Free National Nail Technology Theory Examination Practice Questions

Sample Practice Questions

Try these 10 sample questions from the National Nail Technology Theory Examination practice bank. Each includes the answer and explanation. Continue with the interactive practice above to review the full question set.

1. 1While trimming a client's cuticles, a nail technician nicks the client's finger and the client bleeds onto the work surface. OSHA identifies contact with infected blood in a nail salon as the transmission route for which group of pathogens?

   1. A. Hepatitis B, hepatitis C, and human immunodeficiency virus
   2. B. Trichophyton, Microsporum, and Epidermophyton
   3. C. Pseudomonas aeruginosa, Staphylococcus aureus, and Mycobacterium fortuitum
   4. D. Hepatitis A, norovirus, and rotavirus

   Answer: A

   Explanation: OSHA's nail salon guidance names the bloodborne pathogens a nail technician may acquire from blood: workers can be exposed "such as hepatitis B, hepatitis C, and human immunodeficiency virus (HIV), if they come into contact with infected blood from a co-worker or client." The other three groups are organisms nail technicians genuinely encounter, but they are not transmitted by the blood route described here: the dermatophyte genera cause ringworm of skin and nails, the bacteria listed cause skin and nail infections spread by contaminated implements and water, and the enteric viruses spread by the fecal-oral route.

   Reference: Health Hazards in Nail Salons - Biological Hazards | Occupational Safety and Health Administration — Biological Hazards, opening paragraph on bloodborne pathogen exposure

2. 2A client asks what her fingernails are actually made of. Which protein makes up the bulk of the natural nail plate?

   1. A. Keratin
   2. B. Collagen
   3. C. Elastin
   4. D. Melanin

   Answer: A

   Explanation: The outline's named reference states that the natural nail "is composed mainly of keratin, the fiber-shaped protein found in skin and hair," adding that the keratin in natural nails is more durable than the keratin in hair or skin. The other three substances are real and are all present in or produced by the skin, but each has a different role: collagen is the protein that holds the dermis together, elastin is the protein that lets skin spring back when stretched, and melanin is the pigment produced by melanocytes.

   Reference: Ref Milady Nail Structures Ch 05 P 107 — Milady Standard Nail Technology, 8th Edition, Chapter 05 'Nail Structure and Growth', p. 107; named in the NIC CIB reference list as Milady Standard Nail Technology 8th Edition + Foundations, ISBN 9780357446867

3. 3A nail polish lists a phthalate among its ingredients. According to FDA, what purpose does a phthalate serve in nail polish?

   1. A. It acts as a plasticizer, reducing cracking by making the nails less brittle
   2. B. It acts as a solvent, keeping the film fluid until it is applied
   3. C. It acts as a resin, forming a tough coating on the nail surface
   4. D. It acts as a hardener, bonding with the keratin in the nail

   Answer: A

   Explanation: FDA explains the function and the typical level: "In nail polishes, they are used primarily at concentrations of less than 10% as plasticizers, to reduce cracking by making the nails less brittle." The three remaining roles are real and are carried out by other ingredients FDA describes on the same page: toluene is used as a solvent in nail products, toluene sulfonamide/formaldehyde resin forms a tough, resilient coating on the nail, and formaldehyde in nail hardeners bonds with the keratin that occurs naturally in the nails.

   Reference: Nail Care Products | FDA — Some Common Nail Product Ingredients, 'Phthalates in Nail Polishes and Other Nail Products', 'Toluene', 'Formaldehyde in Nail Hardeners and Nail Polishes'

4. 4Before beginning any nail service, a technician carries out a short assessment of the client. Which step belongs in that assessment?

   1. A. Examining the client's hands and nails
   2. B. Recording the client's list of current medications
   3. C. Measuring the client's skin temperature at the fingertips
   4. D. Asking the client to sign a waiver of liability for any reaction

   Answer: A

   Explanation: The outline's named reference places this step in the preparation for a nail service: before applying product the technician is to "Examine hands and nails" and "Prepare natural nail plate," with the accompanying note that the service is discontinued and the client referred to a medical professional if contraindications are suspected. EPA supports the same practice by directing salons to "Perform services only on healthy nails and intact skin." The other three steps describe real activities in other settings, but collecting a medication history and measuring a physical sign belong to clinical assessment rather than to a nail service, and a signature does not establish whether the nails and skin can safely be worked on.

   Reference: Pivot Point Fundamentals Nails Sample Booklet — Pivot Point Fundamentals: Nails, 106N.7 Performance Guide, 'PREPARATION'

5. 5A nail technician is fitting a new bit into an electric file. What is the industry standard size for the shank of a bit made for the nail industry?

   1. A. 3/32 inch
   2. B. 1/8 inch
   3. C. 1/16 inch
   4. D. 1/4 inch

   Answer: A

   Explanation: The outline's named reference gives the figure with its metric equivalent: "Industry standard size for the shank is 3/32" (2.38 mm)." The shank is the shaft that is inserted into the end of the handpiece and held by the chuck, so a bit of any other shank size will not seat correctly. The three other measurements are plausible small shaft sizes but none of them is the standard the reference states for nail industry bits.

   Reference: Pivot Point Fundamentals Nails Sample Booklet — Pivot Point Fundamentals: Nails, 102N.14 Electricity in Nails, 'Electric File Bits'

6. 6A client has a hangnail at the side of one finger and asks the technician to deal with it. How does CDC direct that a hangnail be handled?

   1. A. Clip it with a clean, sanitized nail trimmer
   2. B. Pull it away from the nail fold in the direction it is growing
   3. C. Push it back under the nail fold with a wooden stick
   4. D. Soften it in warm water and leave it in place to separate on its own

   Answer: A

   Explanation: CDC's nail hygiene guidance is specific about both the action and the tool: "Never rip or bite a hangnail. Instead, clip it with a clean, sanitized nail trimmer." It also directs that nail grooming tools be cleaned before use and, in commercial settings where tools are shared, sterilized before use. Pulling the hangnail is the tearing CDC forbids, pushing it under the fold drives a loose fragment of skin into the tissue that CDC elsewhere describes as a barrier against infection, and leaving it in place does not resolve the snagging that brought the client in.

   Reference: Healthy Habits: Nail Hygiene | Water, Sanitation, and Environmentally Related Hygiene (WASH) | CDC — Healthy Habits: Nail Hygiene, 'Everyday tips'

7. 7A nail technician has attached a full-well nail tip to a client's nail plate. Which tasks remain before the finished tip is assessed?

   1. A. Trimming, shaping and blending the tip
   2. B. Curing the tip under a lamp and wiping the surface
   3. C. Applying a primer to the tip and allowing it to dry
   4. D. Soaking the tip to soften the joint and pressing it flat

   Answer: A

   Explanation: NIC's examination materials list the tasks for this service in order: prepare for nail tip application, "Selects full-well tip and attaches to nail plate of assigned finger," then "Trims, shapes, and blends nail tip," followed by assessment of the final appearance. Blending is what removes the visible ridge where the tip meets the natural nail. Curing under a lamp belongs to light-cured gel work, primer is applied to the natural nail before an enhancement rather than to an attached tip, and soaking is part of removal rather than of application.

   Reference: National Nail Technology Practical Examination CIB — Nail Technology Practical Examination Content Outline, section 4, tasks 4.3 to 4.6

8. 8A nail technician finishes with one client and the next is waiting. Which surfaces and items must be disinfected before the next appointment begins?

   1. A. Every surface or item that came into contact with the client
   2. B. Only the implements that touched the client's nails
   3. C. Only the work table and the arm rests
   4. D. Only the items that are visibly soiled after the service

   Answer: A

   Explanation: NIC's guidance states the rule of thumb as a single sentence: "Disinfect every surface or item that comes into contact with a client between every appointment." It lists salon chairs, pedicure chairs, treatment tables, counters, trays and workstations alongside tools and implements. Each of the other options narrows the scope by tool type, by furniture or by appearance, and the last would leave contaminated but clean-looking surfaces in place, which is why the criterion is contact rather than visible soiling.

   Reference: Disinfection Guidance – NIC Testing — Disinfection Guidance, 'What type of guidance exists regarding disinfection of salon and spa surfaces?', General Disinfection Guidance

9. 9Apart from contact with blood, OSHA describes a second way nail salon workers acquire infections from clients. By what means does OSHA state that workers become exposed to fungal infections of the nails and feet?

   1. A. By touching infected client skin or by using equipment that has not been cleaned
   2. B. By inhaling the dust generated while filing and shaping artificial nail enhancements
   3. C. By absorbing solvent through the skin of the hands during repeated services
   4. D. By swallowing product that has been transferred onto food or drink kept in the work area

   Answer: A

   Explanation: OSHA states that "Workers can also be exposed to fungal infections of the nails and feet by touching infected client skin or by using equipment that has not been cleaned." The three remaining options are real exposure routes that OSHA describes for nail salon work, but each carries chemical rather than biological hazards: OSHA lists breathing in dusts, getting product on the skin, and swallowing product transferred onto food as the ways chemicals in nail products enter the body.

   Reference: Health Hazards in Nail Salons - Biological Hazards | Occupational Safety and Health Administration — Biological Hazards, opening paragraph

10. 10During a consultation a nail technician examines the natural nails to establish a baseline before any service. Which description matches a healthy natural nail?

    1. A. Firm and flexible, shiny, and slightly pink
    2. B. Rigid and inflexible, matte, and slightly pink
    3. C. Firm and flexible, shiny, and opaque white
    4. D. Soft and pliable, shiny, and slightly yellow

    Answer: A

    Explanation: The outline's named reference sets out the baseline: "A healthy nail is firm and flexible, shiny, and slightly pink." It adds that the surface is usually smooth and unspotted, with no splits or deep grooves, and that a healthy nail is translucent so that the pinkish or beige color of the nail bed shows through. Each of the other options alters one of these properties to a state that is genuinely seen on nails but is not the healthy baseline: rigidity without flexibility, loss of translucency, and softening with a change of color are all findings a technician records as departures from health.

    Reference: Ref Milady Nail Structures Ch 05 P 107 — Milady Standard Nail Technology, 8th Edition, Chapter 05, p. 107, description of a healthy nail