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General Knowledge

MEASUREMENTS MCQs

Total Questions : 61 | Page 6 of 7 pages
Question 51. . A sample-and-hold circuit consists of _________.
  1.    an op-amp, an analog switch, and an inductor
  2.    an op-amp, an analog switch, and a capacitor
  3.    two op-amps, an analog switch, and a variable resistor
  4.    two op-amps, an analog switch, and a capacitor
 Discuss Question
Answer: Option D. -> two op-amps, an analog switch, and a capacitor
Question 52. . A(n) _____ can be rapidly switched on and off remotely by another controlling circuit.
  1.    triac
  2.    diac
  3.    RTD
  4.    zero-voltage switch
 Discuss Question
Answer: Option A. -> triac
Question 53. . RTDs, strain gauges, and pressure transducers are _____ devices.
  1.    resistive
  2.    inductive
  3.    capacitive
  4.    solid-state
 Discuss Question
Answer: Option A. -> resistive
Question 54. . A thermistor's temperature characteristic is essentially _________.
  1.    linear
  2.    logarithmic
  3.    nonlinear
  4.    geometric
 Discuss Question
Answer: Option B. -> logarithmic
Question 55. . The ________ are two types of acceleration transducers.
  1.    LVDT and the piezoelectric
  2.    magnetic and the piezoelectric
  3.    RTD and the magnetic
  4.    LVDT and the RTD
 Discuss Question
Answer: Option A. -> LVDT and the piezoelectric
Question 56. . The three types of relative pressure measurement are ________.
  1.    exact, reflective, and referenced
  2.    absolute, exact, and differential
  3.    absolute, gauge, and reflective
  4.    absolute, gauge, and differential
 Discuss Question
Answer: Option D. -> absolute, gauge, and differential
Question 57. . The voltage produced by a thermocouple is called the _________.
  1.    hot junction voltage
  2.    cold junction voltage
  3.    Seebeck voltage
  4.    Hooke voltage
 Discuss Question
Answer: Option C. -> Seebeck voltage
Question 58. . The two most common types of analog-to-digital converters discussed in this chapter were the ______.
  1.    linear converter and the analog converter
  2.    linear converter and the successive approximation converter
  3.    flash converter and the analog converter
  4.    flash converter and the successive approximation converter
 Discuss Question
Answer: Option D. -> flash converter and the successive approximation converter
Question 59. . A triac is different from an SCR because ________.
  1.    it can handle large current flows
  2.    it can handle large voltages
  3.    the gate signal can turn off the current flow
  4.    it allows current flow in both directions
 Discuss Question
Answer: Option D. -> it allows current flow in both directions
Question 60. . The ______ is composed of a transformer with a movable core, a primary, and two secondaries.
  1.    LVDT
  2.    strain gauge
  3.    accelerometer
  4.    transformer displacement sensor
 Discuss Question
Answer: Option A. -> LVDT

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