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A series of multiple-choice questions and answers related to environmental health and safety (rehs) topics. It covers various aspects of public health, including infectious diseases, food safety, environmental hazards, and radiation. The questions are designed to test knowledge and understanding of key concepts in the field.
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The infection reservoir for arthropod-borne viral encephalitis is generally accepted to be... a)Horses b)Humans c)Birds d)Fish correct answer: Birds The First Methodist Church of Axton had an election banquet on Sunday night at 6pm. Thirty-seven persons attended. On Monday afternoon, approximately 3pm, two persons begin experiencing vertigo, headache, diplopia and some nerve paralysis. You would suspect... a)Vibro parahaemolyticus b)Staphylococcus aureus c)Clostridium botulinum d)Shigella correct answer: Clostridium botulinum Which microorganism is commonly associated with skin rashes and contamination in whirlpools? a)Staphylococcus aureus b)Pseudomonas aeruginosa c)Escherichia coli d)Clostridium perfringens correct answer: Pseudomonas aeruginosa
If swimmers in a particular swimming pool complained of extreme eye irritation, the cause would probably be... a)Improper PH value b)High levels of free chlorine c)High water temperatures d)Leptospira eye pathogens correct answer: Improper pH value Human infectious diseases transmitted through milk include all those listed below except one. Which is not a milk-borne disease? a)Tuberculosis b)Brucellosis c)Q fever d)Meningitis correct answer: Not a milk borne disease: Meningitis Milk born diseases: Tuberculosis, Brucellosis, Q fever Rodents are a public health problem because they may carry a number of diseases. Which of the following diseases is not associated with rodents? a)Leptospirosis b)Salmonellosis c)Plague d)Onchocerciasis correct answer: Onchocerciasis Brucellosis (Undulant fever, Malta fever, Mediterranean fever, Bangs disease) is NOT caused by: a)Brucella abortus b)Brucella melitensis c)Brucella suis
d)Less than 1.2x10(-3)eV correct answer: Greater than 10(16)Hz Which of the following is not one of the common deficiencies found in hospital radiography? a)Failure to confine x-ray beam to the part of the patient's body being examined. b)Useful beam and scatter radiation passing through windows and into occupied regions nearby c)Holding of the patient or film with instruments during exposure d)Missing filters correct answer: Holding of the patient or film with instruments during exposure In producing a noise-induced permanent threshold shift, _______ is the least important factor involved. a)Overall intensity of the noise b)The work shift of the employee c)The frequency characteristic of the noise d)The duration of the noise exposure correct answer: The work shift of the employee Which of the following effects best characterizes the influence of ozone in humans? a)A thickening of small pulmonary arteries is induced, leading to chronic pulmonary disease, emphysema, and right heart failure. b)The oxygen in hemoglobin is replaced which leads to asphyxiation. c)Ozone accumulates in the aveoli indu correct answer: ...