Indian Forest Service 2022 Chemical Engineering Paper I PDF

Central Government Jobs Engineer 2022

  • Year 2022
  • Conducted By UPSC
  • Questions 8
  • Maximum Marks 200
  • Duration Three Hours
  • Languages English

Exam Details

Detail Information
Examination Indian Forest Service (Main) Examination
Year 2022
Conducting Body UPSC
Paper Chemical Engineering Paper - I
Subject Chemical Engineering
Duration Three Hours
Maximum Marks 200
Number of Questions 8
Question Type Mixed

This document contains the question paper for the Indian Forest Service (Main) Examination 2022, specifically for Chemical Engineering Paper - I. Conducted by UPSC, this paper is designed to assess candidates' in-depth knowledge of Chemical Engineering principles. It allows a time duration of Three Hours and carries a maximum of 200 marks. The paper consists of eight questions, of which five are to be attempted, with compulsory questions 1 and 5. Aspirants must select at least one question from each of the two sections (A and B) from the remaining six questions. This paper is crucial for candidates aiming for a career in forest services through a rigorous engineering specialization.

Major Topics Covered

  • Chemical Engineering
  • Pumping
  • Cavitation
  • Diffusion
  • Solute Transfer
  • Gas-Liquid Transfer
  • Reflux Ratio
  • Evaporators
  • Filtration
  • Distillation
  • Thermodynamics
  • Mass Transfer

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 2021 Chemical Engineering Paper I
  • Indian Forest Service (Main) Examination 2023 Chemical Engineering Paper I
  • Engineering Services Examination 2022 Chemical Engineering Paper I
  • Indian Forest Service (Main) Examination 2022 Chemical Engineering Paper I Answer Key
  • Indian Forest Service (Main) Examination Syllabus
  • Chemical Engineering Syllabus for UPSC Exams
  • Indian Forest Service (Main) Examination Pattern
  • UPSC Exam Pattern for Engineering Papers

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.

Questions (page 2)

Section A

Q1.

(a) What do you know about the terms 'priming' and 'cavitation' in pumping operation? How do you avoid cavitation?

(b) (i) For the diffusion of solute A through a layer of gas to an absorbing liquid with y_A = 0.20 and y_{Ai} = 0.10, calculate the transfer rate for one way diffusion compared to that of equimolal diffusion. (ii) What is the value of y_A half way through the layer for one way diffusion?

(c) Describe "Optimum Reflux Ratio" with a neat sketch.

(d) What are the assumptions made in case of free settling velocity equation? How do you relax these assumptions for hindered settling velocity equation?

(e) Compare multiple effect evaporator with single effect evaporator in terms of steam economy and capacity.

Section A

Q2.

(a) A vacuum leaf filter gives a total volume of 10 m3 of filtrate in 30 minutes. Assuming that the resistance of filter cloth is negligible, find the time taken for the collection of 20 m3 and 30 m3 of filtrate.

(b) A methanol (A) – water (B) solution containing 50 wt% methanol at 26.7^{circ}C is to be continuously rectified at 1 std atm pressure at a rate of 5000 kg/h to provide a distillate containing 95% methanol and a residue containing 1.0% methanol (by weight). The feed is to be preheated by heat exchange with the residue, which will leave the system at 37.8^{circ}C. The distillate is to be totally condensed to a liquid and the reflux returned at a bubble point. The withdrawn distillate will be separately collected before storage. A reflux ratio of 1.5 times the minimum will be used. Determine (i) quantity of product, (ii) enthalpy of feed and of product, (iii) minimum reflux ratio, and (iv) minimum number of theoretical trays.

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Frequently asked questions

What is the name of the exam?

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

What year is this question paper from?

This question paper is from the year 2022.

Which paper is this?

This is Chemical Engineering Paper - I.

Who conducts the Indian Forest Service Examination?

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

What is the maximum marks for this paper?

The maximum marks for Chemical Engineering Paper - I is 200.

What is the time allowed to complete the paper?

The time allowed to complete the paper is Three Hours.

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