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MCQs

Total Questions : 78 | Page 2 of 8 pages
Question 11. The x-ray beam produced by the primary x-ray tube passes through which of the following components to produce the incident radiation?
  1.    Detector
  2.    Slit-collimator arrangement
  3.    Sample reflector
  4.    Monochromator
 Discuss Question
Answer: Option B. -> Slit-collimator arrangement
Answer: (b).Slit-collimator arrangement
Question 12. Which of the following devices are used as a detector?
  1.    Thermistor
  2.    Optical detector
  3.    Solid state detector
  4.    Golay cell
 Discuss Question
Answer: Option C. -> Solid state detector
Answer: (c).Solid state detector
Question 13. Which of the following crystals are polished to act as the cut-off reflector?
  1.    Quartz
  2.    Beryllium
  3.    Silicon
  4.    Lithium
 Discuss Question
Answer: Option C. -> Silicon
Answer: (c).Silicon
Question 14. Which of the following components are used as the sample carrier?
  1.    Curvette
  2.    Flask
  3.    Capillary tube
  4.    Float glass
 Discuss Question
Answer: Option D. -> Float glass
Answer: (d).Float glass
Question 15. The suppression of high energy bremsstrahlung radiation improves which of the following?
  1.    Signal to background ratio
  2.    Accuracy
  3.    Sensitivity
  4.    Coherence
 Discuss Question
Answer: Option A. -> Signal to background ratio
Answer: (a).Signal to background ratio
Question 16. Which of the following is not a type of optics employed in electron probe microanalyser?
  1.    Electron optics
  2.    Light optics
  3.    X-ray optics
  4.    Gamma optics
 Discuss Question
Answer: Option D. -> Gamma optics
Answer: (d).Gamma optics
Question 17. Total reflection X-ray fluorescence spectrometer is attractive for elements which lack reliable wet chemical methods.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 18. The specimen is mounted inside which of the following components?
  1.    Test tube
  2.    Glass capillary tube
  3.    Vacuum column
  4.    Curvette
 Discuss Question
Answer: Option C. -> Vacuum column
Answer: (c).Vacuum column
Question 19. The electrons are accelerated by voltages in which of the following ranges?
  1.    5 and 50kV
  2.    50 and 500kV
  3.    500 and 5000kV
  4.    25 and 250kV
 Discuss Question
Answer: Option A. -> 5 and 50kV
Answer: (a).5 and 50kV
Question 20. The electron optics consists of an electron gun followed by which of the following components?
  1.    Collimator
  2.    Slit
  3.    Amplifier
  4.    Electron beam probe
 Discuss Question
Answer: Option D. -> Electron beam probe
Answer: (d).Electron beam probe

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