Mechanical Engineering Paper - I

Central Government Jobs Engineer 2025

  • Year 2025
  • Conducted By Union Public Service Commission (UPSC)
  • Questions 8
  • Maximum Marks 250
  • Duration Three Hours Maximum Marks: 250 प्रश्न-पत्र सम्बन्धी विशेष अनुदेश कृपया प्रश्नों के उत्तर देने से पूर्व निम्नलिखित प्रत्येक अनुदेश को ध्यानपूर्वक पढ़ें : इसमें आठ प्रश्न हैं जो दो खण्डों में विभाजित हैं तथा हिन्दी और अंग्रेज़ी दोनों में छपे हुए हैं। परीक्षार्थी को कुल
  • Languages Hindi & English

Exam Details

Detail Information
Examination Civil Services (Main) Examination
Year 2025
Conducting Body Union Public Service Commission (UPSC)
Paper Mechanical Engineering Paper - I
Subject Mechanical Engineering
Duration Three Hours Maximum Marks: 250 प्रश्न-पत्र सम्बन्धी विशेष अनुदेश कृपया प्रश्नों के उत्तर देने से पूर्व निम्नलिखित प्रत्येक अनुदेश को ध्यानपूर्वक पढ़ें : इसमें आठ प्रश्न हैं जो दो खण्डों में विभाजित हैं तथा हिन्दी और अंग्रेज़ी दोनों में छपे हुए हैं। परीक्षार्थी को कुल
Maximum Marks 250
Number of Questions 8
Question Type Mixed

This page hosts the Civil Services (Main) Examination (2025) question paper conducted by Union Public Service Commission (UPSC). Subject: Mechanical Engineering. Maximum marks: 250. Duration: Three Hours Maximum Marks: 250 प्रश्न-पत्र सम्बन्धी विशेष अनुदेश कृपया प्रश्नों के उत्तर देने से पूर्व निम्नलिखित प्रत्येक अनुदेश को ध्यानपूर्वक पढ़ें : इसमें आठ प्रश्न हैं जो दो खण्डों में विभाजित हैं तथा हिन्दी और अंग्रेज़ी दोनों में छपे हुए हैं। परीक्षार्थी को कुल. Question type: mixed. Read exam instructions and page-2 questions online, or download the official PDF for offline practice.

Major Topics Covered

  • UPSC Civil Services Main Examination
  • Mechanical Engineering
  • Engineering Mechanics
  • Machine Design
  • Gripper mechanism
  • Clamp force
  • Friction
  • Square threaded screw
  • Lead
  • Lever and handle
  • QCA booklet
  • Examination instructions
  • Bilingual examination
  • Medium of answer
  • Diagram in answer space
  • Section A
  • Section B
  • Maximum marks
  • Time management
  • Question paper format

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

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 अंशत: 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)

Q1.

() Q1. (a) F = 50 N लगाया गया है। C तथा E पर एकल वर्ग चूड़ी वाले पेंच का औसत व्यास 25 mm तथा अग्रण (लीड) 5 mm है। G पर विकसित होने वाला बाँधन बल (क्लैम्पिंग फोर्स) निर्धारित कीजिए। स्थैतिक घर्षण गुणांक μs = 0.3 है।

() Q1. (a) A gripper is shown in the figure. A horizontal force F = 50 N is applied to the handle of the lever at E. The mean diameter of the single square threaded screw at C and E is 25 mm and lead is 5 mm. Determine the clamping force developed at G. The coefficient of static friction is μs = 0.3.

Question paper preview

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Civil Services (Main) Examination 2025 Mechanical Engineering Paper - I Union Public Service Commission (UPSC) question paper page 1 instructions scan PDF download
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Civil Services (Main) Examination 2025 Mechanical Engineering Paper - I Union Public Service Commission (UPSC) question paper page 1 instructions scan PDF download

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How many questions are on this paper?

The paper lists 8 questions as per the official booklet.

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