties of a material is most structure insensitive ? Modulus of elasticity (young's modulus). [other wrong options] [Discuss in forum] |
| Q13 ⇒ Hastelloy comprises of molybdenum and nickel [other wrong options] [Discuss in forum] |
| Q14 ⇒ The fermentor used for the production of ethyl alcohol from molasses is made of copper bearing steel [other wrong options] [Discuss in forum] |
| Q15 ⇒ An alloy of iron containing 4% carbon is called none of these [other wrong options] [Discuss in forum] |
| Q16 ⇒ Which of the following is not a copper based alloy with nickel ? Inconel [other wrong options] [Discuss in forum] |
| Q17 ⇒ Graphite is corroded by none of these [other wrong options] [Discuss in forum] |
| Q18 ⇒ Addition of 2% nickel in steel makes it suitable for making boiler plates, rivets etc. [other wrong options] [Discuss in forum] |
| Q19 ⇒ Cast iron compared to steel is better in fluidity & castability [other wrong options] [Discuss in forum] |
| Q20 ⇒ Wrought iron is a suitable material of construction for handling __________ solutions. alkalis & alkaline [other wrong options] [Discuss in forum] |
| Or |