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MCQs

Total Questions : 374 | Page 9 of 38 pages
Question 81. The spring material used in a spring control device should have the following property.
  1.    Should non magnetic
  2.    Most be of low temperature co-efficient
  3.    All of the listed here
  4.    Should have low specific resistance
 Discuss Question
Answer: Option C. -> All of the listed here
Question 82. Resistances can be measured with the help of
  1.    Ammeters
  2.    Voltmeters
  3.    Wattmeters
  4.    Ohmmeters and resistance bridges
 Discuss Question
Answer: Option D. -> Ohmmeters and resistance bridges
Question 83. _______ instruments are those which measure the total quantity of the electricity delivered in a particular time.
  1.    Recording
  2.    Integrating
  3.    Absolute
  4.    Indicating
 Discuss Question
Answer: Option B. -> Integrating
Question 84. Which of the following essential featuresis possessed by an indicating instrument?
  1.    Damping device
  2.    All of the listed here
  3.    Deflecting device
  4.    Controlling device
 Discuss Question
Answer: Option B. -> All of the listed here
Question 85. The disc of an instrument using eddy current damping should be of
  1.    Conducting and magnetic material
  2.    Non conducting and magnetic material
  3.    Conducting and non magnetic material
  4.    None of the listed here
 Discuss Question
Answer: Option C. -> Conducting and non magnetic material
Question 86. The multiplier and the meter coil in a voltmeter are in
  1.    Series
  2.    Parallel
  3.    None of the listed here
  4.    Series-parallel
 Discuss Question
Answer: Option A. -> Series
Question 87. A potentiometer may be used for
  1.    Calibration of ammeter
  2.    Measurement of current
  3.    All of the listed here
  4.    Measurrment of resistance
 Discuss Question
Answer: Option C. -> All of the listed here
Question 88. The scale of a rectifier instrument is
  1.    Linear
  2.    Either linear or non linear
  3.    Non-linear
  4.    None of the listed here
 Discuss Question
Answer: Option A. -> Linear
Question 89. In a portable instrument , the controlling torque is provided by
  1.    Gravity
  2.    Spring
  3.    All of the listed here
  4.    Eddy currents
 Discuss Question
Answer: Option B. -> Spring
Question 90. A moving iron instrument can be used for
  1.    AC only
  2.    Both DC& AC
  3.    None of the listed here
  4.    DC only
 Discuss Question
Answer: Option B. -> Both DC& AC

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