PSI California Barber Examination – Comprehensive State Board Barbering Study Guide and Pr, Exams of Cosmetology

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PSI CALIFORNIA BARBER ACTUAL EXAM QUESTIONS AND

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Summarized Exam Coverage (PSI California Barber Exam)  Infection control & safety (disinfection, sterilization, sanitation, EPA-registered disinfectants, blood spill procedures)  Tools & equipment (clippers, shears, razors, hones, strops, neck strips, disinfectant containers)  Barbering techniques (haircutting, shaving, beard trimming, taper/fade, clipper-over- comb, shears work)  Chemical services (hair relaxing, permanent waving, curl re-forming — application, processing, safety)  Shampooing & scalp treatments (products, massage, draping, pH balance)  Facial & shaving procedures (pre-shave, razor handling, stroke direction, post-shave)  Anatomy & physiology (hair structure, skin layers, nail disorders, muscles, nerves of head/neck)  Chemistry (pH, oxidizing agents, reducing agents, hair color chemistry)  State barber laws & rules (license display, health permits, recordkeeping, sanitation requirements)  Professional ethics & salon management (appointments, client confidentiality, safety data sheets) 200 Randomized Scenario-Based MCQs (with Answers & Rationales)

1. A client has nits attached to the hair shaft 1 cm from the scalp. What should you do? A) Proceed with haircut but avoid touching the area B) Apply conditioner and rinse thoroughly C) Refuse service and refer to a physician D) Shave the head completely Answer: C — Nits indicate active pediculosis capitis; barbers must not perform services until infestation is treated by a doctor. 2. You nick a client’s skin while shaving and a small amount of bleeding occurs. Your first step is: A) Apply styptic powder and continue shaving B) Stop service, put on gloves, clean wound, apply antiseptic and styptic C) Wipe with an alcohol pad and finish the shave D) Apply pressure with a dry towel for 30 seconds Answer: B — Standard blood exposure protocol: gloves, clean, antiseptic, control bleeding, then determine if service can continue. 3. A state inspector notices your clipper blades have visible hair debris and dried product. Which violation is cited? A) Improper ventilation B) Lack of chemical labeling C) Failure to clean and disinfect tools after each client D) Expired sharps container

D) Inadequate pre-shave oil Answer: B — Stop immediately, remove product with cool water; may be allergy to lather or excessive heat.

7. You drop a pair of shears on the floor during a haircut. What must you do before continuing? A) Wipe with a cloth and proceed B) Spray with disinfectant and rinse C) Clean with soap and water, then disinfect D) Replace with another sanitized shear Answer: D — Dropped tool is contaminated; use a disinfected backup or properly clean/disinfect the fallen one (but replacing is fastest and safest). 8. Which concentration of sodium hydroxide in a relaxer is considered high strength for coarse hair? A) 1.5% B) 2.5% C) 4% D) 6% Answer: B — 2 .0– 2 .5% is typical; above 2.5% increases burn risk. 4 – 6 % is never used legally on scalp. 9. A client with a beard wants a perfectly straight neckline. Which tool gives the sharpest line? A) Electric trimmer B) Clipper with #1 guard

C) Straight razor D) Edging shears Answer: C — Straight razor provides clean, precise, close-cutting line for necklines and cheeks.

10. You finish a haircut and place used towels in a closed bin. According to California rules, how often must you launder linens? A) Weekly B) After each use, before serving next client C) Daily at end of shift D) Every other day Answer: B — All linens and towels must be changed after each client, laundered before reuse. 11. A client’s scalp is red, inflamed, and has yellowish crusts. Most likely condition: A) Seborrheic dermatitis B) Psoriasis C) Pediculosis D) Tinea capitis Answer: A — Yellowish, greasy scales on red base = seborrheic dermatitis; refer to physician. 12. Which method correctly disinfects a plastic comb with no visible debris? A) Wipe with alcohol pad B) Immerse in EPA-registered bactericidal, virucidal, fungicidal solution for label time C) Rinse with hot water and dry D) Spray with water and bleach 1:

Answer: B — California requires original or properly labeled secondary containers with contents and hazard warnings.

16. A client’s hair breaks easily after a sodium hydroxide relaxer. Most likely cause: A) Overly porous hair B) Not enough neutralizer C) Relaxer left too long or applied to previously relaxed hair D) Hard water rinse Answer: C — Over-processing or overlapping relaxer causes severe damage and breakage. 17. Which action violates California’s Barber Act regarding license display? A) Keeping license in the office drawer B) Framed license on the station mirror C) Wallet-sized license in purse D) Copy of license posted in breakroom Answer: A — License must be displayed conspicuously in the work area, not hidden. 18. A client with diabetes has a small cut on his chin from shaving. It bleeds longer than normal. You should: A) Apply more styptic and finish B) Wrap with gauze and send home C) Monitor, apply pressure, refer to physician if bleeding doesn’t stop D) Ignore, it will clot

Answer: C — Diabetes may cause delayed clotting; barbers should not assume normal hemostasis.

19. Which is a true statement about a strop? A) Cleans the blade B) Realigns the razor’s microscopic edge C) Sharpens the blade D) Disinfects the razor Answer: B — Stropping corrects the folded edge; sharpening requires a hone. 20. You see a colleague using the same neck strip on three clients. What should you do? A) Report to the manager B) Nothing, it’s only neck strip C) Remind them neck strips are single-use D) Take the strip and throw it away silently Answer: C — First, professional peer reminder; if ignored, report. 21. A client’s hair is 75% gray and wants a dark brown color. Which developer strength is typical for gray coverage? A) 10 volume B) 20 volume C) 40 volume D) No developer needed Answer: B — 20 volume (6%) provides good lift and gray coverage.

25. What is the minimum contact time for a tuberculocidal disinfectant used in a California barbershop? A) 30 seconds B) 2 minutes C) 10 minutes (or as per label) D) Overnight Answer: C — Most EPA hospital-grade disinfectants require 10 minutes for TB kill; always follow label. 26. A client complains of severe itching a day after a chemical relaxer. No visible redness. Possible cause: A) Normal healing B) Residual alkalinity or improper neutralization C) Fungal infection D) Dry shampoo Answer: B — High pH residue causes delayed itching; recommend acidifying rinse. 27. You are about to shave a client but forgot to put a neck strip. Why is it required? A) Comfort B) Prevents towel from touching skin C) Absorbs excess lather D) Legal requirement for hygiene barrier

Answer: D — Neck strip is a clean barrier between client’s skin and the towel that contacts multiple clients.

28. When using a new blade in a shavette, you must: A) Strop it first B) Wipe with alcohol C) Use as is — single-use pre-sterilized D) Sharpen on a hone Answer: C — Disposable blades come sterile; no stropping needed. 29. A client has a head lice infestation but asks you to just “trim around it.” You should: A) Do a light trim with clippers B) Refuse service and explain it’s illegal C) Offer a shave instead D) Wear gloves and proceed Answer: B — California rules prohibit service on infested skin/scalp. 30. Which solution is NOT acceptable for disinfecting barber combs? A) Barbicide B) 70% isopropyl alcohol C) EPA-registered quat solution D) Bleach 1:9 ratio Answer: B — Alcohol is not EPA-registered as a disinfectant in CA for salon tools (evaporates too fast, not tuberculocidal).

C) Cordon off area, put on gloves, pick up large pieces, then disinfect area D) Mop immediately Answer: C — Safety first: protect clients/staff, then proper cleanup.

35. A client with psoriasis on the scalp wants a haircut. You should: A) Refuse service B) Cut hair but avoid irritated patches C) Shampoo with medicated dandruff shampoo D) Use clippers only Answer: B — Psoriasis is not contagious; can perform service but avoid abrasion. 36. After disinfecting a comb, how should it be stored? A) In a drawer with other tools B) In a clean, covered, dry container C) In the disinfectant solution D) On the counter under a towel Answer: B — Store disinfected tools in sanitary closed container until use. 37. You are applying a perm to previously bleached hair. It feels gummy. You should: A) Proceed with shorter processing time B) Use a stronger neutralizer C) Stop immediately, rinse, condition — hair is over-processed D) Increase heat Answer: C — Gummy texture indicates severe damage; chemical service is contraindicated.

38. What is the proper dilution for sodium hypochlorite (bleach) as a disinfectant in barbershops? A) 1 tablespoon per gallon B) 1:10 ratio (1 part bleach to 9 parts water) C) Full strength D) 1:100 ratio Answer: B — 1 :10 bleach to water is standard for blood spill disinfection. 39. A client’s hair is resistant to curling. Which perm solution type is best? A) Acid perm (pH 6.5– 7. 5 ) B) Alkaline perm (pH 8.5– 9. 5 ) C) Thio-free D) Low pH exothermic Answer: B — Alkaline perms have stronger swelling action for resistant hair. 40. During a shave, you realize you used a blade from an unlabeled container. What is the risk? A) Dull blade B) Possible contamination or expired C) Rust D) Nothing, blades are all same Answer: B — Unlabeled may be previously used or non-sterile. 41. A client says his last barber gave him razor bumps (pseudofolliculitis barbae). Which change reduces this?

D) Ethyl alcohol Answer: B — Thioglycolates break disulfide bonds in hair.

45. A client’s hair has a strong odor after a perm, even after rinsing. What is most likely? A) Over-neutralizing B) Insufficient rinsing of thio compound C) Using acid perm D) Hard water Answer: B — Residual ammonium thioglycolate causes sulfur odor. 46. You are setting up your station. Where must your license be placed? A) In your wallet B) On the wall within view of clients C) In the back office D) On the floor cabinet Answer: B — Conspicuously displayed in work area. 47. A client’s hair is extremely oily with dandruff. Which shampoo type is best? A) Moisturizing B) Clarifying or medicated (zinc pyrithione) C) Protein D) Color-safe Answer: B — Clarifying removes excess oil; medicated treats dandruff.

48. You cut your finger on a broken hairspray bottle. First aid includes: A) Continue serving client then bandage B) Stop, wash cut, apply antiseptic, bandage, wear glove C) Super glue the cut D) Ignore if not deep Answer: B — Protect yourself and client from blood exposure. 49. Which is NOT allowed in a California barbershop regarding animals? A) Service dog for blind barber B) Fish aquarium C) Pet parrot on barber’s shoulder D) None of the above Answer: C — Only service animals permitted; pets not allowed. 50. A client says his hair is thinning on top. Which service is outside barber scope? A) Scalp massage B) Prescribing minoxidil C) Cutting thinning hair D) Low-tension haircut Answer: B — Prescribing medication is medical practice. 51. Straight razor stropping should be done: A) Before each shave B) After each shave

55. A client asks for a “skin fade” but has severe acne on the sides. Best practice: A) Use clippers with #1 guard B) Perform skin fade carefully C) Avoid shaving over active acne to prevent infection D) Use razor for clean look Answer: C — Clippers over acne can spread bacteria; avoid direct contact. 56. After a chemical relaxer, the client complains of scalp burning. You should: A) Apply more relaxer to neutralize B) Immediately rinse with cool water, use neutralizing shampoo C) Add conditioner D) Blow-dry on cool Answer: B — Burning indicates over-processing; immediate removal. 57. Which disease requires you to refuse service until cleared by a physician? A) Dandruff B) Common cold C) Ringworm (tinea capitis) D) Psoriasis Answer: C — Ringworm is contagious fungal infection. 58. The guard number on clippers corresponds to: A) Blade sharpness B) Length of hair left in inches/eighths

C) Motor speed D) Cord length Answer: B — #1 = 1/8 inch, #2 = 1/4 inch, etc.

59. A client wants a design carved into his fade using a trimmer. Which is correct? A) Use corner of blade, disinfect before and after B) Use permanent marker C) Use shears D) Use razor Answer: A — Trimmer corner for fine lines; always disinfect between clients. 60. You see a new barber not wearing gloves while applying a chemical relaxer. You should: A) Say nothing B) Report to board immediately C) Explain that gloves are required for chemical services D) Hand them gloves silently Answer: C — Educate peer; gloves prevent chemical burns and infection. 61. A client has a metal plate in his skull from surgery. Which tool is contraindicated? A) Shears B) Clippers C) Magnetic clipper blades if magnetic plate D) Comb Answer: C — Some implants are magnetic; check with client.