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MCQs

Total Questions : 152 | Page 14 of 16 pages
Question 131. Sawtooth pulses enter into a reversible counter.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 132. Number of pulses is related to frequency.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 133. Basic building blocks of digital multimeter are _________
  1.    oscillator, amplifier
  2.    diode, op amp
  3.    rectifier, schmitt trigger
  4.    A/D, attenuator, counter
 Discuss Question
Answer: Option D. -> A/D, attenuator, counter
Answer: (d).A/D, attenuator, counter
Question 134. Resistance is measured using _________
  1.    constant current source
  2.    constant voltage source
  3.    variable current source
  4.    variable voltage source
 Discuss Question
Answer: Option A. -> constant current source
Answer: (a).constant current source
Question 135. Q factor is also defined as the ratio of _______
  1.    resistance to reactance
  2.    reactance to resistance
  3.    power to voltage
  4.    current to power
 Discuss Question
Answer: Option B. -> reactance to resistance
Answer: (b).reactance to resistance
Question 136. Q factor is called __________
  1.    Quality factor
  2.    Quantity factor
  3.    Queen factor
  4.    Quarter factor
 Discuss Question
Answer: Option A. -> Quality factor
Answer: (a).Quality factor
Question 137. A.C. voltages are measured using _________
  1.    oscillators and op amps
  2.    rectifiers and filters
  3.    resistor and capacitor
  4.    inductor and resistor
 Discuss Question
Answer: Option B. -> rectifiers and filters
Answer: (b).rectifiers and filters
Question 138. What is a Q meter?
  1.    quality meter
  2.    quantity meter
  3.    instrument
  4.    detector
 Discuss Question
Answer: Option C. -> instrument
Answer: (c).instrument
Question 139. Q meter works on the principle of _______
  1.    barkhausen criterion
  2.    piezoelectric effect
  3.    parallel resonance
  4.    series resonance
 Discuss Question
Answer: Option D. -> series resonance
Answer: (d).series resonance
Question 140. What is the relation between Q factor and voltage?
  1.    Q = \(\frac{1}{E}\)
  2.    Q = \(\frac{X_L}{R}=\frac{X_C}{R}=\frac{E_C}{E}\)
  3.    Q = E
  4.    Q = \(\frac{R}{X_L}=\frac{R}{X_C}=\frac{E}{E_C}\)
 Discuss Question
Answer: Option B. -> Q = \(\frac{X_L}{R}=\frac{X_C}{R}=\frac{E_C}{E}\)
Answer: (b).Q = \(\frac{X_L}{R}=\frac{X_C}{R}=\frac{E_C}{E}\)

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