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Barber Practice Test: State Board Shaving Exam Prep/
Questions with Complete Solutions/ Rated A+
For the optimal level of disinfection, the best choice would be:
- 50 to 60% isopropyl alcohol
- detergent
- a hospital-level disinfectant
- an antiseptic - Correct Answer - c. a hospital-level disinfectant
The group of disinfectants that are toxic and caustic and cause rubber and
plastic materials to soften is:
- quats
- antiseptics
- 60% isopropyl alcohol
- phenols - Correct Answer - d. phenols
Hard water can be softened by distillation or by the use of:
- sodium carbonate
- sodium chloride
- magnesium salts
- calcium salts - Correct Answer - a. sodium carbonate
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Only aqueous (water) solutions have:
- hydrogen
- pH
- oxygen
- surfactants - Correct Answer - b. pH
Compared to skin and hair, water is:
- the same pH
- 10 times more acidic
- 100 times more acidic
- 100 times more alkaline - Correct Answer - d. 100 times more alkaline
Solutions with a pH below 7.0:
- contract and harden the hair
- taste bitter
- feels slippery
- turn litmus paper from red to blue - Correct Answer - a. contract and
harden the hair
Solutions with a pH above 7.0:
- tightens the skin
- softens and swell the hair
- turn litmus paper from blue to red
- taste sour - Correct Answer - b. soften and swell the hair
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Oxidation and reduction are referred as:
- demineralization
- redox reactions
- distillation
- ionization - Correct Answer - b. redox reactions
When salt is dissolved in water, the salt is the:
- solvent
- solute
- solution
- strength - Correct Answer - b. solute
Before you disinfect a brush, comb, shears, or other tool, you should:
- rinse it with water
- wash it with soap and hot water
- wipe it with a clean cloth towel
- wipe it with a fresh paper towel - Correct Answer - b. wash it with soap
and hot water
Towels and other linens should be sanitized after use by:
- washing in hot water and weak quat solution
- washing in hot water and detergent and bleach
- complete immersion in an EPA-registered disinfectant
- complete immersion in Lysol solution - Correct Answer - b. washing in
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hot water with detergent and bleach