Engineering Service Main 2021 Electrical Engineering Paper II PDF

Central Government Jobs Engineer 2021

  • Year 2021
  • Conducted By UPSC
  • Maximum Marks 300
  • Duration Three Hours
  • Languages English

Exam Details

Detail Information
Examination Engineering Service (Main) Examination
Year 2021
Conducting Body UPSC
Paper ELECTRICAL ENGINEERING Paper – II
Subject Electrical Engineering
Duration Three Hours
Maximum Marks 300
Question Type Descriptive / Subjective

This is the question paper for the Engineering Service (Main) Examination 2021, Paper II, conducted by UPSC for Electrical Engineering. The paper is designed to assess candidates' in-depth knowledge in the subject, with a total of 300 marks to be completed within three hours. It consists of descriptive questions, requiring detailed answers and analysis. Aspirants can use this paper to understand the exam's complexity, question types, and marking scheme, crucial for effective preparation for the ESE.

Major Topics Covered

  • Non-inverting amplifier
  • Closed loop gain
  • Pole locus
  • Sustained oscillation
  • DC generator
  • Induced EMF
  • Terminal voltage

Why This Paper is Important

  • Useful for Engineering Service (Main) Examination preparation
  • Helps understand the latest exam pattern
  • Useful for practice and self-assessment
  • Covers frequently asked General Studies topics
  • Helpful for analysing question trends

Related Resources

  • Engineering Service (Main) Examination 2020 Electrical Engineering Paper II
  • Engineering Service (Main) Examination 2022 Electrical Engineering Paper II
  • Engineering Service (Preliminary) Examination 2021 Electrical Engineering Paper I
  • ESE 2021 Electrical Engineering Paper II Answer Key
  • ESE Electrical Engineering Syllabus
  • UPSC Engineering Service Exam Syllabus
  • ESE Exam Pattern
  • UPSC Engineering Service Exam Pattern

Instructions

  • There are EIGHT questions divided in TWO sections.
  • Candidate has to attempt FIVE questions in all.
  • Questions No. 1 and 5 are compulsory and out of the remaining, THREE are to be attempted choosing at least ONE question from each Section.
  • The number of marks carried by a question / part is indicated against it.
  • Wherever any assumptions are made for answering a question, they must be clearly indicated.
  • Diagrams/Figures, wherever required, shall be drawn in the space provided for answering the question itself.
  • Unless otherwise mentioned, symbols and notations have their usual standard meanings.
  • Attempts of questions shall be counted in sequential order.
  • Unless struck off, attempt of a question shall be counted even if attempted partly.
  • Any page or portion of the page left blank in the Question-cum-Answer Booklet (QCA) must be clearly struck off.
  • Answers must be written in ENGLISH only.

Questions (page 2)

Section A

Q1.

(a) For a non-inverting amplifier with A0 = ∞, calculate the closed loop gain. What happens to the result when R1→ 0 and R3→ 0 ?

(b) The accompanying figure depicts the locus of closed loop poles of a system for 0 < K < ∞. From the plot, determine the frequency with which the system is likely to exhibit sustained oscillation. Determine the value of K at which one of the closed loop poles lie at s = -8.

(c) A 220 V, 8-pole, 4.5 kW, 1100 rpm, lap connected dc generator has 1200 conductors. Each conductor has a resistance of 100 m\Omega. The generator is run at half rated speed and is delivering rated current to load. Find the induced emf and corresponding terminal voltage under this condition. Assume constant field flux and no magnetic saturation of the machine during operation.

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Frequently asked questions

What is the name of the examination?

The examination is the Engineering Service (Main) Examination.

Which year is this question paper from?

This question paper is from the year 2021.

Who conducts the Engineering Service Examination?

The Engineering Service Examination is conducted by UPSC (Union Public Service Commission).

What is the subject of this paper?

This paper is for Electrical Engineering, specifically Paper II.

What is the maximum marks for this paper?

The maximum marks for this paper are 300.

What is the time allowed to complete the paper?

The time allowed to complete the paper is Three Hours.

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