REHS Exam Questions Compilation | Questions with 100% Correct Answers | Verified 2024 | 64 Pages

REHS Exam Questions Compilation | Questions with 100% Correct Answers | Verified 2024 | 64 Pages What is the depth at which flies can emerge from a landfill? Correct Answer 6 inches compacted and 5 inches noncompacted Why is the use of cooper sulfate crystals recommended for some septic tanks systems Correct Answer It will destroy roots that the solutions comes in contact with What is the overall purpose of bar screens, comminutors, and grit chambers when it comes to wastewater treatment? Correct Answer It removes larger solid What is the most plentiful form of available water? Correct Answer Groundwater What are Waterborne Diseases? Correct Answer Results from ingestion of water that is harboring a pathogen example: Typhoid fever. What are Water-washed Diseases? Correct Answer Spread by fecal-oral route or person to person contact. Facilitated by lack of personal hygiene. What are Water-based Diseases? Correct Answer Caused by infection arising through ingestion of pathogenic agent Example: guinea worm larvae, Termatode larvae. What are Water-related Diseases? Correct Answer Facilitated by insects vector that breed in water: example filariastus abthropods that carry Dengue fever. What are Inhalation of contaminated water aerosols? Correct Answer Legionella Pneumophila What is the ecologic agent of cyclosporiasis? Correct Answer Cyclospora Cayetanensis What food is associated with cyclosporiasis? Correct Answer Imported Raspberries, Lettuce form South America Most waterborne disease fatalities occurred before 1940 and were attributed to the waterborne illness? Correct Answer Typhoid Fever Waters suitable for drinking water supplies and shellfish rearing are monitored routinely for? Correct Answer Microbiological Quality Only what % of the global content of water constitutes fresh water? Correct Answer 2.6 or 3 Percent What is a waterborne disease that can be prevented through vaccinations is ? Correct Answer Typhoid Fever or Cholera The World Health Organization (WHO) estimates that ______% of all diseases are attributable to inadequate water or sanitation Correct Answer 80 Percent Viral infections readily spread through drinking water, food and water