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CWI CHP Practice tests > Chapter 6 Practice Test > Flashcards

Chapter 6 Practice Test Flashcards

1
Q

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

A

c. hardness

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2
Q

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

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

A

a. strength

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3
Q

Generally, as strength increases for carbon steels, the ductility:

a. increases
b. stays the same
c. decreases
d. is not related to strength
e. none of the above

A

c. decreases

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4
Q

The property that describes the ability of a metal to deform when stressed is:

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

A

d. ductility

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5
Q 
The type of strength related to a metal's behavior when the load is applied in a cyclic manner
is:
a. tensile
b. compressive
c. torsional
d. impact
e. fatigue
A

e. fatigue

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6
Q

The yield strength of a material is determined by:

a. impact testing
b. tensile testing
c. hardness testing
d. the offset method
e. b and d above

A

e. b and d above

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7
Q

Which metal properties are directly related?

a. conductivity and strength
b. strength and ductility
c. strength and hardness
d. ductility and toughness
e. c and d above

A

e. c and d above

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8
Q 
The ability of a metal to absorb energy is called:
' a. strength
b. ductility
c. hardness
d. toughness
e. none of the above
A

d. toughness

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9
Q

The metal property affected by the surface condition of the sample is:

a. tensile strength
b. UTS
c. hardness
d. fatigue strength
e. all of the above

A

e. all of the above

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10
Q

Which alloying element is generally considered to have the most pronounced effect on the
properties and performance of carbon steel?
a. aluminum
b. carbon
c. manganese
d. chromium
e. none of the above

A

b. carbon

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11
Q

Which alloying element is commonly added to steel to improve its corrosion resistance?

a. carbon
b. aluminum
c. silicon
d. chromium
e. none of the above

A

d. chromium

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12
Q

Hydrogen in the molten weld metal can cause:

a. undercut
b. overlap
c. cracking
d. porosity
e. c and d above

A

e. c and d above

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13
Q

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

A

d. impact strength

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14
Q

A metal’s ductility can be expressed as:

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

A

d. a and b above

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15
Q

A tensile specimen having a cross sectional area of 0.25 square inches fails at a load of 15,250

pounds. What is its tensile strength? (Tensile Strength = LoadIArea)
a. 3813 psi
b. 61,000 psi
c. 6,lOOpsi
d. 58,500 psi
e. none of the above

A

b. 61,000 psi

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16
Q

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

A

a. yield strength

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17
Q 
What is the percent elongation of a specimen whose original gage length was 2 inches and
final gage length was 2.5 inches?
a. 30% 1
b. 25%
c. 50%
d. 40%
e. none of the above
A

b. 25%

18
Q

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

A

c. Rockwell

19
Q

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

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

A

e. b and c above

20
Q

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

a. Brinell test
b. fatigue test
c. tensile test
d. microhardness test
e. Charpy impact test

A

e. Charpy impact test

21
Q

Endurance limit is an expression used for what type of testing?

a. fatigue
b. hardness
c. soundness
d. tension
e. none of the above

A

a. fatigue

22
Q

The metal property that relates to a metal’s deforming without failing is called:

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

A

b. ductility

23
Q

Which test is not considered a ‘soundness’ test?

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

A

a. hardness

24
Q

The type of testing used to evaluate the type of rnicrostructure present in a metal is called:

a. tensile
b. hardness
c. toughness
d. metallographic
e. none of the above

A

d. metallographic

25
Q

Which of the following tests can be used to judge the soundness of a weld?

a. nick break
b. side bend
c. face bend
d. fillet break
e. all of the above

A

e. all of the above

26
Q 
Which of the following tests will generally be used to determine the behavior of a metal at a
specific temperature?
a. guided-bend test
b. root-bend test
c. Charpy impact test
d. transverse fillet weld shear test
e. all of the above
A

c. Charpy impact test

27
Q

With respect to the rolling direction of steel plate manufacture, which statement is true?

a. The strength is highest in the ‘Z’direction.
b. The strength is lowest in the ‘X’ direction.
c. The strength is highest in the ‘X’ direction.
d. The strength is highest in the ‘Y’ direction.
e. The strength is lowest in the ‘Y’ direction.

A

c. The strength is highest in the ‘X’ direction.

28
Q

The fillet weld break test is used to evaluate the:

a. quality of the fractured weld
b. ductility of the weld metal
c. impact strength of the weld
d. tensile strength of the base metal
e. none of the above

A

a. quality of the fractured weld

29
Q

The welding inspector is not concerned with the mechanical and chemical properties of metals.

a. true
b. false

A

b. false

30
Q 
For plain carbon steels, their approximate tensile strength can be estimated by multiplying
their BHN by:
a. 400
b. 300
c. 100
d. 200
e. 500
A

e. 500

31
Q

Notch toughness and impact strength are not synonomous.

a. true
b. false

A

b. false

32
Q 
Phosphorus and sulfur are added to carbon steel to improve:
a. ductility
b. toughness
c, weldability
d. impact strength
e. none of the above
A

e. none of the above

33
Q 
To improve the low temperature properties of carbon steels, the most likely alloy addition
would be:
a. manganese
b. carbon
c. nickel
d. chromium
e. none of the above
A

c. nickel

34
Q

Hydrogen, oxygen, and nitrogen can all cause embrittlement in carbon steels.

a. true
b. false

A

a. true

35
Q

Gage marks on a tensile specimen are:

a. scratches caused by improper handling
b. marks caused by using a gage to measure sample area
c. spaced a set distance apart
d. used for calculating percent elongation
e. c and d above

A

e. c and d above

36
Q

The ‘offset method’ is used for determining which property?

a. yield strength
b. tensilestrength
c. hardness
d. fatigue strength
e. impact strength

A

a. yield strength

37
Q

Surface preparation is not an important step in destructive testing.

a. true
b. false

A

b. false

38
Q

The Brine11 hardness test is always a destructive test.

a. true
b. false

A

b. false

39
Q

In Charpy testing, the test temperature is:

a. not important
b. very important
c. not considered
d. never reported
e. none of the above

A

b. very important

40
Q

In Charpy testing, the test data can be reported as:

a. foot pounds energy absorbed
b. lateral expansion
c. percent shear
d. all of the above
e. offset data

A

d. all of the above

41
Q

The objective of the guided bend test is to break the sample.

a. true
b. false

A

b. false

CWI CHP Practice tests (10 decks)

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