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MCQs

Total Questions : 133 | Page 3 of 14 pages
Question 21. The electric sector field is not subject to hysteresis.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 22. Which of the following components need to be added in order to increase the resolution?
  1.    Ion source
  2.    Detector
  3.    Magnetic sector
  4.    Electric sector
 Discuss Question
Answer: Option D. -> Electric sector
Answer: (d).Electric sector
Question 23. An accuracy of 1 part in 10² has been obtained in precision mass measurements.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 24. Nier-Johnson geometry involves a deflection of which of the following radians in a radial electrostatic field analyser?
  1.    Π
  2.    Π/2
  3.    Π/3
  4.    Π/4
 Discuss Question
Answer: Option B. -> Π/2
Answer: (b).Π/2
Question 25. Which of the following is commonly varied in magnetic deflection mass spectrometer?
  1.    Electric sector
  2.    Magnetic fold strength
  3.    Magnetic constant
  4.    Electric constant
 Discuss Question
Answer: Option B. -> Magnetic fold strength
Answer: (b).Magnetic fold strength
Question 26. Which of the following is not a component of the time of flight analyser spectrometer?
  1.    Ion source
  2.    Field free separation region
  3.    Electron multiplication region
  4.    Photo tube
 Discuss Question
Answer: Option D. -> Photo tube
Answer: (d).Photo tube
Question 27. Time of flight mass spectrometer has an unlimited mass range.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 28. All the ions entering the tube have the same kinetic energy.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 29. If all the ions have the same kinetic energy how are their masses related to their velocities?
  1.    Mass and velocity are equal
  2.    Mass and velocity are not related
  3.    Mass and velocity are directly proportional
  4.    Mass and velocity are inversely proportional
 Discuss Question
Answer: Option D. -> Mass and velocity are inversely proportional
Answer: (d).Mass and velocity are inversely proportional
Question 30. Which of the following is not an advantage of mass spectrometer?
  1.    Simple
  2.    Rugged
  3.    High sensitivity
  4.    Unlimited mass range
 Discuss Question
Answer: Option C. -> High sensitivity
Answer: (c).High sensitivity

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