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MCQs

Total Questions : 124 | Page 12 of 13 pages
Question 111. CMRR is more in __________
  1.    Single ended amplifier
  2.    Differential amplifier
  3.    Inverting operational amplifier
  4.    Chopper amplifier
 Discuss Question
Answer: Option B. -> Differential amplifier
Question 112. If the current gain of the amplifier is X, its voltage gain is Y, then its power gain will be
  1.    X/Y
  2.    X*Y
  3.    X+Y
  4.    X-Y
 Discuss Question
Answer: Option B. -> X*Y
Question 113. The principle of operation of variable resistance transducer is
  1.    Deformation leads to change in resistance
  2.    Displacement of a contact slider on a resistance
  3.    Coupling of two coils changes with displacement
  4.    Movement of magnetic field produces variation in resistance of material
 Discuss Question
Answer: Option B. -> Displacement of a contact slider on a resistance
Question 114. Resistively generated inference arises through incorrect __________________.
  1.    Grounding
  2.    Current density at the electrodes
  3.    Supply voltage
  4.    Input impedance
 Discuss Question
Answer: Option A. -> Grounding
Question 115. S1: Transducer is a device which converts physical into electrical quantityS2: Transducer is also called as sensor.
  1.    S1 is true & S2 is false
  2.    S2 is true & S1 is false
  3.    Both S1 & S2 are true
  4.    Both S1 & S2 are false
 Discuss Question
Answer: Option B. -> S2 is true & S1 is false
Question 116. An ammeter is connected in ___________ with the circuit element whose current we wish to measure
  1.    Series
  2.    Parallel
  3.    Series or parallel
  4.    None of the above
 Discuss Question
Answer: Option A. -> Series
Question 117. If a multimeter has a sensitivity of 1000 Ω per volt and reads 50 V full scale, its internal resistance is ___________
  1.    20 kΩ
  2.    50 kΩ
  3.    10 kΩ
  4.    None of the above
 Discuss Question
Answer: Option B. -> 50 kΩ
Question 118. Piezo-electric transducers are
  1.    Passive transducers
  2.    Inverse transducers
  3.    Digital transducers
  4.    Pulse transducers
 Discuss Question
Answer: Option B. -> Inverse transducers
Question 119. A VTVM has ___________ input resistance than that of a multimeter
  1.    More
  2.    Less
  3.    Same
  4.    None of the above
 Discuss Question
Answer: Option A. -> More
Question 120. Photo conductive cell consists of a thin film of
  1.    Quartz
  2.    Lithium sulphate
  3.    Barium titanate
  4.    Selenium
 Discuss Question
Answer: Option D. -> Selenium

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