How many questions are there in total?

There are eight questions in all.

How many questions are to be attempted?

Five questions are to be attempted.

Which questions are compulsory?

Questions no. 1 and 5 are compulsory.

How are the remaining questions to be attempted?

Out of the remaining six questions, three are to be attempted, selecting at least one from each of the two Sections A and B.

Do all questions carry equal marks?

Yes, all questions carry equal marks.

Where can I find the official question paper?

Official question papers are typically released by UPSC on their website or through authorized portals.

Indian Forest Service 2023 Mechanical Engineering Paper I PDF

Name: Indian Forest Service 2023 Mechanical Engineering Paper I PDF
Creator: UPSC
Keywords: Indian Forest Service 2023 Mechanical Engineering Paper I, IFS 2023 Mechanical Engineering Question Paper, UPSC Mechanical Engineering Paper I PDF, Mechanical Engineering Paper I 2023, Indian Forest Service Mains Mechanical Engineering, IFS Mains 2023 Paper I, Mechanical Engineering Exam Paper, UPSC IFS Previous Year Paper, 2023 IFS Mechanical Engineering, Mechanical Engineering Paper I UPSC

Central Government Jobs Engineer 2023

Year 2023
Conducted By UPSC
Maximum Marks 200
Languages English

Exam Details

Detail	Information
Examination	Indian Forest Service (Main) Examination
Year	2023
Conducting Body	UPSC
Paper	Mechanical Engineering Paper - I
Subject	Mechanical Engineering
Maximum Marks	200
Question Type	Mixed

This document contains the Mechanical Engineering Paper I from the Indian Forest Service (Main) Examination held in 2023, conducted by UPSC. It is a crucial resource for aspirants preparing for the IFS exam, offering insights into the types of questions asked, marking scheme, and important topics covered in Mechanical Engineering. The paper includes a mix of objective and descriptive questions, testing candidates' theoretical knowledge and application skills in various aspects of mechanical engineering. Analyzing this paper helps understand the exam pattern and difficulty level, aiding in strategic preparation.

Major Topics Covered

Chain Drive
Mechanical Vibrating System
Hardness Tests
Hydrodynamic Lubrication
Bearings
Reynolds' Equation
Axial Tensile Load
Stress and Strain

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 2022 Mechanical Engineering Paper I
Engineering Services Examination 2023 Mechanical Engineering Paper I
Indian Forest Service (Main) Examination 2023 Mechanical Engineering Paper I Answer Key
Indian Forest Service Mechanical Engineering Syllabus
UPSC Engineering Syllabus
Indian Forest Service Exam Pattern
UPSC Main Exam Pattern

Instructions

Boutcalent spring of staffite a formulance springs 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 when a mardness Why around the test indicated against it. set todio vas asal Unless otherwise mentioned, symbols and notations have their usual standard meanings.
Assume suitable data, if necessary and indicate the same clearly.
Neat sketch may be drawn, wherever required. should always kydrody a the lule \mathcal{U} Answers must be written in ENGLISH only.
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Questions (page 2)

Q1. A chain drive is used for reduction of speed from 260 rpm to 120 rpm. (a) The number of teeth in the driving sprocket is 30. Find the number of teeth on the driven sprocket. If the pitch circle diameter of the driven sprocket is 500 mm and centre distance is 1 m, determine the pitch and length of the chain. (b) A mechanical vibrating system has the following measurements : $Mass = 6 \text{ kg}$ Equivalent spring of stiffness for combined springs = 4.5 N/mm. If the vibrating system has a dashpot attached which exerts a force of 30 N when the mass has a velocity of 2 m/sec, find 8 Critical damping co-efficient (i) (ii) Damping factor Logarithmic decrement (iii) Ratio of two consecutive amplitudes (iv) (c) Define hardness. Why are hardness tests performed more frequently than any other mechanical tests? What are the common hardness tests? Write the correlation formula between Brinell hardness number and tensile strength for most steels. (d) What is hydrodynamic lubrication in bearings ? State the assumptions made in deriving Reynolds' equation for hydrodynamic bearings. 8 A 30 mm diameter bar is subjected to an axial tensile load of 110 kN. If (e) now, to reduce weight while keeping the external diameter constant, the bar is bored axially to generate a cylinder of uniform thickness, what is the maximum diameter of bore possible ? It is given that the maximum allowable stress is 225 MPa. The axial tensile load is to remain constant at 110 kN. 8 BJKE-U-MCHE $\overline{2}$

Question paper preview

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Indian Forest Service (Main) Examination 2023 Mechanical Engineering Paper I question paper page 1 instructions scan PDF download — Page 1

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Frequently asked questions

What is the name of the exam?

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

What is the year of this question paper?

This question paper is from the year 2023.

Who conducts the Indian Forest Service Examination?

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

What is the subject of this paper?

The subject of this paper is Mechanical Engineering, specifically Paper I.

What is the question paper type?

The paper type is mixed, containing both objective and descriptive questions.

What language is the paper written in?

The answers must be written in English only, as per the instructions.

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