Electronics and Communication Engineering - Exam Questions Papers

26. 

Which of the following has a major role in implementation of functions calls in C?

A. Processor's registers
B. Data segment
C. The heap
D. System stack

Answer: Option D

Explanation:

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27. 

Effective Q of the equivalent electrical circuit of quartz crystal is of the order of

A. 200
B. 2000
C. 20000
D. 200000

Answer: Option C

Explanation:

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28. 

Two linearly polarized plane waves A and B travelling in free space in the positive x direction meet at a point. Wave A is polarized in the y direction and the wave B is polarized in the z direction. If the two waves are of equal amplitude and are in phase quadrature, the resultant wave will be

A. circularly polarized
B. elliptically polarized
C. linearly polarized
D. vertically polarized

Answer: Option A

Explanation:

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29. 

Consider the following statements regarding an antenna:

  1. It is a transducer
  2. Its performance is essentially frequency sensitive
  3. It is a reciprocal device
  4. With increase in its effective aperture area, width of the radiated beam increases.
Which of the above statements are correct?

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

Answer: Option A

Explanation:

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30. 

The range of memory location in given memory interfacing scheme is

A. 0000H - 07FFH
B. F800H - FFFFH
C. 0000H - 03FFH
D. 0000H - 3FFFH

Answer: Option B

Explanation:

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