counter code

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


These are four options provided for the answers of the question only one option is right answer. You have to click any of the option to check your answer. You can also directly see the answer from the answer link below. if you want to see explaination of the answer you can click discuss link.

Q1.
The scale of an electrodynamometer usually reads the
  • A. average value of the AC
  • B. mean value of the AC
  • C. effective value of the AC
  • D. squared value of the AC

    Discuss    
Q2.
The disadvantage of PMMC instrument is
  • A. high power consumption
  • B. high cost relative to moving iron instruments
  • C. low torque / weight ratio
  • D. absence of effective and efficient current damping

    Discuss    
Q3.
Moving iron and PMMC instruments can be distinguished from each other by looking at
  • A. pointer
  • B. terminal size
  • C. scale
  • D. scale range

    Discuss    
Q4.
The term artificial again instrument is associated with
  • A. springs
  • B. parameter magnets
  • C. controlling torques
  • D. damping

    Discuss    
Q5.
In eddy current damping system, the disc employed should be of
  • A. conducting and magnetic material
  • B. conducting but non magnetic material
  • C. magnetic but non conducting material
  • D. non conducting and non magnetic material

    Discuss    
Q6.
An advantage of PMMC instrument is that is
  • A. is free from friction error
  • B. has high torque to weight ratio of moving parts
  • C. has low torque to weight ratio
  • D. can be used on both AC and DC

    Discuss