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MCQs

Total Questions : 80 | Page 8 of 8 pages
Question 71. Heater power in thick film hybrid technology is __________
  1.    5KW
  2.    50 MW
  3.    500 MW
  4.    500 mW
 Discuss Question
Answer: Option D. -> 500 mW
Answer: (d).500 mW
Question 72. Chemiresistor sensors are used for test gases in _______________
  1.    Solid form
  2.    Liquid form
  3.    Vapour form
  4.    All of the mentioned
 Discuss Question
Answer: Option C. -> Vapour form
Answer: (c).Vapour form
Question 73. Mass sensors are a combination of SAW.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 74. Photo ionization and flame ionization technique are most favoured in detection of ____________
  1.    Organic gases
  2.    Inorganic gases
  3.    Vapours
  4.    All of the mentioned
 Discuss Question
Answer: Option A. -> Organic gases
Answer: (a).Organic gases
Question 75. IR sensors are used in detection of _______________
  1.    Organic gases
  2.    Inorganic gases
  3.    Vapours
  4.    All of the mentioned
 Discuss Question
Answer: Option D. -> All of the mentioned
Answer: (d).All of the mentioned
Question 76. Which of the following is correct for non-thermal source?
  1.    Need external supply
  2.    Doesn’t need an external source
  3.    Can act as thermal source
  4.    All of the mentioned
 Discuss Question
Answer: Option B. -> Doesn’t need an external source
Answer: (b).Doesn’t need an external source
Question 77. LED and laser emit radiation in ___________
  1.    Narrow range
  2.    Wide range
  3.    Medium bandwidth
  4.    Unpredictable bandwidth
 Discuss Question
Answer: Option A. -> Narrow range
Answer: (a).Narrow range
Question 78. Sensitivity can represent in terms of the lumen.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 79. Sensing element in IR thermal detector will be ______________
  1.    Thermo couple
  2.    Thermo pile
  3.    Bolometer
  4.    All of the mentioned
 Discuss Question
Answer: Option D. -> All of the mentioned
Answer: (d).All of the mentioned
Question 80. Which of the following is the correct relationship for sensitivity?
  1.    Volt/watt
  2.    Watt/volts
  3.    Volt/amp
  4.    Volts
 Discuss Question
Answer: Option A. -> Volt/watt
Answer: (a).Volt/watt

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