Electronics and Communication Engineering - Exam Questions Papers

46. 

A compensated wattmeter has its reading corrected for error due to which one of the following parameters?

A. Frequency
B. Friction
C. Power consumed in current coil
D. Power consumed in pressure coil

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

47. 

Personal computer cannot be used for which one of the following?

A. Game playing
B. Weather forecasting
C. Office Automation
D. Home computing

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

48. 

Which of the following output configurations are available in a TTL gate?

  1. Open collector output
  2. Totem pole output
  3. Tristate output
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:

No answer description available for this question. Let us discuss.

49. 

Which of the following be true for a CE transistor amplifier if the emitter resistor value is made equal to zero?

  1. Its gain will increase
  2. Its stability will increase
  3. Its gain will decrease
  4. Its stability will decrease
Select the correct answer from the codes given below

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

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

50. 

The feedback control system shown in figure is stable.

A. for all K ≥ 0
B. only if K ≥ 1
C. only if 0 ≤ K < 1
D. only if -1 ≤ K < 1

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

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