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MCQs

Total Questions : 124 | Page 6 of 13 pages
Question 51. Silver chloride electrode is used as a reference electrode due to its
  1.    Large half cell potential
  2.    Stable half cell potential
  3.    Stable resting potential
  4.    Stable action potential
 Discuss Question
Answer: Option B. -> Stable half cell potential
Question 52. In X-Y recorders, the self balancing potentiometers plot emf as a function of
  1.    Another emf
  2.    Frequency
  3.    Time
  4.    Pressure
 Discuss Question
Answer: Option A. -> Another emf
Question 53. When an ammeter is inserted in the circuit, the circuit current will ___________.
  1.    Increase
  2.    Decrease
  3.    Remain the same
  4.    None of the above
 Discuss Question
Answer: Option B. -> Decrease
Question 54. In strip chart recorders, the self balancing potentiometers plot emf as a function of
  1.    Another emf
  2.    Frequency
  3.    Time
  4.    Pressure
 Discuss Question
Answer: Option C. -> Time
Question 55. Stress and strain curves are plotted using
  1.    Magnetic tape recording
  2.    X-Y recording
  3.    Galvanometric
  4.    PMMC writing systems
 Discuss Question
Answer: Option B. -> X-Y recording
Question 56. A recorder is said to have good frequency response when the sensitivity of the system is _________ for all frequencies present in the signal.
  1.    Unity
  2.    Zero
  3.    Infinity
  4.    Constant
 Discuss Question
Answer: Option D. -> Constant
Question 57. An inverse transducer is a device which converts
  1.    An electrical quantity into a non electrical quantity
  2.    Electrical quantity into mechanical quantity
  3.    Electrical energy into thermal energy
  4.    Electrical energy into light energy
 Discuss Question
Answer: Option A. -> An electrical quantity into a non electrical quantity
Question 58. The materil used to coat inside the face of CRT is ___________.
  1.    Carbon
  2.    Sulphur
  3.    Silicon
  4.    Phosphorous
 Discuss Question
Answer: Option D. -> Phosphorous
Question 59. Feedback in an amplifier always helps in
  1.    Increasing its input impedance
  2.    Increasing its gain
  3.    Controlling its output
  4.    Stabilizes its gain
 Discuss Question
Answer: Option C. -> Controlling its output
Question 60. The capacitance microphone is used for the detection of
  1.    Heart rate
  2.    Blood flow
  3.    Heart sound
  4.    Foot pressure
 Discuss Question
Answer: Option C. -> Heart sound

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