WAEC DYEING AND BLEACHING
NUMBER TWO
(2a)
Safety precautions refer to the measures and practices put in place to prevent or minimize the risk of accidents, injuries, or damage in a particular environment or during a specific activity.
(2b)
(PICK ANY THREE)
(i) goggles
(ii) Fire extinguishers
(iii) Emergency communication devices (phones, radios)
(iv) Buckets
(2c)
(i) Ensure proper ventilation and air circulation to maintain a safe and comfortable work environment.
(ii) Implement appropriate lighting conditions to prevent eye strain and improve visibility.
(iii) Secure and organize equipment, materials, and work surfaces to minimize the risk of tripping, falling, or other accidents.
(iv) Establish clear emergency procedures and make sure all studio users are familiar with them.
(v) Maintain good housekeeping practices, such as regularly cleaning and organizing the studio space.
DYEING AND BLEACHING
(5a)
(i)Chlorine bleach (sodium hypochlorite)
(ii)Hydrogen peroxide
(iii)Sodium percarbonate (oxybleach)
(iv)Sodium chlorite
(5b)
(i)Disinfection: Bleaching kills bacteria, viruses, and other pathogens, making it effective for disinfecting surfaces, water, and laundry.
(ii)Whitening: Bleaching can remove stains and whiten fabrics, making them look brighter and cleaner.
(iii) Deodorizing: Bleaching agents can help eliminate unpleasant odors by breaking down organic compounds that cause them.
(iv)Mold and mildew removal: Bleach is effective in killing and preventing the growth of mold and mildew on surfaces like tiles, grout, and bathroom fixtures.
(v)Water treatment: Bleaching is used in water treatment processes to remove impurities and disinfect water for safe consumption.
Revers State