Engineering Services Mechanical Engineering Paper I 2022 Question Paper PDF

Central Government Jobs Engineer 2022

  • Year 2022
  • Conducted By UPSC
  • Maximum Marks 300
  • Duration Three Hours
  • Languages English

Exam Details

Detail Information
Examination Engineering Services (Main) Examination
Year 2022
Conducting Body UPSC
Paper Mechanical Engineering Paper I
Subject Mechanical Engineering
Duration Three Hours
Maximum Marks 300
Question Type Mixed

This document contains the Mechanical Engineering Paper I from the Engineering Services (Main) Examination 2022, conducted by UPSC. The paper is designed to assess candidates' in-depth knowledge in Mechanical Engineering, with a total of 300 marks and a duration of three hours. It comprises eight questions divided into two sections, requiring candidates to attempt five questions, including compulsory questions 1 and 5, and at least one from each section. This paper is crucial for aspirants aiming for top positions in engineering services, providing a clear understanding of the exam's scope and difficulty.

Major Topics Covered

  • Thermodynamics
  • Heat Transfer
  • Fluid Mechanics
  • Strength of Materials
  • Theory of Machines
  • Manufacturing Engineering
  • Engineering Mechanics
  • Vortex Tube Refrigeration
  • Lumped Capacity Analysis

Why This Paper is Important

  • Useful for Engineering Services (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

  • Mechanical Engineering Paper II - ESE 2022
  • Civil Engineering Paper I - ESE 2022
  • Electrical Engineering Paper I - ESE 2022
  • ESE 2022 Mechanical Engineering Paper I Answer Key
  • ESE Mechanical Engineering Syllabus
  • ESE Mains Exam Pattern
  • ESE Exam Pattern
  • ESE Mains Exam Structure

Instructions

  • वियोज्य DETACHABLE ENGINEERING SERVICES (MAIN) EXAM-2022 MECHANICAL ENGINEERING Paper I

  • 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 any 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 carry their usual standard meanings.
  • Psychrometric Chart is given on Page No. 33, Steam table is given on Page Nos. 57-61.
  • 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 must be clearly struck off.
  • Answers must be written in ENGLISH only.

Questions (page 2)

Section A

Q1.

(a) A wooden block of specific gravity 0.75 floats in water. If the size of the block is 1 mt × 0.5 mt × 0.4 mt, find its metacentric height.

(b) In a cold winter night with an outside ambient temperature of 2\circC, a wall of house steadily loses 30 kJ per minute. If the inner and outer surface temperatures of the wall are maintained at 25°C and 8°C, respectively, determine the rate of energy destruction within the wall in watts.

(c) What are the physical assumptions necessary for a lumped capacity unsteady state heat transfer analysis to be applied?

(d) The brake fuel conversion efficiency of an engine is 30%. The mechanical and combustion efficiencies are 80% and 94%, respectively. The heat losses to the oil and coolant are 60 kW. The chemical energy of the fuel entering the engine is 190 kW. What percentage of this energy becomes (a) brake power; (b) friction power; (c) heat losses; (d) exhaust chemical energy; (e) exhaust sensible energy?

(e) Briefly explain the working principle of a vortex tube refrigeration system.

Section A

Q2.

(a) The diameter of the horizontal pipe which is 300 mm is suddenly enlarged to 600 mm. The rate of flow of water through this pipe is 0.4 \text m3/\textsec. If the intensity of pressure in the smaller pipe is 125 KN/m2, determine
(i) loss of head, due to sudden enlargement.
(ii) intensity of pressure in the larger pipe.
(iii) power lost due to enlargement.

(b) Argon at 39.85\circC with a volume of 0.5 m3 is initially contained in a piston-cylinder (cross sectional area 0.7 m2 and height 5.7 m) system with a massless piston loaded with water at 20°C and outside atmosphere (atmospheric pressure, P0 = 101.203 kPa) as shown in figure. If the piston just touches the stops, the volume of argon would be 0.8 \text m3. Heat is now added until the temperature of argon reaches 251.85\circC. Plot the entire process on P-v diagram. Assume piston to be adiabatic, determine
(i) the final pressure inside the cylinder
(ii) work done (in kJ) and
(iii) heat transfer during the process (in kJ).

Question paper preview

Scanned pages 1–2 for reference. Download the official PDF for the full paper.

Page 1
Engineering Services (Main) Examination 2022 Mechanical Engineering Paper I question paper page 1 instructions scan PDF download UPSC
Page 2
Engineering Services (Main) Examination 2022 Mechanical Engineering Paper I question paper page 1 instructions scan PDF download UPSC

Free question paper download

Download question paper PDF

  • 5.7 MB
  • 12 pages
  • PDF format

Frequently asked questions

What is the name of the examination?

The examination is the Engineering Services (Main) Examination.

Which paper is this question paper for?

This question paper is for Mechanical Engineering Paper I.

What is the conducting body for this examination?

The conducting body is UPSC (Union Public Service Commission).

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.

How many questions are there in the paper?

There are eight questions divided into two sections.

← Back to Engineer papers