Electronics and Communication Engineering - Exam Questions Papers

6. 

What is an advantage of an electronic voltmeter over a non-electronic voltmeter?

A. Low power consumption
B. Low input impedance
C. The ability to measure wide ranges of voltages and resistance
D. Large portability

Answer: Option A

Explanation:

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7. 

Which of the following statements is/are true for the diamond structure?

  1. Coordination number is four.
  2. Packing fraction is 0.34
  3. Copper crystallizes into diamond structure
  4. Lattice is FCC.

A. 1 only
B. 1, 2 and 4
C. 2 and 3 only
D. 2, 3 and 4

Answer: Option B

Explanation:

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8. 

Assertion (A): There are no convergence issues with the discrete-time Fourier series in general.

Reason (R): A discrete-time signal is always obtained by sampling a continuous-time signal.

A. Both A and R are individually true and R is the correct explanation of A
B. Both A and R are individually true but R is not the correct explanation of A
C. A is true but R is false
D. A is false but R is true

Answer: Option D

Explanation:

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9. 

Which is the dominant mode in rectangular waveguides?

A. TE10
B. TE11
C. TE01
D. TM11

Answer: Option A

Explanation:

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10. 

Which of the following are the memory performance parameters?

  1. Access time and latency
  2. Block size and Block access time
  3. Cycle time and Bandwidth
Select the correct answer from the codes given below:

A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2 and 3

Answer: Option D

Explanation:

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