Chapter 6 TESTING OF MATERIALS MCQs 10 min Score: 0 Attempted: 0/10 Subscribe 1. . What is tensile strength of brass? (A) 550 MPa (B) 220 MPa (C) 350 MPa (D) 760 MPaShow All Answers 2. . The ability of the material to withstand tensile force, without breaking, is known as ______ (A) Yield strength (B) Tensile strength (C) Compressive strength (D) Creep strengthShow All Answers 3. . With an increase in the degree of cold working, tensile strength of material ______ (A) Increases (B) Decreases (C) Remains constant (D) First decreases then increaseShow All Answers 4. . Which hardness test is most widely used in the US? (A) Brinell (B) Vickers (C) Shore (D) RockwellShow All Answers 5. . Rockwell test utilizes ___________ a measure of hardness. (A) Load (B) Depth of indentation (C) Diameter of indentation (D) Time of loadingShow All Answers 6. . A minor load of _________ is applied to seat the specimen in the Rockwell test. (A) 1 kg (B) 5 kg (C) 10 kg (D) 150 kgShow All Answers 7. . In what terms, fatigue life is measured? (A) Time of failures (B) Number of cycles of failure (C) Stress of failure (D) Appearance of fractureShow All Answers 8. . What term is used for the maximum stress at which material fail on a specified number of cycle? (A) Fatigue strength (B) Fatigue life (C) Ultimate tensile strength (D) Endurance limitShow All Answers 9. . Which ferrous material doesn’t show fatigue limit? (A) Cast iron (B) Wrought iron (C) Austenitic stainless steel (D) Low carbon steelShow All Answers 10. . Which of the following show a fatigue limit? (A) Titanium (B) Cast iron (C) Magnesium (D) Al-Mg alloyShow All Answers
