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  • Question

  • Match the following:

    List I List II
    A. D Layer 1. 110 km
    B. E layer 2. 10 km
    C. F layer 3. 60 km
    D. Troposphere 4. 350 km


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

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

    • More questions

    • 1. Soft iron is suitable for making temporary magnets.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. Hysteresis curve is associated with motion of domain walls.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. Slotted line can be used for measurement of high frequencies

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. A line of length slightly less than and short circuited at far end behaves as

    • Options
    • A. inductance L
    • B. capacitance C
    • C. L and C in series
    • D. L and C in parallel
      • Discuss
    • 5. At 0 K, silicon and germanium behave like monoatomic crystals.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. Assertion (A): For a solenoid having N turns, .

      Reason (R): For all magnetic materials, B increases linearly with I.


    • Options
    • A. Both A and R are true and R is correct explanation of A
    • B. Both A and R are true but R is not correct explanation of A
    • C. A is true but R is false
    • D. A is false but R is true
      • Discuss
    • 7. A ring counter with 5 flip flops will have

    • Options
    • A. 5 states
    • B. 10 states
    • C. 32 states
    • D. infinite states
      • Discuss
    • 8. A telephone exchange has 9000 subscribers. If the number of calls originating at peak time is 10, 000 in one hour, the calling rate is

    • Options
    • A. 0.9
    • B. 10/9
    • C. 0.81
    • D. 0.1
      • Discuss
    • 9. If air pressure in a rectangular waveguide is increased the maximum power handling capacity

    • Options
    • A. is decreased
    • B. is increased
    • C. remains the same
    • D. may increase or decrease depending on pressure
      • Discuss
    • 10. In directional coupler of the given figure, the terms |S14| and |S23| of scattering matrix are nearly

    • Options
    • A. 1 each
    • B. 0.5 each
    • C. 0.1 each
    • D. 1 and 0.5 respectively
      • Discuss

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