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Chapter 20 > test questions > Flashcards

test questions Flashcards

1
Q

A pH of _____ is neutral for hair.

A

5

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2
Q

When performing a chemical hair relaxing service, it is appropriate to:

A

conduct periodic strand tests during the service

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3
Q

The most common type of perm rod is the:

A

concave rod

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4
Q

The strength of the permanent waving solution is determined primarily by the concentration of:

A

thio

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5
Q

Which type of wave is activated by an outside heat source, such as a conventional hood-type hair dryer?

A

endothermic

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6
Q

What is the main active ingredient in true acid and acid-balanced waving lotions?

A

GMTG

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7
Q

In half off-base placement, the hair is wrapped at an angle of:

A

90 degrees or perpendicular to the base section

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8
Q

The neutralizer used with thio relaxers is usually:

A

hydrogen peroxide

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9
Q

The basic permanent wrap is also known as a:

A

straight set wrap

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10
Q

Guanidine hydroxide relaxers are advertised and sold as _____ relaxers.

A

no-lye

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11
Q

In permanent waving, the size of the curl is determined by the:

A

size of the rod

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12
Q

The base direction can be:

A

horizontal, vertical, or diagonal

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13
Q

The double-rod wrap technique is especially effective on _____ hair.

A

long

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14
Q

Polypeptide chains are long chains of amino acids joined together by _____ bonds.

A

peptide

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15
Q

It is recommended that you apply base cream when using:

A

both base relaxers and no-base relaxers

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16
Q

Which type of relaxers are commonly called lye relaxers?

A

sodium hydroxide

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17
Q

The first function of thio neutralization is the:

A

deactivation of any remaining waving lotion

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18
Q

What is the primary benefit of ammonia-free waves?

A

They do not have a strong odor.

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19
Q

Which straightening method combines use of a thio relaxer with flat ironing?

A

Japanese thermal straightening

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20
Q

A _____ is a conditioner with an acidic pH that conditions hair and restores the natural pH prior to shampooing.

A

normalizing lotion

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21
Q

Hydrogen bonds can be broken by:

A

water or heat

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22
Q

What is the active ingredient in alkaline permanents?

A

ammonium thioglycolate

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23
Q

A preliminary test curl will NOT answer which of these questions?

A

Is the client allergic to any of the products that will be used?

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24
Q

Which type of perm should you recommend if the client has very damaged hair?

A

true acid wave

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25
Q

A _____ bond is NOT a type of side bond.

A

peptide

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26
Q

Which of these is NOT a component of all exothermic waves?

A

hydroxide relaxer

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27
Q

Generally, keratin straightening treatments eliminate up to what percent of frizz and curl?

A

95 percent

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28
Q

Overprocessed hair:

A

occurs when too many disulfide bonds are broken

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29
Q

The side bonds of the _____ must be broken in order to change the natural wave pattern of the hair

A

cortex

30
Q

Salt bonds are broken by:

A

changes in the pH

31
Q

When performing a perm, you should always:

A

smell the hair after the recommended time has elapsed

32
Q

What two important functions are performed by the neutralization process?

A

deactivating waving solution and rebuilding disulfide bonds

33
Q

What is used to protect the skin and scalp during hair relaxing?

A

base cream

34
Q

The reduction reaction in permanent waving is due to the:

A

addition of hydrogen

35
Q

With the _____, base sections are offset from each other row by row.

A

bricklay permanent wrap

36
Q

When the silicone polymers and formalin in keratin-based straightening treatments are heated to high temperatures, they release:

A

formaldehyde gas

37
Q

Which wrapping pattern uses pie-shaped base sections?

A

curvature permanent wrap

38
Q

The strongest of the three side bonds are:

A

disulfide bonds

39
Q

Peptide bonds are also known as:

A

end bonds

40
Q

Thio relaxers use the same ATG that is used in permanent waving, but at a:

A

higher concentration and a higher pH

41
Q

Underprocessed hair is usually:

A

straighter at the scalp and curlier at the ends

42
Q

Hydroxide relaxers remove one atom of sulfur from a disulfide bond, converting it into a _____ bond.

A

lanthionine

43
Q

What kind of waves are sulfites used in?

A

low-pH

44
Q

A properly processed permanent wave should break and rebuild approximately _____ percent of the hair’s disulfide bonds.

A

50

45
Q

The natural pH of hair is between:

A

4.5 and 5.5

46
Q

Cold wave is another term for a(n) _____ wave.

A

alkaline

47
Q

For _____ placement, the hair is wrapped at a 45-degree angle beyond perpendicular to its base section, and the rod is positioned on its base.

A

on-base

48
Q

Thio neutralization rebuilds disulfide bonds by:

A

removing hydrogen

49
Q

When performing a test to determine whether metallic salts are present, the hair will _____ in the solution if metallic salts are present.

A

lighten rapidly

50
Q

Which end paper technique uses one end paper folded in half over the hair ends like an envelope?

A

bookend wrap

51
Q

Disulfide bonds account for about _____ of the hair’s overall strength.

A

one-third

52
Q

An acid-balanced wave has a pH of:

A

7.0

53
Q

The sulfites used as low-pH hair relaxers are compatible with:

A

thio relaxers

54
Q

When performing a permanent wave, you should:

A

immediately replace towels that have become wet with solution

55
Q

How long is a typical soft bender rod?

A

12 inches

56
Q

Compounds consisting of carbon, oxygen, hydrogen, nitrogen, and sulfur are:

A

amino acids

57
Q

Which type of metal is NOT commonly used to form ionic compounds in metal hydroxide relaxers?

A

magnesium (Mg)

58
Q

A _____ perm wrap is wrapped perpendicular to the length of the rod, in overlapping concentric layers.

A

croquignole

59
Q

Base placement is determined by the:

A

angle at which the hair is wrapped

60
Q

Hydroxide relaxers are:

A

very strong alkalis

61
Q

Which method of wrapping provides the most control over the hair ends?

A

double flat wrap

62
Q

The application for a virgin relaxer starts _____ away from the scalp.

A

1/4-inch to 1/2-inch

63
Q

True acid waves have a pH between:

A

4.5 and 7.0

64
Q

Chemical texture procedures involve changing the structure of the hair:

A

both physically and chemically

65
Q

A super-strength relaxer is recommended if the client has _____ hair.

A

extremely curly

66
Q

The _____ uses zigzag partings to divide base areas.

A

weave technique

67
Q

Which type of hair requires a highly alkaline chemical solution?

A

coarse, resistant hair

68
Q

The measurement of the thickness or thinness of a liquid that affects how the fluid flows is:

A

viscosity

69
Q

A _____ is a thio-based chemical service that reformats curly and wavy hair into looser and larger curls and waves.

A

soft curl permanent

70
Q

The strength of any permanent wave is based on the:

A

concentration of its reducing agent

Chapter 20 (1 decks)

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