REHS\/RS Exams Compilations (Latest 2023\/2024) Questions and Verified Answers| 100% Correct| Grade A Guaranteed<\/p>\n\n\n\n
REHS\/RS Exams Compilations (Latest
2023\/2024) Questions and Verified Answers|
100% Correct| Grade A Guaranteed
Q: What is the horizontal part of the stairs you step on called?
Answer:
Tread
Q: What is the term for a statistical estimate of an oral dose of a chemical that produces a lethal
effect on half of an animal population?
Answer:
LD 50
Q: Rocky Mountain spotted fever is spread by:
Answer:
Ticks
Q: Psittacosis is MOST commonly spread by:
Answer:
Pigeons
Q: When two pollutants are combined, the effects are greater than the sum of the individual
effects. This is called:<\/p>\n\n\n\n
Answer:
Synergism
Q: Which of the following is MOST effective for controlling ragweed?
Answer:
2,4-D
D-Dichlorophenoxyacetic acid
Q: One of the FIRST actions an individual should take upon hearing an order for the evacuation
of homes and businesses is turn off the:
Answer:
Public Utility services to the building
Q: What are the peak seasons for rats to breed in temperate zones?
Answer:
Spring and Fall
Q: In emergency situations, when the water is turbid or colored but not chemically
contaminated, the chlorine dosage should be:
Answer:
Doubled
Q: The difference between a disaster and terrorism is best described as:
Answer:<\/p>\n\n\n\n
Intent
Q: Chemicals that have been used for pool disinfection include chlorine, chloro-iso-cyanurates,
bromine, and:
Answer:
I (Iodine)
Q: A swimming pool filtration system should filter the entire volume of water at MINIMUM of
every:
Answer:
6 hours
Q: Due to the large quantity of floating organisms and materials, the gutters or skimmers
should receive what MINIMUM percent of the total pool water?
Answer:
60%
Q: Approved emergency response plans at nuclear electric power plan sites must be tested AT
LEAST every:
Answer:
2 years
Q: Swimming pool water clarity is measured in terms of NTU or Nephelometer Turbity Unity.
It is recommended that a level of 0.5 NTU:
Answer:<\/p>\n\n\n\n
Shall not be exceeded
Q: The interval between exposure to an infectious agent and the appearance of the first
symptom is called:
Answer:
Incubation period
Q: An infected organism that does not exhibit symptoms during the spread of an illness is
called a:
Answer:
Carrier
Q: What is the usual mode of infection from Salmonella?
Answer:
Ingestion of contaminated food
Q: Which one of the following pesticides can be legally used in the United States by the public?
Answer:
Diazinon
Q: All of the following are used to disinfect water EXCEPT:<\/p>\n\n\n\n