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Exam Details

Electrical Engineering (EE) 2007

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Questions 85
Duration 180 mins
Package Electrical Engineering (EE) - 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

Electrical Engineering (EE) 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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  • After three warnings, the examination window will close automatically

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
Electrical Engineering (EE) 2007
Q.1 – Q.20 carry one mark each.

The common emitter forward current gain of the transistor shown is βe = 100.

Question diagram

The transistor is operating in
A
Saturation region
B
Cutoff region
C
Reverse active region
D
Forward active region
2
2007 · Unclassified
Electrical Engineering (EE) 2007

The three-terminal linear voltage regulator is connected to a 10 Ω load resistor as shown in the figure. If Vin is 10 V, what is the power dissipated in the transistor?

Question diagram

A
0.6 W
B
2.4 W
C
4.2 W
D
5.4 W
3
2007 · Unclassified
Electrical Engineering (EE) 2007

Consider the transformer connections in a part of a power system shown in the figure. The nature of transformer connections and phase shifts are indicated for all but one transformer. Which of the following connections, and the corresponding phase shift θ, should be used for the transformer between A and B?

Question diagram

A
Star – Star (θ = 0°)
B
Star – Delta (θ = −30°)
C
Delta – Star (θ = 30°)
D
Star – Zigzag (θ = 30°)
4
2007 · Unclassified
Electrical Engineering (EE) 2007

The incremental cost curves in Rs/MWhr for two generators supplying a common load of 700 MW are shown in the figures. The maximum and minimum generation limits are also indicated. The optimum generation schedule is:

Question diagram

A
Generator A: 400 MW, Generator B: 300 MW
B
Generator A: 350 MW, Generator B: 350 MW
C
Generator A: 450 MW, Generator B: 250 MW
D
Generator A: 425 MW, Generator B: 275 MW
5
2007 · Unclassified
Electrical Engineering (EE) 2007

Two regional systems, each having several synchronous generators and loads are interconnected by an AC line and a HVDC link as shown in the figure. Which of the following statements is true in the steady state

Question diagram

A
Both regions need not have the same frequency
B
The total power flow between the regions (Pₐc + Pₕvdc) can be changed by controlling the HVDC converters alone
C
The power sharing between the AC line and the HVDC link can be changed by controlling the HVDC converters alone
D
The direction of power flow in the HVDC link (Pₕvdc) cannot be reversed
6
2007 · Unclassified
Electrical Engineering (EE) 2007

Consider a bundled conductor of an overhead line, consisting of three identical sub-conductors placed at the corners of an equilateral triangle as shown in the figure. If we neglect the charges on the other phase conductors and ground, and assume that spacing between sub-conductors is much larger than their radius, the maximum electric field intensity is experienced at

Question diagram

A
Point X
B
Point Y
C
Point Z
D
Point W