Indian Forest Service 2016 Chemical Engineering Paper-II PDF

Central Government Jobs Engineer 2016

  • Year 2016
  • Conducted By UPSC
  • Questions 8
  • Maximum Marks 200
  • Duration Three Hours
  • Languages English

Exam Details

Detail Information
Examination Indian Forest Service Exam
Year 2016
Conducting Body UPSC
Paper Chemical Engineering Paper-II
Subject Chemical Engineering
Duration Three Hours
Maximum Marks 200
Number of Questions 8
Question Type Mixed

This is the official question paper for the Indian Forest Service (IFS) Exam 2016, specifically Paper-II for Chemical Engineering. Conducted by UPSC, this paper carried a maximum of 200 marks and was to be completed within three hours. It comprises eight questions, of which five are compulsory, including questions 1 and 5. Candidates must attempt at least one question from each of the two sections (A and B) from the remaining six questions. This paper is crucial for aspirants aiming for a career in forest services, providing insights into the expected difficulty and subject coverage in Chemical Engineering.

Major Topics Covered

  • Chemical Engineering
  • Reaction Engineering
  • Combustion
  • Phase Rule
  • Raoult's Law
  • Kinetics
  • Catalysis
  • Equations of State
  • Refrigeration

Why This Paper is Important

  • Useful for Indian Forest Service Exam 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 Exam 2015 Chemical Engineering Paper-II
  • Indian Forest Service Exam 2017 Chemical Engineering Paper-II
  • Engineering Services Exam 2016 Chemical Engineering Paper-II
  • Indian Forest Service 2016 Chemical Engineering Paper-II Answer Key
  • Indian Forest Service Exam Syllabus
  • Chemical Engineering Syllabus for Competitive Exams
  • Indian Forest Service Exam Pattern
  • UPSC Exam 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.
  • 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.

Questions (page 2)

Section A

Q1.

(a) Explain the following terms with suitable illustrations for an operation involving reaction with recycle :
(i) Overall conversion
(ii) Single-pass conversion

(b) Define the following terms for combustion reaction :
(i) Theoretical oxygen demand
(ii) Percentage of excess air

(c) Define degrees of freedom of each of the following equilibrium systems using Gibbs' phase rule :
(i) A vapour-liquid mixture of four hydrocarbons
(ii) NaCl crystals suspended in an aqueous NaCl solution

(d) State Raoult's law and indicate its applications in vapour-liquid equilibrium calculations.

(e) Define half-life time [t_{1/2}] of a reaction and derive the half-life time expression for first-order reaction.

(f) What are the factors that influence the selection of a catalyst for a catalytic reaction?

(g) What is an equation of state? What is the ideal gas equation? At what conditions does the ideal gas equation provide the most accurate estimates?

(h) What are the factors that influence the choice of good refrigerant for a refrigeration unit?

Section A

Q2.

(a) Methane burns in a reactor according to the following stoichiometry :
CH4 + 2O2 ightarrow CO2 + 2H2O
CH4 + 1.5O2 ightarrow CO + 2H2O
One hundred mol/h of methane is fed to a reactor.
(i) What is the theoretical O2 flow rate if the complete combustion occurs in the reactor?
(ii) What is the theoretical O2 flow rate assuming that only 70% methane reacts?
(iii) What is the theoretical flow rate of air?
(iv) If the actual flow rate of air is such that 300 mol O2/h enters the reactor, what is the percent excess air?

Question paper preview

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

Page 1
Indian Forest Service (IFS) Exam 2016 Chemical Engineering Paper-II page 1 scan PDF download, featuring exam header and instructions for candidates.
Page 2
Indian Forest Service (IFS) Exam 2016 Chemical Engineering Paper-II page 1 scan PDF download, featuring exam header and instructions for candidates.

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Frequently asked questions

What is the name of the exam?

The exam is the Indian Forest Service (IFS) Exam.

What year is this question paper from?

This question paper is from the year 2016.

Which conducting body organized this exam?

The exam was conducted by UPSC (Union Public Service Commission).

What is the subject of this paper?

This paper is for Chemical Engineering, specifically Paper-II.

What is the maximum marks for this paper?

The maximum marks for this paper are 200.

What is the time duration allowed for this paper?

The time allowed for this paper is Three Hours.

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