Feedback Transducer System(Instrumentation Transducers ) Questions and Answers

Question 1. Beam balance is used for _________________
  1.    Weight comparison
  2.    Pressure comparison
  3.    Density comparison
  4.    None of the mentioned
Explanation:-
Answer: Option A. -> Weight comparison
Answer: (a).Weight comparison
Question 2. Null position is attained when _______________
  1.    Two weight becomes equal
  2.    One becomes double of other
  3.    One becomes zero
  4.    No null position attained
Explanation:-
Answer: Option A. -> Two weight becomes equal
Answer: (a).Two weight becomes equal
Question 3. In electromagnetic balance system, horizontality is detected by ____________
  1.    Photo electric cell
  2.    Direct vision
  3.    Galvanometer
  4.    Detector circuit
Explanation:-
Answer: Option A. -> Photo electric cell
Answer: (a).Photo electric cell
Question 4. Which of the following application in the balance system a PMMC device used for?
  1.    Restoring balance system
  2.    Oscillatory action
  3.    Detection of horizontality
  4.    None of the mentioned
Explanation:-
Answer: Option A. -> Restoring balance system
Answer: (a).Restoring balance system
Question 5. In balance system gain of amplifier is _____________
  1.    Very low
  2.    Very high
  3.    Unity
  4.    Selected according to weight
Explanation:-
Answer: Option B. -> Very high
Answer: (b).Very high
Question 6. Which of the following are not suitable with electromagnetic flow meter?
  1.    Steady flowing liquid
  2.    Slurries
  3.    Liquid containing particulate matter
  4.    None of the mentioned
Explanation:-
Answer: Option D. -> None of the mentioned
Answer: (d).None of the mentioned
Question 7. Output signal of electromagnetic flow meter inversely proportional to _________________
  1.    Magnetic flux density
  2.    Diameter of tube
  3.    Velocity of flow
  4.    None of the mentioned
Explanation:-
Answer: Option D. -> None of the mentioned
Answer: (d).None of the mentioned
Question 8. Feedback system draws current from the main circuit.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
Explanation:-
Answer: Option B. -> False
Answer: (b).False
Question 9. Feedback system in electromagnetic flow meter is applied to ______________
  1.    Overcome fluctuation of B
  2.    Reduce measuring time
  3.    Reduce excitation supply
  4.    None of the mentioned
Explanation:-
Answer: Option A. -> Overcome fluctuation of B
Answer: (a).Overcome fluctuation of B
Question 10. Frequency of AC electromagnets are independent of magnetic flux density.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
Explanation:-
Answer: Option B. -> False
Answer: (b).False
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