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MCQs

Total Questions : 80 | Page 2 of 8 pages
Question 11. SAW stands for ________________
  1.    Sound actuated wave
  2.    Surface acoustic wave
  3.    Sound activated wave
  4.    Surface activated wave
 Discuss Question
Answer: Option B. -> Surface acoustic wave
Answer: (b).Surface acoustic wave
Question 12. Acoustic wave in QCM meets minimum impedance when thickness of device is __________________
  1.    Equal to wavelength of acoustic wave
  2.    Product of Half of wavelength of acoustic wave
  3.    Product of quarter of wavelength of acoustic wave
  4.    None of the mentioned
 Discuss Question
Answer: Option B. -> Product of Half of wavelength of acoustic wave
Answer: (b).Product of Half of wavelength of acoustic wave
Question 13. Which of the following is most preferred?
  1.    QCM and SAW sensor
  2.    QCM and BAW sensor
  3.    QCM
  4.    All of the mentioned
 Discuss Question
Answer: Option A. -> QCM and SAW sensor
Answer: (a).QCM and SAW sensor
Question 14. Direction of acoustic wave in QCM will be ______________
  1.    Same as crystal surface
  2.    Opposite to crystal surface
  3.    Perpendicular to crystal surface
  4.    None of the mentioned
 Discuss Question
Answer: Option C. -> Perpendicular to crystal surface
Answer: (c).Perpendicular to crystal surface
Question 15. Quartz can be used as bio sensors.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 16. QCM stands for _______________
  1.    Quartz crystal micro balance
  2.    Quality control balance
  3.    Quartz crystal magnifier
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Quartz crystal micro balance
Answer: (a).Quartz crystal micro balance
Question 17. Magnetic bio sensor is wide used for ____________
  1.    Blood detection
  2.    DNA detection
  3.    ECG detection
  4.    EMG detection
 Discuss Question
Answer: Option B. -> DNA detection
Answer: (b).DNA detection
Question 18. Non contacting type bio sensors are ____________
  1.    Radiation type
  2.    Electromagnetic type
  3.    Radiation or electromagnetic type
  4.    None of the mentioned
 Discuss Question
Answer: Option C. -> Radiation or electromagnetic type
Answer: (c).Radiation or electromagnetic type
Question 19. BAW stands for __________________
  1.    Bulk acoustic wave
  2.    Barrier acoustic wave
  3.    Barrier avoiding wave
  4.    Bulk activated wave
 Discuss Question
Answer: Option A. -> Bulk acoustic wave
Answer: (a).Bulk acoustic wave
Question 20. Changes in resonant frequency of QCM is proportional to _____________
  1.    Mass accumulated in crystal
  2.    Crystal used
  3.    Time of usage
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Mass accumulated in crystal
Answer: (a).Mass accumulated in crystal

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