Indian Forest Service 2024 Mechanical Engineering Paper II Question Paper PDF

Central Government Jobs Engineer 2024

  • Year 2024
  • Conducted By UPSC
  • Questions 8
  • Maximum Marks 200
  • Duration Three Hours
  • Languages English

Exam Details

Detail Information
Examination Indian Forest Service (Main) Examination
Year 2024
Conducting Body UPSC
Paper Mechanical Engineering Paper - II
Subject Mechanical Engineering
Duration Three Hours
Maximum Marks 200
Number of Questions 8
Question Type Mixed

This document contains the Mechanical Engineering Paper II for the Indian Forest Service (Main) Examination 2024, conducted by UPSC. The paper consists of 8 questions, with candidates required to attempt 5, including compulsory questions 1 and 5. Candidates must select at least one question from each of the two sections (A and B) from the remaining six. The paper is designed to assess candidates' in-depth knowledge of Mechanical Engineering principles relevant to the forest service. All questions carry equal marks, and answers must be written in English only, adhering to SI units. This paper is a crucial resource for aspirants preparing for the IFS Mains exam, offering insights into the exam pattern, marking scheme, and expected question types.

Major Topics Covered

  • Refrigeration
  • Chemical Equilibrium
  • Combustion
  • Adiabatic Flame Temperature
  • Heat Transfer
  • Convective Heat Transfer
  • SI Engines
  • Thermodynamics
  • Fluid Mechanics

Why This Paper is Important

  • Useful for Indian Forest 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

  • Indian Forest Service (Main) Examination 2023 Mechanical Engineering Paper II
  • Indian Forest Service (Main) Examination 2024 Mechanical Engineering Paper I
  • Engineering Services Examination 2024 Mechanical Engineering Paper II
  • Indian Forest Service (Main) Examination 2024 Mechanical Engineering Paper II Answer Key
  • UPSC IFS 2024 Mechanical Engineering Paper II Solutions
  • Indian Forest Service (Main) Examination Syllabus
  • Mechanical Engineering Syllabus for UPSC Exams
  • Indian Forest Service (Main) Examination Pattern

Instructions

  • There are EIGHT questions in all, out of which FIVE are to be attempted.
  • Out of the remaining SIX questions, THREE are to be attempted selecting at least ONE question from each of the two Sections A and B.
  • 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.
  • The number of marks carried by a question/part is indicated against it.
  • Unless otherwise mentioned, symbols and notations have their usual standard meanings.
  • Assume suitable data, if necessary and indicate the same clearly.
  • Neat sketches may be drawn, wherever required.
  • Answers must be written in ENGLISH only.
  • Newton may be converted to kgf using the equality 1 kilonewton (1 kN) ---- 100 kgf, if found necessary.
  • Take: 1 kcal = 4.187 kJ and 1 kg/cm2 - 0.98 bar 1 bar = 10^5 pascals Universal gas constant = 8314.6 J/kmol-K Psychrometric chart is enclosed.

Questions (page 2)

Section A

Q1. A researcher measures that a refrigerator consumes 2 kW power, has removed 30,000 kJ of heat from a refrigerated space, is maintained at -28°C. The ambient temperature is 22°C and the running time of the refrigerator for the process is 18 minutes. Determine if these measurements are reasonable. Explain the term chemical equilibrium. How are equilibrium products of combustion different from non-dissociated species? Also explain the effect of temperature on the equilibrium composition. What is adiabatic flame temperature? How is it calculated for a given hydrocarbon fuel? Explain the factors which influence the adiabatic flame temperature for a given fuel-air mixture at a particular equivalence ratio. What is the typical range of convective heat transfer coefficient for the following cases? A three-cylinder, four-stroke cycle SI engine having bore 68.5 mm and stroke 72.0 mm runs at 3000 rpm with air-fuel ratio 15:1 and develops indicated mean effective pressure 10 bar. Calorific value of the fuel used is 44,000 kJ/kg. Mechanical efficiency is 0.85, combustion efficiency is 0.97 and volumetric efficiency is 0.9. Density of air is 1.18 kg/m3. Determine:

(i) Gases in free convection

(ii) Liquids in free convection

(iii) Gases in forced convection

(iv) Liquids in forced convection

(i) Indicated power in kW

(ii) Rate of air flow into the engine in kg/s

(iii) Brake thermal efficiency

(iv) Brake specific fuel consumption in kg/kWh.

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Frequently asked questions

What is the name of the exam for which this paper is intended?

This paper is for the Indian Forest Service (Main) Examination.

Which paper is this, and what is the subject?

This is Mechanical Engineering Paper - II.

Who conducts the Indian Forest Service Examination?

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

What is the year of this examination paper?

The year of this examination paper is 2024.

How many questions are there in total in this paper?

There are a total of EIGHT questions in this paper.

How many questions are candidates required to attempt?

Candidates are required to attempt FIVE questions out of the eight.

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