1. . What is tensile strength of brass?
(A) 550 MPa
(B) 220 MPa
(C) 350 MPa
(D) 760 MPa
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 strength
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 increase
4. . Which hardness test is most widely used in the US?
(A) Brinell
(B) Vickers
(C) Shore
(D) Rockwell
5. . Rockwell test utilizes ___________ a measure of hardness.
(A) Load
(B) Depth of indentation
(C) Diameter of indentation
(D) Time of loading
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 kg
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 fracture
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 limit
9. . Which ferrous material doesn’t show fatigue limit?
(A) Cast iron
(B) Wrought iron
(C) Austenitic stainless steel
(D) Low carbon steel
10. . Which of the following show a fatigue limit?
(A) Titanium
(B) Cast iron
(C) Magnesium
(D) Al-Mg alloy