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MCQs 1: What is meant by low angle boundary?

Low angle boundary represents a boundary between crystalline region and its surroundings Low angle boundary is a surface defect which has angular misorientation between the grains Both a. and b. None of the above
Answer Explanation

MCQs 2: Which process is used to remove internal stresses from a metal?

Annealing Cold working Both a. and b. None of the above
Answer Explanation

MCQs 3: Select the correct option which shows mechanical property of ceramic materials?

Non-crystalline ceramics become brittle below recrystallization temperature At high temperatures ceramics have favorable properties Ceramic products are resistant to oxidation Ceramics can be used as a moderator
Answer Explanation

MCQs 4: Ceramics having nuclear applications can be used as

moderators controls Both a. and b. None of the above
Answer Explanation

MCQs 5: What is the effect of L/D ratio on compressive strength?

compressive strength increases and then remains constant as L/D ratio increases compressive strength decreases and then increases as L/D ratio increases compressive strength decreases and then remains constant as L/D ratio increases none of the above
Answer Explanation

MCQs 6: Which of the following statements is/are false? 1. Ball indenter in Rockwell hardness test is made of diamond 2. Brale indenter in Rockwell hardness test is made of diamond 3. Micro hardness test is used to measure hardness of thin brittle materials

Only 1 Only 2 Only 3 All the statements are false
Answer Explanation

MCQs 7: What does primary creep in creep curve indicate?

Due to down deformation, resistance of metal increases Due to down deformation, resistance of metal decreases It represents high strain rate It represents creep at constant rate
Answer Explanation

MCQs 8: What are the metal requirements to have creep resistance property?

Low melting point High oxidation resistance Both a. and b. None of the above
Answer Explanation

MCQs 9: Which type of microscope is used to determine particle diameter between (10 to 0.001 μ)?

Optical microscope Electron microscope Both a. and b. None of the above
Answer Explanation

MCQs 10: What is meant by specific surface?

surface area per unit volume surface area per unit weight surface weight per unit area none of the above
Answer Explanation

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