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MCQs

Total Questions : 80 | Page 1 of 8 pages
Question 1. All elements of sonar are driven electrically.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 2. Mosaic regarding sonar is ____________
  1.    Surface of sonar
  2.    Frequency of sound wave
  3.    Pattern of vibrating elements
  4.    Depth of sea to which it is applicable
 Discuss Question
Answer: Option C. -> Pattern of vibrating elements
Answer: (c).Pattern of vibrating elements
Question 3. Which of the following can be used in sonar?
  1.    ADP
  2.    Rescelle salt
  3.    ADP and Roscelle salt
  4.    ADP and Roscelle salt in sealed condition
 Discuss Question
Answer: Option D. -> ADP and Roscelle salt in sealed condition
Answer: (d).ADP and Roscelle salt in sealed condition
Question 4. Piezo electric materials are well cut for _____________
  1.    Good dimension
  2.    Good coupling coefficient
  3.    Compact shape of device
  4.    Increasing frequency
 Discuss Question
Answer: Option B. -> Good coupling coefficient
Answer: (b).Good coupling coefficient
Question 5. Magnetostriction transmitter uses _______________
  1.    Electrostrictive phenomena
  2.    Horizontal vibration of nickel tube
  3.    Longitudinal vibration of nickel tube
  4.    All of the mentioned
 Discuss Question
Answer: Option C. -> Longitudinal vibration of nickel tube
Answer: (c).Longitudinal vibration of nickel tube
Question 6. Which of the following change electrical conductivity on the absorption of a gas molecule?
  1.    Tin
  2.    Zinc
  3.    Nickel
  4.    All of the mentioned
 Discuss Question
Answer: Option D. -> All of the mentioned
Answer: (d).All of the mentioned
Question 7. Water purity is tested by ____________
  1.    Water activity sensor
  2.    pH meter
  3.    SAW sensor
  4.    BAW sensor
 Discuss Question
Answer: Option B. -> pH meter
Answer: (b).pH meter
Question 8. Polypropylene is a/an _____________
  1.    Inorganic sensor
  2.    Organic sensor
  3.    Metal sensor
  4.    Gaseous sensor
 Discuss Question
Answer: Option B. -> Organic sensor
Answer: (b).Organic sensor
Question 9. ISE stands for __________________
  1.    Ion sticking electrode
  2.    Ion selective electrode
  3.    Inactive segment electrode
  4.    Inorganic substance electrode
 Discuss Question
Answer: Option B. -> Ion selective electrode
Answer: (b).Ion selective electrode
Question 10. Glass electrode is an ion selective electrode.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True

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