This set of Engineering Materials & Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Thermoplastics – 1”. 1. Thermoplastics are formed by ________ a) Addition polymerization b) Copolymerization c) Condensation polymerization d) Isomerism 2. Which of the following is not a property of thermoplastics? a) Recyclable b) Soft and weak c) Easy to mold … Read more
This set of Engineering Materials and Metallurgy Interview Questions and Answers for freshers focuses on “Ceramics – 2”. 1. What is the coefficient of thermal expansion of silicon carbide? a) 9 * 10-6 b) 4.3 * 10-6 c) 3.2 * 10-6 d) 10.6 * 10-6 2. Silicon carbides resist oxidation up to ______ a) 100oC … Read more
This set of Engineering Materials & Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Ceramics – 1”. 1. Which of the following is a property of ceramics? a) Low strength b) Low melting point c) Resistant to corrosion d) Bad insulation 2. Porcelain is a type of ______ ceramic. a) whiteware b) stone c) … Read more
This set of Engineering Materials & Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Polymers and Polymerization, Polymer Additives”. 1. Which of the following is not a characteristic trait of polymer materials? a) Low density b) Resistant to chemical attack c) Low cost d) High strength 2. The number of repeating units in a … Read more
This set of Engineering Materials and Metallurgy Questions and Answers for Freshers focuses on “Miscellaneous Alloying Elements – 2”. 1. Which nickel alloy is used as a substitute in tableware and jewelry? a) Nickel-iron b) Nickel-copper c) Nickel-chromium d) Nickel-silver 2. Which of the following is an application of Inconel? a) Furnace chamber b) Chemical … Read more
This set of Engineering Materials & Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Miscellaneous Alloying Elements – 1”. 1. Which element is known as the softest heavy metal? a) Copper b) Lead c) Iron d) Nickel 2. What is the melting point of lead? a) 327oC b) 419oC c) 1091oC d) 1749oC 3. … Read more
This set of Engineering Materials & Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Magnesium and its Alloys”. 1. What is the specific gravity of magnesium? a) 1.74 b) 2.7 c) 6.3 d) 8.9 2. What is the melting point of magnesium? a) 419oC b) 650oC c) 1091oC d) 2562oC 3. Which of the … Read more
This set of Engineering Materials & Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Bearing Materials”. 1. White bearing metals contain ______ of antimony. a) 10% b) 25% c) 50% d) 75% 2. Tin-based or lead-based alloys are types of ______ a) White metals b) Copper base alloys c) Aluminum base alloys d) Ceramics … Read more
This set of Engineering Materials and Metallurgy Interview Questions and Answers focuses on “Copper and its Alloys – 2”. 1. Tin content in bronzes is kept below 12% due to their tendency to become _______ a) Less conductive b) Brittle c) Radioactive d) Less corrosion resistant 2. Bell bronze is an alloy containing _______ a) … Read more
This set of Engineering Materials & Metallurgy Multiple Choice Questions & Answers (MCQs) focuses on “Copper and its Alloys – 1”. 1. How much copper is present in deoxidized copper? a) > 99.9% b) > 99.85% c) > 99.5% d) > 99.35% 2. High conductivity copper is used ______ a) In electrical engineering b) To … Read more
