Hygiene MCQs

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the pathogenic microorganisms constantly living in the soil are except

  • A. Cl. perfringens
  • B. Cl. tetani
  • C. B. anthracis
  • D. M. tuberculose
  • Correct Answer: Option D

one of the short-latency diseases related to hygienic conditions of the houses is

  • A. lung cancer
  • B. hypersensitivity pneumonitis
  • C. increased heart rate and breathing
  • Correct Answer: Option B

this substance kills because it competitively binds to hemoglobin preventing oxygen from binding leading suffocation

  • A. lead poisoning
  • B. inhalation of asbestos
  • C. carbon monoxide poisoning
  • D. pesticide poisoning
  • Correct Answer: Option C

bulb globe thermometer is used for measuring the

  • A. air temperature
  • B. resulting temperature
  • C. relative humidity
  • Correct Answer: Option B

air pollutants are associated with

  • A. respiratory, skin and eye diseases
  • B. allergic and gastrointestinal diseases
  • C. asthma and nephrolithiasis
  • Correct Answer: Option A

chlorination is effective after contact period of

  • A. 15 mins
  • B. 30 mins
  • C. 12 mins
  • Correct Answer: Option B

ammonia in drinking water should be no more than

  • A. 0.3 mg/l
  • B. 0.5 mg/l
  • C. 50.00 mg/l
  • Correct Answer: Option B

the sample for chemical examination should be of capacity

  • A. between 0.3 l and 2 l
  • B. between 0.5 l and 1 l
  • C. between 1 l and 6 l
  • Correct Answer: Option C

the fractions of residual chlorine in tap water are

  • A. free residual chlorine.
  • B. combined residual chlorine
  • C. free and combined residual chlorine
  • D. none of the above
  • Correct Answer: Option C

which areas in hospital buildings are associated with a low risk of nosocomial (hospital-acquired) infections?

  • A. isolation units
  • B. operating theatres
  • C. intensive care units
  • D. administrative areas
  • Correct Answer: Option A