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IES preparation for Electrical Engineering

(11 Posts)

This thread is dedicated to preparation for Electrical Engineering - EE section of IES (Indian Engineering Services). You may share questions related to topics like Power Systems, Control System, Electrical Circuit and Fields, Analog and Digital Electronics, Measurements and Instrument, Power Electronics and Drives, Electrical Machines etc.

Question should not exceed 100 characters.Use add options for multiple choice questions and "Uploadimage/Add related data" for passage text papers.
Question should be at least 10 characters long.
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Amarendra Matsa
Shared from Electrical Machines - 1 (One Mark) on Jan 06, 2018 11:29 AM

If Id and Iq are the direct and quadrature current components (respectively) in a salient pole synchronous machine and Ea is the internal induced emf, then which of the following statements is true?

 
Id and Iq are both in phase with induced emf Ea.
Iq is in phase with Ea and Id is at 90° to Ea.
Iq is at 90° to Ea and Id is in phase with Ea.
Id and Iq are at 90° to Ea.
Please type your answer before submitting.

There is mistake in the answers in option B both currents are Iq's

Yatendra Kumar Mahawar
Shared from Power System - 1 (One Mark) on Feb 15, 2017 2:32 PM

The efficiency of a nuclear power plant is less than that of a conventional fuel fired thermal plant because of

 
less rejection of heat in the condenser
higher temperature conditions
higher pressure conditions
low temperature and pressure conditions
Please type your answer before submitting.

Very good

Satyanarayana
Shared from Electrical Machines on Nov 25, 2016 4:05 PM

The magnetic axes of P and S shown in the fig are set at an angle O, what will be the voltage induced in S if O = 45o?

"

 
353.5
848.5
212.5 × 103
88.5 × 103
Please type your answer before submitting.

Why it is cosine function

Virendra
Shared from Electrical Circuit on Jan 05, 2016 11:27 AM

The parameter type and the matrix representation of the relevant two port parameters that describe the circuit shown are

"

 
"
"
"
"
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I never read this type of h parameter circuit..??

Vishal
Shared from Power System - 3 (Two Marks) on Oct 15, 2015 10:41 AM

The reactance diagram of a system is shown in the figure. The bus admittance matrix YBUS for the system is

 
Please type your answer before submitting.

Your ans did not match the options