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MCQs

Total Questions : 109 | Page 8 of 11 pages
Question 71. How are the inter-capacitance errors minimized?
  1.    by separating the plates of the capacitance
  2.    by using earthing
  3.    by reducing the area of cross section of the capacitors
  4.    by increasing the distance between the capacitor plates
 Discuss Question
Answer: Option B. -> by using earthing
Answer: (b).by using earthing
Question 72. How to minimize the effect of earth capacitance?
  1.    by increasing the supply voltage
  2.    by using a series resistance
  3.    by using a Wagner ground connection
  4.    by using an inductor across the circuit
 Discuss Question
Answer: Option C. -> by using a Wagner ground connection
Answer: (c).by using a Wagner ground connection
Question 73. What is the effect of breakdown of high voltage capacitor?
  1.    No effect
  2.    voltage drop across the circuit reduces
  3.    circuit components rupture
  4.    a high voltage appears across the branches
 Discuss Question
Answer: Option D. -> a high voltage appears across the branches
Answer: (d).a high voltage appears across the branches
Question 74. What is the dependence of frequency on the balance equation?
  1.    independent
  2.    varies by a factor of 2
  3.    depends on the supply magnitude
  4.    depends on the detector used
 Discuss Question
Answer: Option A. -> independent
Answer: (a).independent
Question 75. Maxwell inductance capacitance bridge can be used for _________
  1.    measurement of inductance
  2.    measurement of capacitance and inductance
  3.    measurement of resistance
  4.    measurement of voltage and current
 Discuss Question
Answer: Option A. -> measurement of inductance
Answer: (a).measurement of inductance
Question 76. Balance equation for computing the value of the unknown inductance is?
  1.    Lₓ = R₂ R₃
  2.    Lₓ = R₂ C₁
  3.    Lₓ = R₂ R₃ C₁
  4.    Lₓ = R₃ C₁
 Discuss Question
Answer: Option C. -> Lₓ = R₂ R₃ C₁
Answer: (c).Lₓ = R₂ R₃ C₁
Question 77. Quality factor of the circuit is given by _________
  1.    Q = ωC₁
  2.    Q = ωR₁
  3.    Q = ω
  4.    Q = ωR₁ C₁
 Discuss Question
Answer: Option D. -> Q = ωR₁ C₁
Answer: (d).Q = ωR₁ C₁
Question 78. Balance equation for computing the unknown resistance is?
  1.    Rₓ = \(\frac{R_2}{R_1}\)
  2.    Rₓ = \(\frac{R_2 R_3}{R_1}\)
  3.    Rₓ = \(\frac{R_3}{R_1}\)
  4.    Rₓ = \(\frac{1}{R_1}\)
 Discuss Question
Answer: Option B. -> Rₓ = \(\frac{R_2 R_3}{R_1}\)
Answer: (b).Rₓ = \(\frac{R_2 R_3}{R_1}\)
Question 79. Standard inductor requires no shielding.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 80. At high Q values, the angular balance condition is _________
  1.    satisfied
  2.    not satisfied
  3.    independent of Q factor
  4.    partially affected
 Discuss Question
Answer: Option B. -> not satisfied
Answer: (b).not satisfied

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