Question 2497 - GATE Electrical Engineering

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Q#1 Induction Machines GATE EE 2021 NAT +1 mark -0 marks

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The power input to a 500 V, 50 Hz, 6-pole. 3-phase induction motor running at 975 RPM is 40 kW. The total stator losses are 1 kW. If the total friction and windage losses are 2.025 kW. then the efficiency is __________ %.

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Network Analysis

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Network Basics

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Network Theorems (DC Circuits)

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Two Port Network

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Signals and Systems

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LTI Systems

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Fourier Transform

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Sampling

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Control Systems

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Transfer Function

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Time Response Analysis

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Analog Electronics

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BJT

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JFET

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MOSFET

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Amplifiers

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OP-AMP and its Applications

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Digital Electronics

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Number Systems

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Sequential Circuits

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Data Converters

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Memory

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Microprocessor

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Computer Organisation

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Electrical Machines

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Transformers

109

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Construction of Transformer	0	Browse
Induced EMF - Transformer	0	Browse
Equivalent Circuit - Transformer	0	Browse
Testing of a Transformer	0	Browse
Losses and Efficiency - Transformer	0	Browse
Voltage Regulation - Transformer	0	Browse
Three Phase Transformer	0	Browse
Auto Transformer	0	Browse
Parallel Operation - Transformer	0	Browse
Harmonics in Transformer	0	Browse
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DC Machines

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Losses and Efficiency - DC Machines	0	Browse
Speed Control of DC Motor	0	Browse
Starting, Braking and Testing of DC Motor	0	Browse
Characteristics of DC machines	0	Browse
Electromechanical Energy Conversion	0	Browse
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Synchronous Machines

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Equivalent Circuit - Synchronous Machines	0	Browse
Synchronous Impedance	0	Browse
Power Angle Equation	0	Browse
Parallel Operation - Synchronous Machines	0	Browse
Losses and Efficiency - Synchronous Machines	0	Browse
Voltage Regulation - Synchronous Machines	0	Browse
Droop Characteristics	0	Browse
Salient Pole Machines	0	Browse
Synchronous Motor	0	Browse
Cascading of Machines	0	Browse
Contruction and Physical Phenomenon	0	Browse
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Induction Machines

110

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Construction and Rotating Magnetic Field	0	Browse
Equivalent Circuit - Induction Machines	0	Browse
Torque Slip Characteristics	0	Browse
Power and Efficiency	0	Browse
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Starting of Induction Motor	0	Browse
Speed Control	0	Browse
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Singe Phase Induction Motor	0	Browse
Stepper Motor	0	Browse
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Special Machines

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Power Electronics

237

Power Semiconductor Devices

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Phase Controlled Converter

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Dual Converter	0	Browse
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Chopper

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Buck Converter	0	Browse
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Inverter

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AC and DC Drives

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Power Systems

343

Power System Generation

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Transmission and Distribution

139

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Wave Nature of Long Transmission Line	0	Browse
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Power and ABCD Parameters	0	Browse
Voltage and Frequency Control	0	Browse
Power Factor Correction	0	Browse
UG Cables	0	Browse
Overhead Insulators	0	Browse
Corona	0	Browse
Distribution Systems	0	Browse
HVDC	0	Browse
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Economic Load Dispatch

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Fault Analysis

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Per Unit System	0	Browse
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Symmetrical Fault Analysis	0	Browse
Unsymmetrical Fault Analysis	0	Browse
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Power System Stability

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Load Flow Analysis

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Power System Protection

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Circuit Breakers	0	Browse
Overcurrent Protection	0	Browse
Protection of Alternator	0	Browse
Protection of Transformer	0	Browse
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EMFT EE

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Measurement

152

Error Analysis

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Electro-mechanical Instruments

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PMMC Instruments	0	Browse
Moving Iron Instruments	0	Browse
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Ammeter and Voltmeter	0	Browse
Wattmeter	0	Browse
Energy Meter	0	Browse
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Measurement of R,L and C

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CRO

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Differential Calculus	0	Browse
Integral Calculus	0	Browse
Vector Calculus	0	Browse
Topic-wide	63	Browse

Differential Equations

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First Order Differential Equations	0	Browse
Higher Order Differential Equations	0	Browse
Topic-wide	18	Browse

Complex Functions

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Analytic Functions (Cauchy Riemann Equations) and compex numbers	0	Browse
Complex Integral	0	Browse
Topic-wide	23	Browse

Probability and Statistics

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Probability	0	Browse
Statistics	0	Browse
Random Variable	0	Browse
Topic-wide	32	Browse

Numerical Methods

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Solution of Non-Linear Equation	0	Browse
Numerical Integration	0	Browse
Numerical Solution of Differential Equations	0	Browse
Topic-wide	15	Browse

Transform Theory

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Laplace Transform	0	Browse
Fourier Transform	0	Browse
Z-Transform	0	Browse
Topic-wide	6	Browse

General Aptitude

206

Numerical Ability

116

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Analytical Reasoning	0	Browse
Logical Reasoning	0	Browse
Progressions	0	Browse
Numbers	0	Browse
Clocks and Time Sequence	0	Browse
LCM and HCF, Factors and Remainders	0	Browse
Simple and Compound Interest	0	Browse
Venn Diagrams	0	Browse
Direction Sense	0	Browse
Arithmetic Reasoning	0	Browse
Insert Missing Character	0	Browse
Ratio and Proportion	0	Browse
Percentage, Profit, Loss and Partnerships	0	Browse
Stocks and Shares	0	Browse
Average, Mixtures and Allegations	0	Browse
Geometry and Mensuration	0	Browse
Ages	0	Browse
Time and Work	0	Browse
Pipes and Cisterns	0	Browse
Time and Distance	0	Browse
Data Interpretation	0	Browse
Analytical Figures	0	Browse
Blood Relations	0	Browse
Coding and Decoding	0	Browse
Cube and Dice	0	Browse
Ranking	0	Browse
Speed and Relative Speed	0	Browse
Logarithms	0	Browse
Involution and Evolution	0	Browse
Probability	0	Browse
Permutation and Combinations	0	Browse
Quadratic Equations	0	Browse
Miscellaneous - Numerical Ability	0	Browse
Topic-wide	116	Browse

Verbal Ability

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Grammar	0	Browse
Spotting Errors	0	Browse
Objective Comprehension	0	Browse
Sentence Completion	0	Browse
Sentence Improvement	0	Browse
Analogy	0	Browse
Ordering of Sentences	0	Browse
Vocabulary	0	Browse
Critical Reasoning	0	Browse
Miscellaneous - Verbal Ability	0	Browse
Topic-wide	90	Browse