UPSC Mains Mechanical Engineering Optional Question Paper 2026: Download Paper 1 & 2 PDF

The UPSC Mains Mechanical Engineering Optional Question Paper 2026 was conducted on 30 August 2026 as part of the Civil Services Mains Examination. The optional subject consisted of two papers, with Paper 1 held in the forenoon session and Paper 2 in the afternoon session.

Each Mechanical Engineering optional paper carried 250 marks and had a duration of three hours. The papers followed a descriptive/conventional format and covered different areas of the prescribed Mechanical Engineering syllabus.

UPSC Mechanical Engineering Optional Question Paper 2026 Overview

The UPSC Mechanical Engineering optional examination consisted of two papers. The key details are given below:

Each paper contributes to the 500 marks allotted to the optional subject in the Mains written examination.

UPSC Mechanical Engineering Optional Paper 1

The UPSC Mechanical Engineering Optional Paper 1 was conducted from 9:00 AM to 12:00 Noon on 30 August 2026. It carried 250 marks and followed a descriptive/conventional format.

The major Mechanical Engineering areas covered under Paper 1 include:

• Engineering Mechanics

• Strength of Materials

• Theory of Machines

• Engineering Materials

• Manufacturing

• Industrial Engineering

These areas form part of the core topics covered under Paper 1 of the Mechanical Engineering optional subject.

UPSC Mechanical Engineering Optional Paper 2

The UPSC Mechanical Engineering Optional Paper 2 was conducted from 2:30 PM to 5:30 PM on 30 August 2026. Like Paper 1, it carried 250 marks and had a three-hour duration.

The major areas covered under Paper 2 include:

• Thermodynamics

• Fluid Mechanics

• Heat Transfer

• IC Engines

• Steam and Gas Turbines

• Refrigeration and Air Conditioning

• Related areas of Mechanical Engineering

Paper 2 also followed the descriptive/conventional format.

Download Mechanical Engineering Optional Paper PDF

Candidates can download the UPSC Mechanical Engineering Optional Question Paper 2026 PDFs for both papers from the table below. The question papers can be used to practise numerical and conceptual questions, understand the type of questions asked, improve time management and assess preparation.

How to Use the UPSC Mechanical Engineering Optional Question Paper 2026?

Candidates can use the UPSC Mechanical Engineering Optional Question Paper 2026 as a practice resource after covering the relevant syllabus areas. The papers can help candidates:

• Practise numerical and conceptual questions.

• Understand the type of questions asked in the examination.

• Attempt questions within the prescribed time.

• Identify topics that require additional revision.

• Assess their preparation against the examination requirements.

Solving both papers under a three-hour time limit can also help candidates practise according to the actual paper duration.

The UPSC Mechanical Engineering Optional Question Paper 2026 helps aspirants understand the exam pattern, practise numerical and conceptual questions, and assess their preparation. Solving both Paper 1 and Paper 2 within the prescribed time can also improve revision and time management.