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Electronic and Electrical Measurements and Instruments (Electrical Engineering) - MCQs


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Q25.
Dead zone of an instrument is
  • A. the time required by an instrument to warm up initially
  • B. the largest change of input quantity for which there is no output of the instrument
  • C. the time required by an instrument to begin to respond to a change in measurement
  • D. none of the above

    Discuss    
Q26.
Dead time of the instrument is
  • A. the time required by an instrument to begin to response to a change in the measured
  • B. the time required by an instrument to warm up in initially
  • C. the large change of input quantity for which there is no output of the instrument
  • D. none of the above

    Discuss    
Q27.
The efficiency of instrument is defined as the ratio of the measured quantity at full scale to the power taken by the instrument at
  • A. one fourth scale
  • B. half scale
  • C. third fourth scale
  • D. full scale

    Discuss    
Q28.
Dynamic response consists of
  • A. two parts - one steady state and the other transient state response
  • B. transient state response only
  • C. steady state response only
  • D. both steady state and transient frequency responses

    Discuss    
Q29.
In measurement, systems which one of the following are undesirable static characteristics?
  • A. sensitivity and accuracy
  • B. drift static error and dead zone
  • C. reproductibility and nonlinearity
  • D. drift, static error, deadzone and non linearity

    Discuss    
Q30.
The reliability of an instrument refers to
  • A. the measurement of changes due to temperature variation
  • B. the degree to which repeatability continues to remain with specified limits
  • C. the life of an instrument
  • D. the extent to which the characteristics remain linear

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