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MCQs

Total Questions : 109 | Page 2 of 11 pages
Question 11. Commercial Schering bridge can be used for the measurement of capacitances from _____________
  1.    10pF to 0.1nF
  2.    100pF to 1μF
  3.    50nF to 10mF
  4.    25mF to 5F
 Discuss Question
Answer: Option B. -> 100pF to 1μF
Answer: (b).100pF to 1μF
Question 12. How is the high voltage obtained?
  1.    by using a step up transformer
  2.    by using a high voltage source
  3.    by using a step down transformer
  4.    by using a high current source
 Discuss Question
Answer: Option A. -> by using a step up transformer
Answer: (a).by using a step up transformer
Question 13. The detector used in a high voltage Schering bridge is _________
  1.    tunable circuit
  2.    e.m.f source
  3.    vibration galvanometer
  4.    headphone
 Discuss Question
Answer: Option C. -> vibration galvanometer
Answer: (c).vibration galvanometer
Question 14. A Schering bridge can be used for the ______________
  1.    measuring voltages
  2.    measuring currents
  3.    testing capacitors
  4.    protecting the circuit from temperature rises
 Discuss Question
Answer: Option C. -> testing capacitors
Answer: (c).testing capacitors
Question 15. A Schering bridge can be used for capacitance measurements at low voltages.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 16. Standard inductor provides rated inductance directly.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 17. What is the significance of the balance equation on losses?
  1.    independent of losses in inductance
  2.    independent of losses in capacitance
  3.    independent of losses in resistance
  4.    independent of losses in the circuit
 Discuss Question
Answer: Option A. -> independent of losses in inductance
Answer: (a).independent of losses in inductance
Question 18. What is the significance of capacitors in a Maxwell bridge?
  1.    they are used to block dc
  2.    they are used to block ac
  3.    they are cheap
  4.    they are expensive
 Discuss Question
Answer: Option C. -> they are cheap
Answer: (c).they are cheap
Question 19. Balance equation is dependent on frequency.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 20. The bridge balance equation can be written in _________
  1.    impedance form
  2.    resistance form
  3.    conductance form
  4.    admittance form
 Discuss Question
Answer: Option D. -> admittance form
Answer: (d).admittance form

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