UPSC IFS Main 2025 Agricultural Engineering Paper II PDF

Central Government Jobs Engineer 2025

  • Year 2025
  • Conducted By UPSC
  • Questions 8
  • Maximum Marks 200
  • Duration Three Hours
  • Languages English

Exam Details

Detail Information
Examination UPSC Indian Forest Service (Main) Examination
Year 2025
Conducting Body UPSC
Paper Agricultural Engineering Paper - II
Subject Agricultural Engineering
Duration Three Hours
Maximum Marks 200
Number of Questions 8
Question Type Mixed

This document contains the question paper for the Agricultural Engineering Paper - II of the UPSC Indian Forest Service (Main) Examination 2025. The paper consists of eight questions, of which five are to be attempted. Questions 1 and 5 are compulsory, and candidates must select at least one question from each of the two sections (A and B) from the remaining six. Answers are to be written in English only. This paper is crucial for aspirants aiming to qualify for the Indian Forest Service, providing a clear understanding of the exam's scope and difficulty level in Agricultural Engineering.

Major Topics Covered

  • Agricultural Engineering
  • IC Engines
  • Depreciation Calculation
  • Tractor Power
  • Lubrication
  • Solar Energy
  • Solar Constant
  • Solar Collectors
  • Carburettor
  • Biomass Gasification
  • Valve Timing Diagram

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

  • UPSC IFS Main 2025 Agricultural Engineering Paper I
  • UPSC IFS Main 2024 Agricultural Engineering Paper II
  • UPSC IFS Main 2025 General Studies Paper I
  • UPSC IFS Main 2025 Agricultural Engineering Paper II Answer Key
  • UPSC IFS Main Syllabus Agricultural Engineering
  • UPSC IFS Main Exam Pattern
  • UPSC IFS Main Exam Pattern
  • UPSC IFS Main Examination Structure

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.
  • 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. "I Syfer als take the signification of the later in the model and incredit completely this special and make the state of the second control of the second control of the second control of the second control of the second control of the second control of the second control of the second control of the second STAR - DAR - SUBARQUE SUBASE K.

Questions (page 2)

Section A

Q1. Define indicated thermal efficiency and relative efficiency of an IC engine. Why is relative efficiency preferred as a measure of engine performance? Define depreciation and list the different methods employed in calculating depreciation. Also, indicate which method is common for farm machines. A disk harrow with a draft of 18 N is required to be pulled at a speed of 4 km/h in a firm untilled field by a tractor having maximum PTO power rating of 40 kW. Calculate the actual PTO power needed to pull the harrow, if the tractive and transmission coefficient for a 2-wheel drive tractor for the untilled firm soil is 0.75. Enlist the reasons for lubricating the different moving parts of IC engine. Also, state what you understand by 'Multigrade' lubricating oil. What is Solar Constant? Write about the instruments that are used to measure solar energy. Define the following:

(e) Cetane number

(i) Cetane number

(ii) Volumetric efficiency of IC engine

(iii) Firing order in multicylinder engine

(iv) Compression ratio

Section A

Q2. Write short notes on the following: Write down the functions of a Carburettor. Explain with the help of a sketch the principle and working of a simple Float-type Carburettor. Discuss the different types of solar energy collectors and their applications.

(a) Pressurised radiator cap

(i) Pressurised radiator cap

(ii) Nozzles of agricultural sprayers

(iii) Accessories of tractor drawn mouldboard plough

(iv) Gasification of biomass

(v) Valve timing diagram of a 4-stroke cycle IC engine

Question paper preview

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Frequently asked questions

What is the name of the examination?

The examination is the UPSC Indian Forest Service (Main) Examination.

What is the year of this question paper?

The year of this question paper is 2025.

Who conducts the Indian Forest Service Examination?

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

What is the specific paper name?

The specific paper name is Agricultural Engineering Paper - II.

What is the subject of this paper?

The subject is Agricultural Engineering.

What is the exam stage?

The exam stage is Main.

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