Indian Forest Service 2017 Mechanical Engineering Paper II PDF

Central Government Jobs Engineer 2017

  • Year 2017
  • Conducted By UPSC
  • Questions 8
  • Maximum Marks 200
  • Duration Three Hours
  • Languages English

Exam Details

Detail Information
Examination Indian Forest Service (Main) Examination
Year 2017
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 is the Mechanical Engineering Paper II for the Indian Forest Service (Main) Examination held in 2017 by UPSC. The paper carried a maximum of 200 marks and was to be completed within three hours. It consists of eight questions, of which candidates must attempt five, including compulsory questions 1 and 5. The remaining questions require selecting at least one from each of the two sections, A and B. This paper is crucial for aspirants aiming for engineering roles within the Indian Forest Service, testing their in-depth knowledge of core mechanical engineering subjects.

Major Topics Covered

  • Thermodynamics
  • Fluid Mechanics
  • Heat Transfer
  • Internal Combustion Engines
  • Emissions Control
  • Chimney Design
  • Springs
  • Piston-Cylinder Devices

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 2016 Mechanical Engineering Paper II
  • Indian Forest Service (Main) Examination 2018 Mechanical Engineering Paper II
  • Engineering Services Examination 2017 Mechanical Engineering Paper I
  • Engineering Services Examination 2017 Mechanical Engineering Paper II
  • IFS 2017 Mechanical Engineering Paper II Answer Key
  • UPSC Mechanical Engineering Answer Key 2017
  • Indian Forest Service Mechanical Engineering Syllabus
  • UPSC Engineering Services Mechanical Engineering Syllabus

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 Ouestion-cum-Answer Booklet must be clearly struck off.
  • The number of marks carried by a question/part is indicated against it.
  • Answers must be written in ENGLISH only.
  • 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.
  • 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) A piston-cylinder device contains 0.05 \text m3 of a gas initially at 200 kPa. At this state, a linear spring that has a spring constant of 150 kN/m is touching the piston but exerting no force on it. Now heat is transferred to the gas, causing the piston to rise and to compress the spring until the volume inside the cylinder doubles. If the cross-sectional area of the piston is 0.25 \text m2, determine (i) the final pressure inside the cylinder, (ii) the total work done by the gas.

(b) Calculate the approximate Grashof number and state if the flow is laminar or turbulent for the following:
(i) A central heating radiator, 0.6 m high with a surface temperature of 75\circC in a room at 18°C, \rho = 1.2 kg/m3, Pr = 0.72 and μ = 1.8 × 10-5 kg/ms.
(ii) A horizontal oil sump with a surface temperature of 40°C, 0.4 m long and 0.2 m wide containing oil at 75°C. Take \rho = 854 \text kg/m^3, Pr = 546, β = 0.7 × 10-3 \text K-1 and μ = 3.56 × 10-2 \text kg/ms.

(c) Discuss the causes, effects and the actions to be taken to remove/reduce the following emissions from I.C. engines :
(i) Oxides of Nitrogen (NOx)
(ii) Smoke
(iii) Carbon Monoxide (CO)
(iv) Unburned Hydrocarbons (HC)
(v) Sulphur Oxides (SO2)

(d) A chimney has a height of 100 metres. For the maximum discharge condition, calculate the temperature of the chimney gases and the draught produced if the air supplied per kg of fuel is 18 kg. Also determine the efficiency of this chimney as an instrument for creating the draught, if the temperature of chimney gases in artificial draught system is limited to 120°C. Take the boiler house temperature as 40°C and the specific heat of flue gases as 1.005 kJ/kg K.

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Frequently asked questions

What is the name of the exam?

The exam is the Indian Forest Service (Main) Examination.

Which year is this question paper from?

This question paper is from the year 2017.

Who conducts the Indian Forest Service Examination?

The Union Public Service Commission (UPSC) conducts the Indian Forest Service Examination.

What is the subject of this paper?

This paper is for Mechanical Engineering, specifically Paper II.

What is the maximum marks for this paper?

The maximum marks for Mechanical Engineering Paper II is 200.

What is the time duration allowed for this paper?

The time allowed for this paper is Three Hours.

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