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MCQs

Total Questions : 45 | Page 5 of 5 pages
Question 41. Which of the following methods make use of pyrolysis while used for detecting methane?
  1.    Mass spectroscopy
  2.    Flame ionization detector
  3.    Ultraviolet absorption
  4.    Gas chromatography
 Discuss Question
Answer: Option B. -> Flame ionization detector
Answer: (b).Flame ionization detector
Question 42. Which of the following is not the characteristic of flame ionization detector?
  1.    Good linearity
  2.    Narrow range of concentration
  3.    High sensitivity
  4.    Fast response
 Discuss Question
Answer: Option B. -> Narrow range of concentration
Answer: (b).Narrow range of concentration
Question 43. In flame ionization detector, the ions collected on the negatively charged grid are amplified at the high impedance amplifier.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 44. In flame ionization detectors, which of the following is the range adequate for atmospheric sampling?
  1.    0-1 ppm
  2.    0-2 ppm
  3.    0-20 ppm
  4.    0-100 ppm
 Discuss Question
Answer: Option C. -> 0-20 ppm
Answer: (c).0-20 ppm
Question 45. Given below, is the diagram of Ultraviolet Fluorescence method. Identify the unmarked component.Given Below, Is The Diagram Of Ultraviolet Fluorescence Meth...
  1.    Filter
  2.    Electronic circuit
  3.    Supply
  4.    Fluorescence chamber
 Discuss Question
Answer: Option D. -> Fluorescence chamber
Answer: (d).Fluorescence chamber

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