GATE GG study guide
GATE GG · Work through your exam, one topic at a time.
GATE 2026 (Graduate Aptitude Test in Engineering) is a national-level examination that assesses candidates' comprehensive understanding of undergraduate-level subjects in Engineering/Technology/Science/Commerce/Arts/Architecture/Humanities. It is conducted by IISc and all IITs on behalf of the National Coordination Board, Department of Higher Education, Ministry of Education, Government of India, with IIT Guwahati as the Organizing Institute for 2026. Qualifying candidates can seek admission, with possible financial assistance, to Master's, Direct Doctoral and Doctoral programs in MoE-supported and other government institutions; some colleges also use GATE scores for postgraduate admission without MoE scholarship, and several Public Sector Undertakings use GATE scores for recruitment. GATE 2026 has 30 test papers, full and sectional, and a candidate may appear for one or two papers, subject to selected two-paper combinations. Topics on this exam: Engineering Sciences (XE) and Energy Science (XE-I) - new sectional paper within XE. The GATE GG study guide has 2 sections and about 778 words.
01Engineering Sciences (XE): Core Quantitative Reasoning Across Engineering Disciplines
Engineering Sciences (XE) tests whether you can translate a physical engineering problem into a defensible mathematical model and then extract a numerical answer. The paper combines a compulsory engineering-mathematics core with sectional engineering-science subjects; XE-I, Energy Science, inherits the same demand for correct assumptions, units, and boundary conditions. Expect questions that mix linear algebra, calculus, differential equations, complex variables, probability, numerical methods, fluid mechanics, solid mechanics, thermodynamics, and materials behaviour. Convert every quantity to a consistent unit system before calculating; check dimensional homogeneity in each term.
371 words, about 2 min02Energy Science (XE-I): Conversion, Resources, and System Limits
Energy Science (XE-I) tests quantitative reasoning about energy resources, conversion chains, storage, and system constraints. Questions commonly combine thermodynamics, power cycles, solar and wind resources, biofuels, fuel cells, and efficiency/emissions accounting. The section rewards clear reference choices-per square metre, per kilogram, per year, or per kWh-and careful conversion between power (kW) and energy (kWh). Apply the first law to conversion devices; use the second law to set quality limits and identify irreversibility.
407 words, about 2 min