Information Retrieval System MCQs with answers Page - 2

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Q. Which of the following is the wave number of near infrared spectrometer?

  • (A) 4000 – 200 cm-1
  • (B) 200 – 10 cm-1
  • (C) 12500 – 4000 cm-1
  • (D) 50 – 1000 cm-1

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Q. Which of the following options are correct in terms of wavelength for the different types of IR spectrometer?

  • (A) near ir: 0.8 – 2.5 mm
  • (B) mid ir: 0.8 – 2.5 mm
  • (C) far ir: 2.5 – 50 mm
  • (D) mid ir: 50 – 100 mm

A

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Q. Which of the following is not a composition of Nernst glower or Nernst filament?

  • (A) oxides of zirconium
  • (B) oxides of barium
  • (C) oxides of yitrium
  • (D) oxides of thorium

A

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Q. What is the composition of Globar rod which is used as a source in Mid IR spectroscopy?

  • (A) silicon carbide
  • (B) silver chloride
  • (C) silicon dioxide
  • (D) silver carbide

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Q. Bolometer, a type of detector, is also known as

  • (A) resistance temperature detector (rtd)
  • (B) thermistor
  • (C) thermocouple
  • (D) golay cell

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Q. Which of the following is not used as pyroelectric material used in pyroelectric transducers in Infrared spectroscopy?

  • (A) triglycine sulphate
  • (B) deutrated triglycine sulphate
  • (C) some polymers
  • (D) tetraglycine sulphate

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Q. Which of the following is the principle of Golay cell which is used as a detector in IR spectroscopy?

  • (A) expansion of gas upon heating
  • (B) increase in resistance due to an increase in temperature and vice versa
  • (C) temperature difference gives rise to a potential difference in the material
  • (D) decrease in resistance due to an increase in temperature

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Q. spread between IR transmitting windows. What is the name of this solid sample treatment technique?

  • (A) pressed pellet
  • (B) mull technique
  • (C) solid films
  • (D) solids run in solution

A

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Q. d) IC 74138

  • (A) &
  • (B) *
  • (C) ^
  • (D) ?

A

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Q. Which feature is not used when SQL features are not being supported?

  • (A) begin
  • (B) end
  • (C) commit
  • (D) rollback

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