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Instrument Characteristics MCQs

Practice Instrument Characteristics MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 1
Measurements & InstrumentationInstrument Characteristics

The range of an instrument refers to?

  • AThe interval between minimum and maximum measurable input values
  • BOnly the maximum value
  • COnly the minimum value
  • DThe number of internal components
Report an error
Correct Answer: A. The interval between minimum and maximum measurable input values
Explanation: Range specifies the limits over which the instrument is intended to measure.
Reference: Standard measurements and instrumentation: instrument characteristics
Question 2
Measurements & InstrumentationInstrument Characteristics

Sensitivity of an instrument is generally defined as?

  • AChange in output divided by corresponding change in input
  • BInput divided by time only
  • CMaximum input minus minimum input
  • DTrue value minus measured value
Report an error
Correct Answer: A. Change in output divided by corresponding change in input
Explanation: Sensitivity is the ratio of change in instrument output to the corresponding change in input.
Reference: Standard measurements and instrumentation: instrument characteristics
Question 4
Measurements & InstrumentationInstrument Characteristics

Hysteresis in an instrument means that, for the same input, the output may depend on?

  • AWhether the input was approached from increasing or decreasing direction
  • BOnly the power-supply frequency
  • COnly the display color
  • DThe number of terminals
Report an error
Correct Answer: A. Whether the input was approached from increasing or decreasing direction
Explanation: Hysteresis causes different indications for the same input depending on the previous direction of input change.
Reference: Standard measurements and instrumentation: instrument characteristics
Question 5
Measurements & InstrumentationInstrument Characteristics

Instrument drift refers to?

  • AA gradual change in indication with time when the measured quantity is unchanged
  • BAn instantaneous perfect response
  • CA deliberate range selection
  • DA fixed unit conversion
Report an error
Correct Answer: A. A gradual change in indication with time when the measured quantity is unchanged
Explanation: Drift is an undesired gradual change in instrument output with time despite an unchanged input.
Reference: Standard measurements and instrumentation: instrument characteristics