100+ Free GATE IN Practice Questions

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The discrete-time Fourier transform (DTFT) of x[n] = δ[n − k] is:

e^(−jωk)

δ(ω − k)

e^(jωk)

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2026 Statistics

Key Facts: GATE IN Exam

65 questions / 100 marks

GATE IN paper structure (3 hours)

gate2026.iitg.ac.in

15 + 13 + 72

GA + Engg Maths + Subject mark split

GATE 2026 Information Brochure

1/3 negative

MCQ negative marking; MSQ and NAT have none

GATE 2026 marking scheme

3 years

GATE score validity for admissions and PSU recruitment

GATE 2026 brochure

100

Free practice questions on this page

OpenExamPrep

GATE IN is a 3-hour, 65-question, 100-mark CBT covering 10 sections from General Aptitude through Sensors and Optical Instrumentation. MCQ negative marking is 1/3 (1-mark Q) or 2/3 (2-mark Q); MSQ and NAT have no negative marking. Scores are valid for 3 years and accepted by IITs, IISc, NITs, and most central PSUs.

Sample GATE IN Practice Questions

Try these sample questions to test your GATE IN exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Choose the word that is most nearly OPPOSITE in meaning to 'meticulous':

A.Careless

B.Thorough

C.Diligent

D.Precise

Explanation: 'Meticulous' means showing great attention to detail; being very careful and precise. Its antonym is 'careless', meaning lacking attention to detail. The other choices are synonyms of meticulous.

2If 1/3 of a tank is filled in 12 minutes, what fraction remains empty after 30 minutes at the same rate?

A.1/6

B.1/4

C.1/3

D.5/6

Explanation: Rate = (1/3)/12 = 1/36 per minute. In 30 minutes, filled = 30/36 = 5/6. Remaining empty = 1 − 5/6 = 1/6.

3A is taller than B but shorter than C. D is taller than C. Who is the tallest?

A.A

B.B

C.C

D.D

Explanation: Given B < A < C and C < D, the order from shortest to tallest is B, A, C, D. Therefore D is the tallest.

4The mean of five numbers is 18. If one number is removed and the mean becomes 16, what is the removed number?

A.26

B.20

C.22

D.24

Explanation: Sum of five numbers = 5 × 18 = 90. Sum of remaining four = 4 × 16 = 64. Removed number = 90 − 64 = 26.

5Choose the most appropriate word to complete the sentence: 'Despite the heavy rain, the cricket match was not ____.'

A.postponed

B.advanced

C.celebrated

D.extended

Explanation: Heavy rain typically causes a match to be postponed (delayed). 'Was not postponed' fits the contrastive 'Despite' construction — meaning the match still happened.

6If the cost price of 12 articles equals the selling price of 10 articles, the profit percentage is:

A.20%

B.16.67%

C.25%

D.10%

Explanation: Let CP per article = 1. Then 12 CP = 10 SP, so SP = 12/10 = 1.2. Profit = 0.2 on CP of 1, i.e. 20%.

7In a class of 60 students, 25 play cricket, 30 play football, and 10 play both. How many play neither?

A.15

B.5

C.10

D.20

Explanation: By inclusion–exclusion: cricket ∪ football = 25 + 30 − 10 = 45. Neither = 60 − 45 = 15.

8Identify the grammatically correct sentence:

A.Neither of the boys was present at the meeting.

B.Neither of the boys were present at the meeting.

C.Neither of the boys are present at the meeting.

D.Neither of the boys have been present at the meeting.

Explanation: 'Neither' is singular and takes a singular verb: 'was'. The phrase 'of the boys' is a prepositional modifier — the subject 'neither' governs the verb.

9If 'TRAIN' is coded as 'UQBHO', then 'PLANE' is coded as:

A.QKBMF

B.QMBOF

C.OKBMF

D.QKBNF

Explanation: Coding alternates +1 and −1 by position: T+1=U, R−1=Q, A+1=B, I−1=H, N+1=O. Apply to PLANE: P+1=Q, L−1=K, A+1=B, N−1=M, E+1=F → QKBMF.

10A pie chart shows household budget: Food 35%, Rent 25%, Transport 15%, Savings 10%, Others 15%. If the total is INR 40,000, what is spent on Rent?

A.INR 10,000

B.INR 14,000

C.INR 6,000

D.INR 8,000

Explanation: Rent = 25% of 40,000 = 0.25 × 40,000 = INR 10,000.

About the GATE IN Exam

GATE (Graduate Aptitude Test in Engineering) Instrumentation Engineering paper (paper code IN) is a national, computer-based examination conducted jointly by IISc and the seven older IITs on behalf of the National Coordination Board, MoE. GATE 2026 is organised by IIT Guwahati. The IN paper is used for admission to M.Tech, MS, and PhD programmes at IITs/IISc/NITs/IIITs and for recruitment by central PSUs such as IOCL, BHEL, GAIL, ONGC, NTPC, and BARC. The paper contains 65 questions worth 100 marks split as 15 General Aptitude + 13 Engineering Mathematics + 72 subject marks, in 3 hours.

Questions

100 scored questions

Time Limit

180 minutes (3 hours)

Passing Score

Annual qualifying cutoff (typically ~25/100 General); higher cutoffs for IIT/PSU admission

Exam Fee

INR 1000 (Female/SC/ST/PwD); INR 2000 (others) — regular window (IISc Bangalore and seven IITs (Bombay, Delhi, Guwahati, Kanpur, Kharagpur, Madras, Roorkee); GATE 2026 organising institute is IIT Guwahati)

GATE IN Exam Content Outline

15%

General Aptitude

Verbal, quantitative, analytical, and spatial aptitude — common section across all GATE papers

~13%

Engineering Mathematics

Linear algebra (matrices, eigenvalues), calculus, ODEs/PDEs, complex variables, probability & statistics, numerical methods, Laplace/Fourier transforms

~8%

Electrical Circuits

KVL/KCL, network theorems (Thevenin/Norton, superposition, max power transfer), transient & steady-state response, phasors, three-phase circuits

~8%

Signals and Systems

LTI systems, convolution, Fourier series/transform, Laplace transform, Z-transform, DTFT, sampling theorem

~10%

Control Systems

Block diagrams, transfer functions, time/frequency response, Routh-Hurwitz, Nyquist, root locus, Bode plots, lead-lag compensators, state-space, PID

~10%

Analog Electronics

Diodes, BJT and MOSFET amplifiers, op-amp circuits, oscillators, active filters, ADC/DAC, instrumentation amplifier

~9%

Digital Electronics

Combinational and sequential logic, flip-flops, counters, finite state machines, 8085 microprocessor, microcontroller basics

~7%

Measurements

Multimeters, AC/DC bridges, oscilloscopes (CRO and DSO), Q-meter, statistical analysis of data, systematic and random errors

~13%

Sensors and Industrial Instrumentation

Resistive/capacitive/inductive/piezoelectric/optical transducers; RTD, thermocouple, thermistor; pressure, flow (orifice/venturi/rotameter/Coriolis), level, strain gauge, load cell, ultrasonic, viscosity, humidity

~7%

Communication and Optical Instrumentation

AM, FM, PM; ASK, PSK, FSK; pulse modulation; sampling and quantization; optical sources (LED, laser); fiber optics

How to Pass the GATE IN Exam

What You Need to Know

Passing score: Annual qualifying cutoff (typically ~25/100 General); higher cutoffs for IIT/PSU admission
Exam length: 100 questions
Time limit: 180 minutes (3 hours)
Exam fee: INR 1000 (Female/SC/ST/PwD); INR 2000 (others) — regular window

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

GATE IN Study Tips from Top Performers

1Master the high-weight subject sections first — Sensors & Industrial Instrumentation (~13%) and Control Systems (~10%) together carry nearly a quarter of the paper

2Build deep Engineering Mathematics fluency early; linear algebra, Laplace/Fourier, and probability questions appear every year and are easy marks if practiced

3Solve previous 15 years of GATE IN papers under timed conditions — the question style and recurrent themes (op-amp circuits, bridge balancing, RTD/strain-gauge math, transfer functions) are highly predictable

4For NAT questions, practise unit consistency and rounding rules (typically 2-3 decimal places). Wrong-unit NATs are penalty-free in marking but lose the mark

5Take at least 10-15 full-length GATE IN mock tests in the final two months; mock analysis (topic-wise accuracy, speed) is more valuable than raw practice

6Memorise standard formulas: filter cutoff frequencies, op-amp gains, transfer function standard form, RTD/thermocouple Seebeck constants, gauge factor

Frequently Asked Questions

What is the GATE 2026 IN exam pattern?

GATE Instrumentation Engineering 2026 is a computer-based test of 3 hours with 65 questions for 100 marks. General Aptitude carries 15 marks, Engineering Mathematics approximately 13 marks, and the IN subject section approximately 72 marks. Questions are a mix of MCQ, MSQ, and NAT (Numerical Answer Type).

What is the marking scheme for GATE IN?

MCQs have negative marking: 1/3 mark deducted for a wrong 1-mark question and 2/3 mark for a wrong 2-mark question. MSQ and NAT questions have NO negative marking. Unanswered questions receive zero. NAT requires entering a numeric value using a virtual keypad.

Who conducts GATE 2026 and which institute is the organising body?

GATE is jointly conducted by IISc Bangalore and the seven older IITs (Bombay, Delhi, Guwahati, Kanpur, Kharagpur, Madras, Roorkee) on behalf of the National Coordination Board, Ministry of Education. GATE 2026 is organised by IIT Guwahati. The official portal is gate2026.iitg.ac.in.

Which PSUs and institutes accept the GATE IN score?

GATE IN scores are accepted for M.Tech/MS/PhD admission at IITs, IISc, NITs, IIITs, and many state universities. Major recruiting PSUs through GATE IN include IOCL, ONGC, NTPC, BHEL, GAIL, BPCL, HPCL, PowerGrid, NHPC, NHAI, BARC, and ISRO. Score validity is 3 years from result date.

What is the GATE 2026 application fee?

Regular registration fee for GATE 2026 is INR 1000 for Female, SC, ST, and PwD candidates and INR 2000 for all other candidates per paper. A late-fee window adds INR 500. Candidates can opt for up to two papers (combination must be from the allowed list). Foreign candidates pay USD 100/USD 50.

What is the GATE IN syllabus structure?

The IN syllabus covers 10 sections: General Aptitude (common), Engineering Mathematics, Electrical Circuits, Signals & Systems, Control Systems, Analog Electronics, Digital Electronics, Measurements, Sensors & Industrial Instrumentation, and Communication & Optical Instrumentation. Sensors and Control are the highest-weight subject sections.

When is GATE 2026 held?

GATE 2026 is scheduled across multiple sessions on Saturdays and Sundays in February 2026 (February 7, 8, 14, and 15, as announced by IIT Guwahati). Forenoon shift is 9:30 AM-12:30 PM; afternoon shift is 2:30 PM-5:30 PM. Results are typically declared by mid-to-late March.

100+ Free GATE IN Practice Questions

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