This set of Tricky Engineering Materials and Metallurgy Questions and Answers focuses on “Annealing – 2”. 1. Process annealing is applied to which kind of materials? a) Steel castings b) Low carbon steels c) High carbon steels d) Medium carbon steels 2. For process annealing, the steel is heated at a temperature range of _________ … Read more
This set of Engineering Materials & Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Annealing – 1”. 1. Which of the following factors does not influence the variety and quality of metal? a) Rate of heating and cooling b) Quenching medium c) Furnace d) Grain size 2. How does the rate of cooling affect … Read more
This set of Engineering Materials & Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Bonding in Solids”. 1. What is the bond energy of iron? a) 7.8 KJ/mol b) 401.3 KJ/mol c) 639.5 KJ/mol d) 1692.9 KJ/mol 2. Which type of bond is formed in silicon dioxide? a) Metallic b) Covalent c) Ionic d) … Read more
This set of Engineering Materials & Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Diffraction”. 1. In which case can the rotating crystal method for determining crystal structure be used? a) Single crystal b) Polycrystalline c) Fine-grained polycrystalline d) Cold worked crystals 2. What is the resultant image formed for very fine grains in … Read more
This set of Engineering Materials & Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Types of Solids, Crystal Structures and Lattices”. 1. Lead is a metallic crystal having a _______ structure. a) FCC b) BCC c) HCP d) TCP 2. Which of the following has a HCP crystal structure? a) W b) Mo c) … Read more
This set of Engineering Materials & Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Hume Rothery’s Rules, Types of Solid Solutions”. 1. Why are Hume Rothery’s rules followed? a) Extensive solid solution b) Liquid solution c) Weak solid solution d) Extensive liquid solution 2. According to Hume Rothery’s rules, size of atoms must not … Read more
This set of Engineering Materials & Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Transformation of Steel and Cast Iron”. 1. Composition up to 0.008% carbon is considered as _________ a) Pure iron b) Steel c) Cast iron d) Annealed steel 2. Steels containing 0.8% C are called ________ a) Eutectoid b) Hypoeutectoid c) … Read more
This set of Engineering Materials & Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Iron and Iron Carbide System”. 1. The eutectic point in the iron-iron carbide phase diagram occurs at __________ weight % composition of carbon. a) 0.022 b) 0.77 c) 2.11 d) 4.30 2. At what temperature does δ ferrite melt? a) … Read more
This set of Engineering Materials & Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Iron-Carbon System and their Alloys”. 1. Alloys containing 2.0-6.7% carbon are considered as __________ a) Steel b) Cast-iron c) Aluminum d) Brass 2. The existence of two or more crystal structures for any substance, depending on temperature, is known as … Read more
This set of Engineering Materials & Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Phases and Phase Diagrams”. 1. Which of the following is not a name for phases present in a system of material in various conditions? a) Phase diagram b) Equilibrium diagram c) Interstitial diagram d) Constitutional diagram 2. Which of the … Read more
