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HI Barber - independent service foundations study materials
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HI Barber - independent service foundations practice questions

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Question 1Hair fibre, growth and material behavior

What is the function of the dermal papilla in hair growth?

  1. It produces melanin for hair color
  2. It supplies blood and nutrients to the hair follicle, stimulating growth Correct answer.
  3. It protects the hair shaft from damage
  4. It produces sebum

Explanation

The dermal papilla is a small, cone-shaped structure at the base of the hair follicle that contains blood vessels and nerves. It supplies essential blood, oxygen, and nutrients to the growing hair cells (matrix) and plays a crucial role in stimulating and regulating hair growth.

Question 2Hair fibre, growth and material behavior

Which type of melanin produces brown and black hair colors?

  1. Pheomelanin
  2. Eumelanin Correct answer.
  3. Neuromelanin
  4. Cytomelanin

Explanation

Eumelanin is the type of melanin responsible for brown and black hair colors. It is the most abundant melanin type in human hair. Pheomelanin produces red and yellow tones. The combination and proportion of eumelanin and pheomelanin determine each individual's unique hair color.

Question 3Hair fibre, growth and material behavior

What is the outermost layer of the hair shaft called?

  1. Cortex
  2. Medulla
  3. Cuticle Correct answer.
  4. Matrix

Explanation

The cuticle is the outermost protective layer of the hair shaft, composed of overlapping transparent scales (like roof shingles). A healthy, intact cuticle gives hair its shine and protects the inner cortex. Chemical and heat damage can lift or break the cuticle scales, leading to dry, porous, and dull-looking hair.

Question 4Hair fibre, growth and material behavior

What is the technical term for the visible part of the hair above the scalp?

  1. Hair root
  2. Hair shaft Correct answer.
  3. Hair bulb
  4. Hair follicle

Explanation

The hair shaft is the visible portion of the hair that extends above the skin surface. It is composed of dead, keratinized cells arranged in three layers: cuticle, cortex, and medulla. The hair root is the portion below the skin surface within the follicle.

Question 5Hair fibre, growth and material behavior

What are disulfide bonds in the context of hair chemistry?

  1. Bonds between hair and skin
  2. Strong chemical bonds in the cortex that give hair its shape and strength Correct answer.
  3. Bonds between shampoo and hair
  4. Temporary bonds broken by water

Explanation

Disulfide bonds are strong chemical cross-links between sulfur atoms in the cortex layer of the hair. These bonds give hair its shape, strength, and elasticity. They can only be broken by chemical means (permanent waving solutions, relaxers), unlike hydrogen bonds which are temporary and broken by water.

Question 6Hair fibre, growth and material behavior

What is the primary function of the sebaceous gland?

  1. To produce sweat
  2. To produce sebum (natural oil) that lubricates hair and skin Correct answer.
  3. To produce melanin
  4. To regulate body temperature

Explanation

Sebaceous glands produce sebum, a natural oil that lubricates and moisturizes both the hair shaft and the skin. These glands are attached to hair follicles and their secretion helps maintain the acid mantle of the skin (pH 4.5-5.5), which acts as a natural barrier against bacteria.

Question 7Hair fibre, growth and material behavior

What is the term for the part of the hair below the skin surface, within the follicle?

  1. Hair shaft
  2. Hair root Correct answer.
  3. Hair cuticle
  4. Hair cortex

Explanation

The hair root is the portion of the hair located below the skin surface, enclosed within the hair follicle. It extends from the surface of the skin to the hair bulb at the base of the follicle. The root contains the living cells that produce hair growth.

Question 8Hair fibre, growth and material behavior

What is the dermis layer of the skin?

  1. The outermost layer providing a protective barrier
  2. The middle layer containing blood vessels, nerves, hair follicles, and glands Correct answer.
  3. The deepest layer composed primarily of fat cells
  4. The surface layer of dead cells

Explanation

The dermis is the middle layer of the skin, located between the epidermis (outer) and the hypodermis/subcutaneous tissue (inner). It contains blood vessels, nerve endings, hair follicles, sweat glands, sebaceous glands, and connective tissue. The dermis provides structural support and nourishment to the epidermis.

Question 9Hair fibre, growth and material behavior

What is hair elasticity and why is it important for barbering?

  1. The ability of hair to stretch and return to its original shape without breaking Correct answer.
  2. The color of the hair
  3. The amount of oil on the hair
  4. The speed at which hair grows

Explanation

Hair elasticity is the ability of hair to stretch and return to its original shape without breaking. Healthy hair can stretch up to 50% of its length when wet. Elasticity indicates the strength of the cortex and is important for barbering because it affects how hair responds to cutting, styling, and chemical services. Low elasticity indicates damaged or weakened hair.

Question 10Hair fibre, growth and material behavior

What is the definition of porosity as it relates to hair?

  1. The ability of hair to stretch
  2. The hair's ability to absorb and retain moisture Correct answer.
  3. The diameter of the hair strand
  4. The number of hairs per square inch

Explanation

Hair porosity refers to the hair's ability to absorb and retain moisture. It is determined by the condition of the cuticle layer. Low-porosity hair has a tightly bound cuticle that resists absorption. High-porosity hair has a raised or damaged cuticle that absorbs moisture quickly but also loses it easily. This affects product selection and chemical service processing times.

Question 11Hair fibre, growth and material behavior

What is the stratum corneum?

  1. The deepest layer of the epidermis where cell division occurs
  2. The outermost layer of the epidermis composed of dead, keratinized cells Correct answer.
  3. A layer of the dermis containing blood vessels
  4. The middle layer of the hair shaft

Explanation

The stratum corneum is the outermost layer of the epidermis, composed of dead, keratinized (hardened) cells that are continually shed and replaced. It forms the first line of defense against the environment, acting as a waterproof barrier. It is the layer most directly affected by barbering services involving the skin.

Question 12Hair fibre, growth and material behavior

What is the function of hydrogen bonds in hair?

  1. They permanently shape the hair
  2. They are temporary physical bonds that are broken by water and heat and reformed during styling Correct answer.
  3. They determine hair color
  4. They attach hair to the follicle

Explanation

Hydrogen bonds are weak, temporary physical bonds in the hair that account for about one-third of the hair's strength. They are easily broken by water (wetting the hair) and heat (blow-drying, flat ironing) and reform as the hair dries or cools in a new position. This is why wet sets and blow-outs can temporarily change hair shape.

Question 13Hair fibre, growth and material behavior

What is alopecia areata?

  1. Complete baldness of the entire body
  2. Patchy hair loss in round or oval areas, often occurring suddenly Correct answer.
  3. Gradual thinning of hair over time due to aging
  4. Hair loss caused by tight hairstyles

Explanation

Alopecia areata is an autoimmune condition that causes sudden, patchy hair loss in round or oval areas on the scalp or other parts of the body. The immune system mistakenly attacks hair follicles. It can occur at any age and may be temporary or recurring. Barbers should recognize this condition and refer clients to a dermatologist.

Question 14Hair fibre, growth and material behavior

What is the difference between vellus hair and terminal hair?

  1. Vellus hair is found only on the head; terminal hair is found only on the body
  2. Vellus hair is soft, fine, and unpigmented; terminal hair is coarser, longer, and pigmented Correct answer.
  3. There is no difference between the two
  4. Terminal hair grows faster than vellus hair

Explanation

Vellus hair is the soft, fine, light-colored (often unpigmented) body hair that covers most of the body surface. Terminal hair is the coarser, longer, darker, pigmented hair found on the scalp, face (beard), and other areas after puberty. Hormonal changes can cause vellus hair to transform into terminal hair.

Question 15Hair fibre, growth and material behavior

What is the definition of 'hair density'?

  1. The diameter of individual hair strands
  2. The number of individual hair strands per square inch on the scalp Correct answer.
  3. The length of hair on the scalp
  4. The weight of the hair

Explanation

Hair density refers to the number of individual hair strands per square inch on the scalp. The average scalp has about 100,000 hairs, but density varies. High density means more hairs per square inch, while low density means fewer. Density is different from texture, which refers to the diameter of individual strands.

Question 16Haircut planning, geometry, sectioning and cross-checking

What haircutting technique creates a smooth transition from short to long hair?

  1. Blunt cutting
  2. Tapering or fading Correct answer.
  3. Texturizing
  4. Razor cutting

Explanation

Tapering or fading is the technique used to create a smooth, gradual transition from shorter hair at the neckline and sides to longer hair on top. Different types include low fade, mid fade, high fade, and taper fade. This is one of the most fundamental and commonly requested barbering techniques.

Question 17Haircut planning, geometry, sectioning and cross-checking

What does the term 'over-direction' mean in haircutting?

  1. Cutting too much hair off
  2. Combing or pulling the hair past its natural fall position before cutting Correct answer.
  3. Using too much product on the hair
  4. Cutting in the wrong direction

Explanation

Over-direction in haircutting means combing or pulling the hair beyond its natural fall position before cutting. This technique is used to create specific effects, such as building weight or length in certain areas of the haircut. It is a key principle for creating graduated and layered shapes.

Question 18Haircut planning, geometry, sectioning and cross-checking

What is a guideline (guide) in haircutting?

  1. A written set of rules from the board
  2. A section of hair cut to a specific length that serves as the reference for the rest of the cut Correct answer.
  3. A type of haircutting tool
  4. The client's instructions

Explanation

A guideline (also called a guide or traveling guide) is a section of hair that is cut to a specific length and serves as a reference point for cutting the remaining hair. It establishes the length and shape of the haircut. Subsequent sections are compared to the guide to maintain consistency throughout the cut.

Question 19Haircut planning, geometry, sectioning and cross-checking

What is the difference between wet cutting and dry cutting hair?

  1. Wet cutting is for curly hair only; dry cutting is for straight hair only
  2. Wet cutting provides precision on controlled hair; dry cutting reveals the natural texture and final result Correct answer.
  3. There is no difference
  4. Dry cutting is always preferred over wet cutting

Explanation

Wet cutting provides precision because water weighs down the hair and makes sections easier to control, resulting in clean, accurate lines. Dry cutting reveals the hair's natural texture, movement, and fall, allowing the barber to see exactly how the finished cut will look. Many barbers use a combination of both techniques.

Question 20Haircut planning, geometry, sectioning and cross-checking

What head shape consideration is important when designing a haircut?

  1. Head shape does not affect the haircut design
  2. The haircut should complement the client's head shape by adding or reducing volume in specific areas Correct answer.
  3. All clients should receive the same basic shape regardless of head shape
  4. Head shape only matters for women's haircuts

Explanation

A skilled barber considers the client's head shape when designing a haircut. The goal is to create the illusion of an oval or balanced head shape by adding volume where the head is flat and reducing volume where it protrudes. This is one of the key factors in creating a flattering, customized haircut.

Question 21Haircut planning, geometry, sectioning and cross-checking

What is the purpose of thinning shears in barbering?

  1. To cut hair as short as possible
  2. To reduce bulk and thickness while blending layers without shortening the overall length Correct answer.
  3. To create blunt, uniform lines
  4. To cut beard hair only

Explanation

Thinning shears (also called blending or texturizing shears) have one or both blades with teeth/notches. They are used to reduce bulk and thickness, blend layers, and add texture to a haircut without significantly shortening the overall length. They remove some hairs while leaving others, creating a softer, blended result.

Question 22Haircut planning, geometry, sectioning and cross-checking

What is the proper way to hold a comb during a clipper-over-comb technique?

  1. Hold the comb flat against the head
  2. Hold the comb at an angle, lifting hair away from the head while moving the clipper over the comb's teeth Correct answer.
  3. Hold the comb behind the clippers
  4. Hold the comb in the non-dominant hand without any specific positioning

Explanation

During clipper-over-comb technique, the comb is held at an angle to lift the hair away from the head. The angle of the comb determines the length of hair that will be cut by the clippers as they pass over the teeth. A steeper angle removes more hair, while a gentler angle leaves more length. The barber adjusts the angle progressively for smooth blending.

Question 23Haircut planning, geometry, sectioning and cross-checking

What technique involves gradually blending hair from very short to longer?

  1. Layering
  2. Tapering or fading Correct answer.
  3. Blunt cutting
  4. Texturizing

Explanation

Tapering or fading is the technique of gradually blending hair from very short (or skin) at the hairline to progressively longer lengths higher on the head. Types include low, mid, and high fades.

Question 24Haircut planning, geometry, sectioning and cross-checking

What is the guideline section of hair used as a length reference during a haircut?

  1. The parting
  2. The traveling guide or stationary guide Correct answer.
  3. The crown point
  4. The outline

Explanation

A guide (traveling or stationary) is the first section of hair cut to establish the desired length. All subsequent sections are compared to this guide to ensure consistency. A stationary guide stays in one place; a traveling guide moves with each new section.

Question 25Haircut planning, geometry, sectioning and cross-checking

What is the term for the technique of cutting into the ends of the hair with shear tips to create texture?

  1. Blunt cutting
  2. Point cutting Correct answer.
  3. Club cutting
  4. Razor rotation

Explanation

Point cutting involves cutting into the ends of the hair with the tips of the shears held at an angle. This technique creates texture, movement, and softens blunt or heavy lines at the ends.

Question 26Haircut planning, geometry, sectioning and cross-checking

What is the proper technique for cross-checking a haircut?

  1. Checking the receipt
  2. Combing the hair in the opposite direction from how it was cut to verify consistency and accuracy Correct answer.
  3. Asking the client to check in a mirror
  4. Comparing the cut to a photo

Explanation

Cross-checking involves combing the hair in the opposite direction from how it was originally sectioned and cut. For example, if sections were cut vertically, cross-check by combing horizontally. This verifies consistent length throughout.

Question 27Haircut planning, geometry, sectioning and cross-checking

What is the proper technique for performing a skin fade at the temples?

  1. Use scissors only at the temples
  2. Use the corner of the trimmer to create a clean transition from skin to the shortest clipper guard, blending upward with progressively longer guards Correct answer.
  3. Shave the temple area completely bald
  4. Use a razor to cut the temple hair

Explanation

A skin fade at the temples requires using the corner of the trimmer or zero-gap clipper to create a smooth transition from bare skin to the shortest clipper guard length. The barber then progressively uses longer guards moving upward, blending each transition zone for a seamless gradient.

Question 28Haircut planning, geometry, sectioning and cross-checking

What is the proper technique for using a lever on adjustable clippers during a fade?

  1. Keep the lever in one position throughout
  2. Gradually open the lever as you move upward from the hairline to increase cutting length, creating a seamless blend between guard sizes Correct answer.
  3. Close the lever for longer cuts
  4. The lever only affects clipper speed

Explanation

The clipper lever controls the blade gap and cutting length. During a fade, the barber starts with the lever closed (shortest cut) at the hairline and gradually opens it moving upward to increase the cutting length. This creates seamless micro-transitions between guard sizes for a smooth fade.

Question 29Haircut planning, geometry, sectioning and cross-checking

What is the significance of the apex of the head in haircutting?

  1. It has no significance
  2. The apex is the highest point of the head and serves as a key reference point for establishing overall length, proportions, and the starting point for many cutting techniques Correct answer.
  3. It only matters for women's haircuts
  4. The apex is at the back of the head

Explanation

The apex is the highest point of the head when viewed in profile. It serves as a critical reference point for establishing overall proportions, determining where the top section begins, and as a starting point for many layering techniques. Hair at the apex often serves as the initial guide for cuts.

Question 30Facial-hair design, shaving preparation and service boundaries

What causes razor bumps (pseudofolliculitis barbae)?

  1. An allergic reaction to metal razors
  2. Ingrown hairs that curl back into the skin after shaving, causing inflammation Correct answer.
  3. A bacterial infection from dull razors
  4. Excessive use of aftershave

Explanation

Razor bumps (pseudofolliculitis barbae) are caused by shaved hairs that curl back and grow into the surrounding skin, creating an inflammatory response. This condition is particularly common in individuals with curly or coarse hair. Prevention includes shaving with the grain, using sharp blades, and proper skin preparation.

Question 31Facial-hair design, shaving preparation and service boundaries

What is pseudofolliculitis barbae?

  1. A fungal scalp infection
  2. Razor bumps caused by ingrown hairs, commonly occurring in people with curly or coarse hair Correct answer.
  3. A type of dandruff
  4. A chemical burn reaction

Explanation

Pseudofolliculitis barbae (razor bumps) occurs when shaved hairs curl back into the skin, causing inflammation and bumps. It is most common in individuals with curly or coarse hair. Prevention includes shaving with the grain and using proper techniques.

Question 32Facial-hair design, shaving preparation and service boundaries

What is the purpose of a pre-shave oil in a barbershop shave service?

  1. To add color to the beard
  2. To create a protective layer between the skin and razor, reducing friction, irritation, and the risk of nicks while softening the beard hair Correct answer.
  3. To clean the skin before shaving
  4. To speed up the shaving process

Explanation

Pre-shave oil is applied before lather to create a protective, lubricating layer between the razor and skin. It reduces friction, minimizes irritation, decreases the risk of nicks and razor burn, and helps soften the beard hair. It is particularly beneficial for clients with sensitive skin.

Question 33Cleansing, conditioning, drying and temporary styling

What is the proper way to test a hot towel temperature before applying it to a client?

  1. Apply it directly and ask the client if it's okay
  2. Test on the inside of your wrist - it should be warm but not scalding Correct answer.
  3. Use only cold towels to avoid burns
  4. Estimate the temperature by sight

Explanation

Before applying a hot towel to a client's face, the barber should test the temperature on the inside of their wrist, which is highly sensitive to heat. The towel should feel warm and comfortable but not hot enough to burn. This prevents scalding injuries and ensures a pleasant experience for the client.

Question 34Cleansing, conditioning, drying and temporary styling

What is the proper blow-drying technique for creating a smooth, straight style?

  1. Direct the nozzle against the hair growth direction
  2. Direct the airflow down the hair shaft from roots to ends, following with a brush to smooth the cuticle Correct answer.
  3. Hold the dryer in one spot until dry
  4. Use only cold air

Explanation

For a smooth, straight style, direct the concentrator nozzle down the hair shaft from roots to ends, which smooths the cuticle scales. Follow each section with a paddle brush or round brush. Keep the dryer moving to distribute heat evenly.

Question 35Cleansing, conditioning, drying and temporary styling

In classic styling disciplines, what is 'vandondulation' (water waving / finger waves), and how are the waves formed?

  1. Setting wet hair on smooth rollers and clips without shaping alternating ridges by hand.
  2. Sculpting wet hair into alternating S-shaped curves and ridges (kamme) using a comb and fingers, without a heated waving tool. Correct answer.
  3. Creating waves on dry hair with a thermal iron and then brushing them into an S pattern.
  4. Winding damp hair on permanent-wave rods before applying reducing lotion.

Explanation

Vandondulation (finger waving) uses the fingers and comb to shape damp hair into alternating curved ridges and troughs (kamme og dale). Product may support control and hold, but the defining technique is the wet manual shaping rather than a thermal iron or chemical waving lotion.

Question 36Cleansing, conditioning, drying and temporary styling

When styling a classic men's 'bombage' or structured pomp, what tool and technique are used to build maximum smooth volume in the front forelock?

  1. A brush or styling comb that lifts and directs the roots while controlled airflow shapes the front, followed by cooling before release. Correct answer.
  2. A narrow nozzle aimed against the finished surface from tip to root after the hair is fully dry.
  3. A flat brush that holds the forelock tightly against the forehead throughout drying.
  4. A curling iron used as the only shaping tool before the blow-dry is assessed.

Explanation

Bombage requires lifting and directing the front hair at the root with a brush or comb while controlled airflow shapes and dries the section. Cooling the dry section before release helps it retain the rounded, voluminous form.

Question 37Cleansing, conditioning, drying and temporary styling

Why is the direction of airflow from the blow-dryer nozzle (føntørrerens mundstykke) kept pointing from root to tip along the hair shaft?

  1. To lift the overlapping cuticle edges and create more texture at the surface.
  2. To direct the overlapping cuticle edges smoothly toward the ends, improving alignment, shine, and frizz control. Correct answer.
  3. To make the roots dry more slowly than the ends so the style remains flexible.
  4. To replace brush tension as the main method of shaping the hair.

Explanation

Cuticle cells overlap toward the ends. Directing controlled airflow in that same direction helps keep the surface aligned instead of roughening it, while brush control and suitable heat shape and dry the section.

Question 38Cleansing, conditioning, drying and temporary styling

What temporary chemical bonds inside the hair shaft are reformed when hair is dried from wet to dry with a blow-dryer and round brush?

  1. Covalent disulfide bonds (svovlbroer)
  2. Hydrogen bonds (brintbindinger) Correct answer.
  3. Salt bonds that require an alkaline chemical service to change
  4. Peptide bonds forming the keratin backbone

Explanation

Hydrogen bonds are weak, temporary cross-links easily broken by water and rebuilt as the hair dries. Blow-drying molds these bonds into a new shape (curl, wave, or smooth), which holds until the hair re-absorbs atmospheric moisture or is washed.

Question 39Cleansing, conditioning, drying and temporary styling

In structured long-hair dressing (langthårsopsætning), what is the function of backcombing / teasing (toupering)?

  1. To smooth every strand flat so pins have less texture to grip.
  2. To compact hair toward the scalp, creating an internal cushion and foundation (fundament) to anchor bobby pins and support structural volume. Correct answer.
  3. To replace the structural support of pins in every long-hair design.
  4. To create surface shine without changing volume or internal support.

Explanation

Toupering (backcombing) slides shorter interior strands down toward the scalp, forming a supportive, dense fibrous mesh. This cushion creates lasting structural volume and provides a secure base (fundament) into which bobby pins (hårnåle) can grip without slipping.

Question 40Cleansing, conditioning, drying and temporary styling

Why is a secure internal foundation important in a structured long-hair design (langthårsfrisering)?

  1. It lets the candidate use visible fasteners as the main decorative feature regardless of the task.
  2. It anchors the design's weight and movement so the finished shape remains balanced, durable, and cleanly presented. Correct answer.
  3. It removes the need to consider the model's head shape or hair quality.
  4. It guarantees stability even when sections are pinned against their intended direction of movement.

Explanation

A long-hair design needs an internal structure that supports its mass and planned movement without distracting visible gaps or loose work. Pins and backcombing should be placed to resist the direction of movement and support the chosen shape while remaining tidy and suitable for the model.

Question 41Cleansing, conditioning, drying and temporary styling

In men's styling, what is the primary aesthetic difference between a matte clay/paste and an oil-based classic pomade?

  1. Matte clay provides high shine and wet look, while pomade provides a dry powdery finish.
  2. Matte clay absorbs light to deliver a dry, natural, textured finish with pliable hold, whereas oil-based pomade delivers high slick shine, crisp comb lines, and a wet look. Correct answer.
  3. Matte clay gives flexible separation, while classic pomade can give controlled comb definition; both always have the same shine.
  4. They differ mainly in wash-out method, while both are intended to produce the same glossy, combed finish.

Explanation

A matte clay or paste is selected for low shine, separation, and a drier textured appearance. A classic oil-based pomade is selected for gloss, smooth control, and visible comb definition; the exact hold and ingredients still vary by product.

Question 42Cleansing, conditioning, drying and temporary styling

How should a candidate choose thermal-tool temperature for fine, chemically lightened hair?

  1. Use the maximum setting so the tool contacts each section for less time.
  2. Assess condition, use the lowest effective temperature within the tool and product instructions, protect the hair, and test a section before proceeding. Correct answer.
  3. Use one fixed temperature for every head because chemical history does not affect heat tolerance.
  4. Choose temperature from the desired curl diameter rather than from hair condition.

Explanation

Lightening can leave hair more porous and vulnerable to heat. There is no single safe temperature for every tool and head of hair, so diagnosis, manufacturer limits, heat protection, short controlled contact, and a test section are more defensible than an unsupported universal threshold.

Question 43Cleansing, conditioning, drying and temporary styling

Why should the focal point and mass of a long-hair design not be placed by one fixed measurement for every model?

  1. Because assessors grade only the number of pins, not the finished shape.
  2. Because placement must create form and harmony suited to the model's face, head shape, hair quality, and the selected design. Correct answer.
  3. Because every model must receive an asymmetrical design with mass on the same side.
  4. Because the highest possible placement is always the most flattering and durable.

Explanation

The SUS styling rubrics repeatedly assess whether form, movement, and harmony suit the model's face, client type, and hair quality. Those variables require design judgment; they cannot be reduced to one universal facial landmark or fixed centimetre measurement.

Question 44Cleansing, conditioning, drying and temporary styling

What is the primary difference in winding technique between a spiral wrap (spiralvikling) and a croquignole wrap (klassisk vikling)?

  1. A spiral wrap winds hair along the length of a vertically held rod from root to tip or tip to root without overlapping, whereas croquignole winds hair from ends to scalp overlapping in layers onto a horizontally held rod. Correct answer.
  2. A spiral wrap overlaps each turn from ends to scalp, while croquignole places the strand along the rod without overlap.
  3. Both wraps wind from ends to scalp with identical overlap; only the parting shape differs.
  4. Spiral describes rod size, while croquignole describes lotion strength.

Explanation

Croquignole winding rolls hair from the ends inward toward the scalp with each turn overlapping the previous layer on a horizontal rod, creating tighter ends and looser roots. A spiral wrap winds the hair along the vertical length of the rod like a corkscrew, producing uniform curl diameter from root to tip.

Question 45Cleansing, conditioning, drying and temporary styling

Which aftercare advice is most defensible after a permanent wave service?

  1. Promise that every product requires exactly 48 hours without washing because neutralization does not reform bonds in the salon.
  2. Follow the perm manufacturer's aftercare interval, handle the hair gently, and use suitable cleansing and conditioning products without inventing a universal waiting period. Correct answer.
  3. Recommend immediate repeated shampooing to remove the newly formed curl pattern.
  4. Advise that aftercare cannot affect condition or curl retention once the rods are removed.

Explanation

The neutralizer is intended to reform disulfide bonds during the service. Product manufacturers may give different shampooing and aftercare intervals, so the professional should communicate the actual instructions and emphasize gentle care rather than claim that every perm has an identical 48-hour chemical process.

Question 46Cleansing, conditioning, drying and temporary styling

When styling with a round brush (formtørring med rundbørste), what is the function of the 'cool shot' button (koldluftknap) on the blow-dryer?

  1. To add more moisture so the section can be reshaped without rewetting.
  2. To cool a fully dried, shaped section before release so it retains the molded curl or bend more effectively. Correct answer.
  3. To cool the tool motor while leaving the heated section unchanged.
  4. To replace complete drying by making a damp section feel cool.

Explanation

After the section has been shaped and dried with controlled heat and brush tension, cool air lowers its temperature while it remains supported. Releasing it only after cooling helps preserve the temporary set; cool air does not replace complete drying.

Question 47Cleansing, conditioning, drying and temporary styling

In creative long-hair braiding and chignon work, why is applying a light texturizing powder or dry texture spray beneficial prior to pinning?

  1. It makes each section smoother and more slippery so pins can be repositioned repeatedly.
  2. It adds grip (friktion) and matte traction to slippery, silky hair, preventing braids and pins from unraveling. Correct answer.
  3. It replaces sectioning and a secure foundation when the hair is fine.
  4. It increases grip, but only if so much is applied that the finish becomes visibly powdery.

Explanation

A suitable light texturizing product can increase surface grip in silky hair, making sections and pins easier to control. It supports clean construction but does not replace sectioning, a sound internal foundation, or the product directions.

Question 48Colour, lightening and chemical-texture principles

What is the purpose of a strand test before a chemical service?

  1. To test the client's pain tolerance
  2. To evaluate how the hair responds to the chemical, determining timing and expected results Correct answer.
  3. To measure hair length
  4. To test the smell of the product

Explanation

A strand test is performed on a small section of hair to evaluate how it responds to a chemical product. It helps determine correct processing time, expected results, and whether the hair can withstand the treatment.

Question 49Colour, lightening and chemical-texture principles

What chemical process permanently alters the disulfide bonds to straighten curly hair?

  1. Conditioning treatment
  2. Chemical relaxing Correct answer.
  3. Temporary rinse
  4. Hot oil treatment

Explanation

Chemical relaxing permanently straightens hair by breaking disulfide bonds with a strong alkaline solution (sodium hydroxide or calcium hydroxide), then reforming them in a straighter configuration. This is a permanent change that grows out with new growth.

Question 50Colour, lightening and chemical-texture principles

On a standard hairdresser color wheel (farvestjernen), which primary color is complementary to orange and is therefore used conceptually to neutralize an unwanted orange cast?

  1. Yellow (gul)
  2. Red (rød)
  3. Blue (blå) Correct answer.
  4. Green (grøn)

Explanation

Blue lies opposite orange on the color wheel, so blue and blue-based tones are used to counter an unwanted orange cast. The exact shade code and amount must still be chosen from the product manufacturer's system after diagnosing the hair.