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Electrical Engineering 2007
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85
Duration
180 mins
Package
ESE & GATE EE - Previous Year Papers
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85questions
Medium
56
65.9%
Hard
28
32.9%
Easy
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1.2%
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85questions
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2007 · Unclassified
Electrical Engineering 2007
The common emitter forward current gain of the transistor shown is . The transistor is operating in
2007 · Unclassified
Electrical Engineering 2007
The three-terminal linear voltage regulator is connected to a load resistor as shown in figure. If Vin is 10V, what is the power dissipated in the transistor?
2007 · Unclassified
Electrical Engineering 2007
Consider the transformer connections is 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 , should be used for the transformer between A and B?
A
Star – Star
B
Delta – Star
C
Star – Zigzag
D
Star – Delta (
2007 · Unclassified
Electrical Engineering 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:
2007 · Unclassified
Electrical Engineering 2007
Two regional systems, each having several synchronous generators and loads are interconnected by an ac line and HVDC link as shown in the figure. Which of the following statements is true in the steady state:
A
Both regions need not have the same frequency
B
The total power flow between the regions can be changed by controlling the HVDC converters alone
C
The power sharing between the ac line and the HDVC link can be changed by controlling the HVDC converters alone
D
The direction of power flow in the link cannot be reversed.
2007 · Unclassified
Electrical Engineering 2007
Consider a bundle 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-conductor is much larger that their radius, the maximum electric field intensity is experienced at