IndiaBIX

Electronics and Communication Engineering - Exam Questions Papers

Exercise : Exam Questions Papers - Exam Paper 14
36.
Consider the following statements:
  1. Taking 2's complement is equivalent to sign change.
  2. In the 2's complement representation the most significant bit (MSB) is zero for a positive number.
  3. In a 4 bit binary representation of a binary number A, A + 1's complement of A = 24.
Which of the above statements are correct?
1 and 2 only
1 and 3 only
2 and 3 only
1, 2 and 3
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
Consider the following statements:
  1. Strictly speaking C supports 1-dimensional arrays only.
  2. An array element may be an array by itself.
  3. Array elements need not occupy contiguous memory locations.
Which of the above statements is/are correct?
1 only
2 only
1 and 2
2 and 3
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
Consider the following circuit using an ideal OP-AMP. The I-V characteristics of the diode is described by the relation where VT = 25mV, I0 = 1mA and V is the voltage across the diode (taken as positive for forward bias). For an input voltage V1 = - 1 V, the output voltage V0 is
0 V
0.1 V
0.7 V
1.1 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
Which of the following statements is true regarding the fundamental mode of the metallic waveguides shown?
Only P has no cutoff- frequency
Only Q has no cutoff- frequency
Only P has no cutoff- frequency
All there have cut-off frequency
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.

Assertion (A): A rectifier with inductor filter is more efficient for high load current.

Reason (R): In rectifier with inductor filter we can use a larger choke to reduce ripple, larger choke will have higher dc resistance which will result in lower dc output voltage for higher load current.

Both A and R are individually true and R is the correct explanation of A
Both A and R are individually true but R is not the correct explanation of A
A is true but R is false
A is false but R is true
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers