logo

CuriousTab

CuriousTab

Discussion


Home Electronics and Communication Engineering Matching Questions See What Others Are Saying!
  • Question
  • Match the following:

    List I (Instrument) List II (Parameters)
    A. Moving coil galvanometer 1. High inertia, soft spring control
    B. Ballistic galvanometer 2. No control, high damping
    C. Vibration galvanometer 3. Soft spring control, critical damping
    D. Moving coil flux meter 4. Low inertia, tuned spring control


  • Options
  • A. A-4, B-2, C-3, D-1
  • B. A-1, B-3, C-2, D-4
  • C. A-2, B-1, C-4, D-3
  • D. A-3, B-1, C-4, D-2

  • Correct Answer
  • A-3, B-1, C-4, D-2 


  • More questions

    • 1. A 3 phase induction motor is controlled by voltage and frequency control such that the ratio V/f is constant. At 50 Hz, the starting torque is 100 N-m. At 25 Hz, the starting torque

    • Options
    • A. will be less than 100 N-m
    • B. will be more than 100 N-m
    • C. may be more or less than 100 N-m depending on motor parameters
    • D. very small
    • Discuss
    • 2. The phenomenon of overlap in converter operation due to

    • Options
    • A. source resistance
    • B. source inductance
    • C. both source resistance and source inductance
    • D. high value of firing angle
    • Discuss
    • 3. As the frequency is increased, the charging MVAR in a cable

    • Options
    • A. decreases
    • B. increases
    • C. remain the same
    • D. decreases or remains the scheme
    • Discuss
    • 4. A step down cycloconverter has an input frequency f. If it uses natural commutation, the output frequency

    • Options
    • A. must be a sub-multiple of input frequency
    • B. can be any frequency
    • C. must be an even sub-multiple of input frequency
    • D. must be an odd sub-multiple of input frequency
    • Discuss
    • 5. If , the terms in f(t) will have

    • Options
    • A. e-t and e-2t
    • B. et and e2t
    • C. te-t and te-2t
    • D. none of the above
    • Discuss
    • 6. Out of modes TE20 and TE30 of propagation of electromagnetic engery

    • Options
    • A. both have the same cutoff frequency
    • B. TE20 has lower cut off frequency as compared to TE30
    • C. TE30 has lower cutoff frequency as compared to TE20
    • D. either (a) or (c)
    • Discuss
    • 7. Two function g1(t) and g2(t) with correlation of 6 has average power of 4 and 5 respectively. The power of g1(t) + g2(t) is

    • Options
    • A. 9
    • B. 21
    • C. 3
    • D. 15
    • Discuss
    • 8. An SUS is

    • Options
    • A. exactly similar to SCR but with higher rating
    • B. similar to UJT
    • C. PUT and avalanche diode connected in anti parallel
    • D. SCR and avalanche diode connected in parallel
    • Discuss
    • 9. The static equalisation circuit for thyristors connected in series is

    • Options
    • A. one resistor in series with each thyristor
    • B. one resistor in parallel with each thyristor
    • C. one resistor and one capacitor in parallel with each thyristor
    • D. none of the above
    • Discuss
    • 10. The cut in voltages for germanium and silicon diodes respectively as

    • Options
    • A. 0.3 V and 0.7 V
    • B. 0.7 V and 0.3 V
    • C. 0.6 V and 0.9 V
    • D. 0.5 V and 0.7 V
    • Discuss


    Comments

    There are no comments.

Enter a new Comment