Destructive Testing

Question 1

Which property cannot be determined from a tensile test?

a. ultimate tensile strength
b. percent elongation
c. percent reduction of area
d. impact strength
e. yield strength

Answer 1

d. impact strength

Question 2

The property that describes the ability of a metal to resist some applied load is:

a. strength
b. toughness
c. hardness
d. ductility
e. none of the above

Answer 2

a. strength

Question 3

The point at which a metal’s behavior changes from elastic to plastic (onset of permanent deformation) is referred to as:

a. yield strength
b. ultimate tensile strength
c. modulus of elasticity
d. Young’s modulus
e. none of the above

Answer 3

a. yield strength

Question 4

Which of the following is an expression for a metal’s ductility?

a. percent elongation
b. percent reduction of area
c. proportional limit
d. both a and b above
e. both b and c above

Answer 4

d. both a and b above

Question 5

The property of metals that describes their resistance to indentation is called:

a. strength
b. toughness
c. hardness
d. ductility
e. none of the above

Answer 5

c. hardness

Question 6

Of the following, which properties can be determined as a result of tensile testing?

a. ultimate tensile strength
b. ductility
c. percent elongation
d. yield strength
e. all of the above

Answer 6

e. all of the above

Question 7

The family of hardness tests that uses both a minor and major load is called:

a. Brinell
b. Vickers
c. Rockwell
d. Knoop
e. none of the above

Answer 7

Rockwell

Question 8

Which of the following tests are referred to as microhardness tests?

a. Rockwell
b. Vickers
c. Knoop
d. Both a and b above
e. both b and c above

Answer 8

e. both b and c above

Question 9

What type of test uses a weighted pendulum that strikes a notched test specimen?

a. Brinell Test
b. fatigue test
c. tensile test
d. crack opening displacement
e. Charpy impact test

Answer 9

e. Charpy impact test

Question 10

Of the following, which is one of the most measurable features of a metal?

a. fatigue
b. hardness
c. soundness
d. tension
e. all of the above

Answer 10

b. hardness

Question 11

Which of the following is not considered a soundness test?

a. tensile
b. face bend
c. fillet break
d. root bend
e. nick-break

Answer 11

a. tensile

Question 12

The property of metals that describes their ability to carry some type of load is:

a. strength
b. toughness
c. hardness
d. ductility
e. none of the above

Answer 12

a. strength

Question 13

For less ductile metals, which method is used to determine the yield strength?

a. drop of beam
b. offset technique
c. stress-strain curve
d. abrupt yielding
e. none of the above

Answer 13

b. offset technique

Question 14

The ability of a metal to absorb energy is called:

a. strength
b. ductility
c. hardness
d. toughness
e. none of the above

Answer 14

d. toughness

Question 15

Calculation of tensile strength is accomplished by dividing the tensile load by:

a. cross-sectional area
b. percent elongation
c. percent reduction of area
d. gauge length
e. none of the above

Answer 15

a. cross-sectional are

Question 16

The metal property describing its freedom from imperfections is:

a. tensile strength
b. soundness
c. impact strength
d. toughness
e. none of the above

Answer 16

b. soundness

Question 17

If a metal exhibits a great deal of elongation prior to fallihg when a tensile load is applied is said to have high:

a. tensile strength
b. hardness
c. impact strength
d. toughness
e. ductility

Answer 17

e. ductility