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MCQs

Total Questions : 133 | Page 9 of 14 pages
Question 81. Tandem mass spectroscopy combines which of the following devices?
  1.    Mass spectrometer and gas-solid chromatograph
  2.    Mass spectrometer and gas-liquid chromatograph
  3.    Mass spectrometer and gas chromatograph
  4.    Mass spectrometer and mass spectrometer
 Discuss Question
Answer: Option D. -> Mass spectrometer and mass spectrometer
Answer: (d).Mass spectrometer and mass spectrometer
Question 82. Using an interface would reduce detection limit and sensitivity.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 83. Gas burden from conventional LC flow rates is which of the following?
  1.    1ml/min of water produces 1.2 l/mm of gas
  2.    1ml/min of water produces 2.4 l/mm of gas
  3.    2ml/min of water produces 3.2 l/mm of gas
  4.    1ml/min of water produces 4.2 l/mm of gas
 Discuss Question
Answer: Option A. -> 1ml/min of water produces 1.2 l/mm of gas
Answer: (a).1ml/min of water produces 1.2 l/mm of gas
Question 84. Which of the following is used to separate a single mass that is characteristic of a given analyte in a mixture?
  1.    First mass spectrometer
  2.    Second mass spectrometer
  3.    Filter
  4.    Precursor
 Discuss Question
Answer: Option A. -> First mass spectrometer
Answer: (a).First mass spectrometer
Question 85. In tandem spectroscopy, the first stage sepatation device is a mass spectrometer.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 86. The mass-selected ions are activated in which of the following ways that cause them to fall apart to produce product ions?
  1.    Collisional activation
  2.    Evaporational activation
  3.    Inert gas activation
  4.    Thermal activation
 Discuss Question
Answer: Option A. -> Collisional activation
Answer: (a).Collisional activation
Question 87. A magnetic sector alone can be used as a mass spectrometer, with roughly _____ resolution.
  1.    Low
  2.    High
  3.    Unit
  4.    Infinite
 Discuss Question
Answer: Option C. -> Unit
Answer: (c).Unit
Question 88. What does the acronym ‘MIKES’ stand for?
  1.    Mass-analysed ion kinetic energy spectrometer
  2.    Mass-based induced kinetic energy spectrometer
  3.    Mass invasive kinetic electric spectrometer
  4.    Mass-analyser in a kinetic energy-type spectrometer
 Discuss Question
Answer: Option A. -> Mass-analysed ion kinetic energy spectrometer
Answer: (a).Mass-analysed ion kinetic energy spectrometer
Question 89. In reverse-geometry mass spectrometer which of the following precedes the electric sector?
  1.    Nebulizer
  2.    Orifice
  3.    Magnetic sector
  4.    Mass spectrometer
 Discuss Question
Answer: Option C. -> Magnetic sector
Answer: (c).Magnetic sector
Question 90. The final MS/MS spectrum consists only of product ions from the selected precursor.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True

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