UPSC Civil Services Mechanical Engineering Paper II 2024 Question Paper PDF

Central Government Jobs Engineer 2024

  • Year 2024
  • Conducted By UPSC
  • Questions 8
  • Maximum Marks 250
  • Duration Three Hours
  • Languages Hindi & English

Exam Details

Detail Information
Examination Civil Services (Main) Examination
Year 2024
Conducting Body UPSC
Paper Mechanical Engineering Paper - II
Subject Mechanical Engineering
Duration Three Hours
Maximum Marks 250
Number of Questions 8
Question Type Mixed

This is the official question paper for the Mechanical Engineering Paper II of the Civil Services (Main) Examination 2024, conducted by UPSC. The paper carries a maximum of 250 marks and is to be completed within three hours. It consists of eight questions divided into two sections, with questions presented in both Hindi and English. Candidates are required to answer a total of five questions, including compulsory questions 1 and 5, and at least one from each section. This paper is crucial for aspirants aiming for engineering services through the Civil Services exam.

Major Topics Covered

  • Mechanical Engineering
  • Thermodynamics
  • Fluid Mechanics
  • Quasi-static processes
  • Adiabatic expansion
  • Constant pressure process
  • Constant volume compression
  • Nozzle
  • Continuity equation
  • Momentum equation
  • Energy equation

Why This Paper is Important

  • Useful for Civil Services (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

  • Mechanical Engineering Paper - I
  • General Studies Paper - I
  • General Studies Paper - II
  • General Studies Paper - III
  • General Studies Paper - IV
  • UPSC Civil Services Mechanical Engineering Paper II 2024 Answer Key
  • UPSC Civil Services Mechanical Engineering Syllabus
  • Mechanical Engineering Thermodynamics Syllabus

Instructions

  • पुस्तिका के मुख-पृष्ठ पर निर्दिष्ट स्थान पर किया जाना चाहिए ।
  • प्राधिकृत माध्यम के अतिरिक्त अन्य किसी माध्यम में लिखे गए उत्तर पर कोई अंक नहीं मिलेंगे ।
  • प्रश्न का उत्तर देने के लिए यदि कोई पूर्वधारणाएँ बनाई गई हों, तो उन्हें स्पष्ट रूप से निर्दिष्ट कीजिए ।
  • जहाँ आवश्यक हो, आरेखों व चित्राकृतियों को, प्रश्न का उत्तर देने के लिए दिए गए स्थान में ही बनाइए ।
  • जब तक उल्लिखित न हो, संकेत तथा शब्दावली प्रचलित मानक अर्थों में प्रयुक्त हैं ।
  • प्रश्नों के उत्तरों की गणना क्रमानुसार की जाएगी ।
  • यदि काटा नहीं हो, तो प्रश्न के उत्तर की गणना की जाएगी चाहे वह उत्तर अंशतः दिया गया हो ।
  • प्रश्न-सह-उत्तर (क्यू.सी.ए.) पुस्तिका में खाली छोड़ा हुआ पृष्ठ या उसके अंश को स्पष्ट रूप से काटा जाना चाहिए ।

  • There are EIGHT questions divided in TWO SECTIONS and printed both in HINDI and in ENGLISH.
  • Candidate has to attempt FIVE questions in all.
  • Questions no. 1 and 5 are compulsory and out of the remaining, any THREE are to be attempted choosing at least ONE question from each section.
  • The number of marks carried by a question / part is indicated against it.
  • Answers must be written in the medium authorized in the Admission Certificate which must be stated clearly on the cover of this Question-cum-Answer (QCA) Booklet in the space provided.
  • No marks will be given for answers written in a medium other than the authorized one.
  • Wherever any assumptions are made for answering a question, they must be clearly indicated.
  • Diagrams/Figures, wherever required, shall be drawn in the space provided for answering the question itself.
  • Unless otherwise mentioned, symbols and notations carry their usual standard meanings.
  • 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 (QCA) Booklet must be clearly struck off.

Questions (page 2)

Section A

Q1. Q1. (a) एक पिस्टन-सिलिन्डर विन्यास में 2 gm वायु की मात्रा स्थैतिक-कल्प प्रक्रमों के निम्नलिखित अनुक्रम से गुज़रती है:
(i) एक रुद्धोष्म प्रसार जिसमें आयतन दुगुना हो जाता है।
(ii) एक स्थिर दाब प्रक्रम जिसमें आयतन को घटाकर उसके प्रारंभिक मान तक ले आते हैं।
(iii) एक स्थिर आयतन संपीडन जो घूमकर अपनी प्रारंभिक अवस्था में आ जाता है।
वायु प्रारंभ में 150°C व 5 atm पर है। प्रक्रमों के अनुक्रम में वायु पर किए गए नेट कार्य का परिकलन कीजिए।
A 2 gm quantity of air undergoes the following sequence of quasi-static processes in a piston-cylinder arrangement :
(i) An adiabatic expansion in which the volume doubles.
(ii) A constant pressure process in which the volume is reduced to its initial value.
(iii) A constant volume compression back to the initial state.
The air is initially at 150°C and 5 atm. Calculate net work on the air in the sequence of processes. (b) एक तुंड पर विचार कीजिए जिसका अन्तर्गम क्षेत्रफल ‘A1’ व निर्गम क्षेत्रफल ‘A2’ है। उसके अन्तर्गम पर वेग V1 व निर्गम पर V2 है। यह तुंड असंपीड्य तरल (V2 > V1) को त्वरित करता है एवं दाब को कम करता है। क्या यह तुंड किसी परिस्थिति में तरल को वित्वरित कर सकता है ? यदि हाँ, तो अपने उत्तर को सांतत्य, संवेग व ऊर्जा समीकरणों की सहायता से उचित सिद्ध कीजिए।
Consider a nozzle of inlet area ‘A′′ and outlet area ‘A′′. The velocity is V1 at inlet and V2 at outlet. This nozzle accelerates the incompressible fluid (V2 > V1) and decreases the pressure. Can this nozzle in any condition, deaccelerate the fluid ? If yes, then justify your answer with the help of continuity, momentum and energy equations.

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UPSC Civil Services Mechanical Engineering Paper II 2024 question paper page 1 instructions and exam header scan PDF download
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Frequently asked questions

What is the name of the examination?

The examination is the Civil Services (Main) Examination.

Which paper is this question paper for?

This is for Mechanical Engineering Paper II.

What is the conducting body?

The Union Public Service Commission (UPSC).

What is the maximum marks for this paper?

The maximum marks for this paper are 250.

What is the time allowed to complete the paper?

The time allowed is Three Hours.

How many questions are there in total?

There are eight questions in total.

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