Which of the following are acceptable to use when utilizing chemical cleaning agents on aircraft?

• A. Cotton fiber wiping cloths when using a flammable agent
• B. Atomizing spray equipment
• C. Both cotton fiber wiping cloths and atomizing spray equipment
• D. Synthetic fiber wiping cloths when using a flammable agent

Answer: (C)

The key idea is choosing safe, appropriate tools and methods for applying chemical cleaning agents on aircraft without leaving contaminants or creating ignition risks. Both wiping cloths and spray equipment can be used effectively, as long as safety and compatibility are considered.

Cotton fiber wiping cloths can be used to wipe and blot surfaces, absorb solvents, and remove residues. They’re acceptable when clean and used in a way that minimizes lint contamination and static buildup. Atomizing spray equipment is also acceptable because it provides even distribution of the cleaner, allows you to reach tight or complex areas, and reduces direct contact with surfaces. The important safeguards are that the cloths should be clean, lint-free, and used damp or properly controlled to avoid leaving fibers or generating static, and the spray equipment should be rated for the solvent, grounded, and used with adequate ventilation to prevent ignition, especially with flammable agents.

In short, both methods are permissible when used with proper suitability and safety practices.