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

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Q7.

Moving coil parameter magnetic instruments can be used for the measurement of

  • A. AC and DC
  • B. AC only
  • C. DC only
  • D. half wave rectified DC
    ✍ Discuss    
Q8.

Horizontal mounted moving iron instruments employ

  • A. eddy current damping
  • B. air friction damping
  • C. fluid friction damping
  • D. electromagnetic damping
    ✍ Discuss    
Q9.

The following is not essential for the working of an indicating instrument

  • A. deflecting torque
  • B. braking torque
  • C. damping torque
  • D. controlling torque
    ✍ Discuss    
Q10.

A moving coil galvanometer can be used as a DC ammeter by connecting

  • A. a high resistance in series with the meter
  • B. a high resistance across the meter
  • C. a low resistance across the meter
  • D. a low resistance in series with the meter
    ✍ Discuss    
Q11.

Preferred material for parameter magnetic is

  • A. stainless steel
  • B. alnico
  • C. tungsten steel
  • D. soft iron
    ✍ Discuss    
Q12.

For sensitive galvanometer, the types of support used is

  • A. suspension
  • B. taut suspension
  • C. unipivot suspension
  • D. none of these
    ✍ Discuss    
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