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Exam Details

Electronics & Communication Engineering (EC) 2007

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Questions 85
Duration 180 mins
Package Electronics & Communication Engineering (EC) - Previous Year Papers

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Showing all 85 questions in this paper.

Subject distribution

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Topic distribution

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Subtopic distribution

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Difficulty distribution

Easy 85 100%

Question type distribution

Multiple Choices 85 100%

Instructions

Electronics & Communication Engineering (EC) 2007 – Instructions
  • Total number of questions: 85
  • 20 questions carry one mark each
  • 65 questions carry two marks each
  • Negative marking: 1/4 of the marks allotted to the question
  • Use of calculator is allowed
  • This is a proctored examination
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Syllabus

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Sample questions from this paper

Questions are selected across the paper subjects wherever the paper contains that variety.

1
2007 · Unclassified
Electronics & Communication Engineering (EC) 2007
Q.1 – Q.20 carry one mark each.

If E denotes expectation, the variance of a random variable X is given by

A
E[X²] - E²[X]
B
E[X²] + E²[X]
C
E[X²]
D
E²[X]
2
2007 · Unclassified
Electronics & Communication Engineering (EC) 2007

The following plot shows a function y which varies linearly with x. The value of the integral I = ∫ y dx is

A
1.0
B
2.5
C
4.0
D
5.0
3
2007 · Unclassified
Electronics & Communication Engineering (EC) 2007

For |x| ≪ 1, coth(x) can be approximated as

A
x
B
x²
C
1/x
D
1/x²
4
2007 · Unclassified
Electronics & Communication Engineering (EC) 2007

lim (θ→0) (sin(θ/2)/θ) is

A
0.5
B
1
C
2
D
Not defined
5
2007 · Unclassified
Electronics & Communication Engineering (EC) 2007

Which one of the following functions is strictly bounded?

A
1/x²
B
eˣ
C
x²
D
eˣ²
6
2007 · Unclassified
Electronics & Communication Engineering (EC) 2007

For the function ex, the linear approximation around x = 2 is

A
(3 - x)e²
B
1 - x
C
[3 + x/2 - (1 + √2)x]e⁻²
D
x² - 2