CPA Sanitation & Disease Prevention 2 — Questions and Answers
Question 1: What is the minimum recommended hand-washing duration with soap and water before eating in a petroleum field environment?
- 5 seconds
- 10 seconds
- 20 seconds (Correct answer)
- 60 seconds
Correct answer: 20 seconds
The CDC recommends scrubbing hands with soap for at least 20 seconds to effectively remove petroleum residues and pathogens.
Question 2: Which type of dermatitis is most commonly associated with repeated skin contact with petroleum-based products?
- Atopic dermatitis
- Contact dermatitis (Correct answer)
- Seborrheic dermatitis
- Nummular dermatitis
Correct answer: Contact dermatitis
Contact dermatitis results from direct skin exposure to irritants or allergens like petroleum solvents and cutting fluids.
Question 3: When a petroleum worker develops oil acne (chloracne), what is the primary cause?
- Bacterial infection from dirty tools
- Prolonged skin exposure to chlorinated hydrocarbons or crude oil (Correct answer)
- Dehydration in hot environments
- Allergic reaction to PPE rubber
Correct answer: Prolonged skin exposure to chlorinated hydrocarbons or crude oil
Oil acne (chloracne) is caused by prolonged skin contact with chlorinated hydrocarbons, cutting oils, or crude oil clogging skin follicles.
Question 4: What is the purpose of a 'buddy system' in sanitation protocols at remote petroleum sites?
- To reduce workload per person
- To ensure each worker monitors another for signs of chemical exposure or illness (Correct answer)
- To share PPE between shifts
- To speed up decontamination procedures
Correct answer: To ensure each worker monitors another for signs of chemical exposure or illness
The buddy system ensures a second person can identify early symptoms of chemical exposure or illness that the affected worker may not recognize themselves.
Question 5: Which practice BEST prevents the spread of hydrocarbon-related skin disease among petroleum crew members sharing tools?
- Rinsing tools with water between uses
- Wiping tools with a dry cloth
- Disinfecting shared tools and wearing gloves during use (Correct answer)
- Using tools only in ventilated areas
Correct answer: Disinfecting shared tools and wearing gloves during use
Disinfecting shared tools and using protective gloves prevents cross-contamination of skin pathogens and hydrocarbon residues between workers.
Question 6: A petroleum worker notices a colleague with yellowing skin and eyes after weeks on-site. Which disease should be suspected first?
- Influenza
- Hepatitis A from contaminated water or food (Correct answer)
- Malaria
- Typhoid fever
Correct answer: Hepatitis A from contaminated water or food
Jaundice (yellow skin and eyes) combined with field conditions suggests Hepatitis A, which spreads via fecal-oral contamination of water or food.
Question 7: Which of the following is a key sanitation requirement for portable toilets at a petroleum worksite?
- Placed as close to work areas as possible for convenience
- Serviced and cleaned at least once per week per OSHA guidelines (Correct answer)
- Stocked with petroleum-resistant wipes only
- Used only by supervisory personnel
Correct answer: Serviced and cleaned at least once per week per OSHA guidelines
OSHA requires portable toilets at construction and field worksites to be serviced regularly (at minimum weekly) to prevent disease from fecal contamination.
CPA Sanitation & Disease Prevention 2
What is the minimum recommended hand-washing duration with soap and water before eating in a petroleum field environment?