GATE EE discipline:electrical-electronics-and-instrumentation PYQs & Answers — Page 35

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Questions 341–350 of 715. Imported answers require independent review unless marked reviewed.

Topic practice 715 questionsPage 35 of 72

If the input

and output

of a system are related as

, then the system is

Your answerChoose one option.

linear and time-variant

linear and time-invariant

non-linear and time-variant

non-linear and time-invariant

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Two discrete-time linear time-invariant systems with impulse responses

and

are connected in cascade, where

is the Kronecker delta. The impulse response of the cascaded system is

Your answerChoose one option.

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Consider the table given:

Constructional feature	Machine type	Mitigation
(P) Damper bars	(S) Induction motor	(X) Hunting
(Q) Skewed rotor slots	(T) Transformer	(Y) Magnetic locking
(R) Compensating winding	(U) Synchronous machine	(Z) Armature reaction
	(V) DC machine

The correct combination that relates the constructional feature, machine type and mitigation is

Your answerChoose one option.

P-V-X, Q-U-Z, R-T-Y

P-U-X, Q-S-Y, R-V-Z

P-T-Y, Q-V-Z, R-S-X

P-U-X, Q-V-Y, R-T-Z

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Consider a power system consisting of

number of buses. Buses in this power system are categorized into slack bus, PV buses and PQ buses for load flow study. The number of PQ buses is

. The balanced Newton-Raphson method is used to carry out load flow study in polar form,

and

are sub-matrices of the Jacobian matrix

as shown below:

The dimension of the sub-matrix

Your answerChoose one option.

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Two generators have cost functions

and

. Their incremental-cost characteristics are

They need to deliver a combined load of 260 MW. Ignoring the network losses, for economic operation, the generations

and

(in MW) are

Your answerChoose one option.

P₁ = P₂ = 130

P₁ = 160, P₂ = 100

P₁ = 140, P₂ = 120

P₁ = 120, P₂ = 140

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For the closed-loop system shown, the transfer function

Diagram for Electrical Engineering question 11

Your answerChoose one option.

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Inductance is measured by

Your answerChoose one option.

Schering bridge

Maxwell bridge

Kelvin bridge

Wien bridge

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Suppose the circles

and

intersect each other orthogonally at the point

. Then

________.

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In the given circuit, the value of capacitor C that makes current I = 0 is ________ μF.

Diagram for Electrical Engineering question 14

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Two single-core power cables have total conductor resistances of 0.7 Ω and 0.5 Ω, respectively, and their insulation resistances (between core and sheath) are 600 MΩ and 900 MΩ, respectively. When the two cables are joined in series, the ratio of insulation resistance to conductor resistance is ________ × 10⁶.

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GATE EE discipline:electrical-electronics-and-instrumentation PYQs

Question 6

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Question 8

Question 9

Question 10

Question 11

Question 12

Question 13

Question 14

Question 15