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OIL Senior Officer Free Mock Test
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OIL Senior Officer Syllabus 2026, Exam Pattern
OIL Senior Officer Syllabus 2026, Exam Pattern, Exam Date 2026
Detail Information about OIL has published notification 2026 for the recruitment of Senior Officer (Grade B & C) vacancies. Those Candidates who are Interested to the following vacancy and completed all Eligibility Criteria can read the Notification & Apply Online. In this page we provide the Complete Syllabus of this Recruitment with Latest Update Exam Pattern and the Exam Date also.
OIL Senior Officer Syllabus 2026 : Highlights
OIL Senior Officer Syllabus 2026
Reasoning :
1. Number Ranking
2. Figurative Classification
3. Classification
4. Figural Pattern
5. Cubes and Dice
6. Analogies
7. Non-Verbal Series
8. Coding-Decoding
9. Logical Venn Diagrams
10. Directions
11. Number, Ranking & Time Sequence
12. Blood Relations
13. Arrangements
14. Arithmetical Reasoning
15. Mathematical Operations
16. Venn diagrams
17. Number Series
English :
1. Antonyms
2. Synonyms
3. Idioms & Phrases
4. Vocabulary
5. Fill in the Blanks
6. One Word Substitution
7. Comprehension
8. Tenses
9. Transformation of Sentences
10. Active & Passive Voice
11. Direct & Indirect Speech
General Awareness :
1. International and National Organizations
2. Indian National Movement
3. Sports
4. Current Affairs – National and International
5. Abbreviations
6. General Policy
7. Science and Technology
8. Science – Inventions & Discoveries
9. Important Days
10. Indian History
11. Books and Authors
12. Awards and Honors
13. Capitals of India
14. Indian Economy
15. Budget and Five Year Plans
16. Countries and Capitals
Aptitude :
1. Races and Games
2. Numbers and Ages
3. Mixtures and Allegations
4. Mensuration
5. Permutations and Combinations
6. Problems on L.C.M and H.C.F
7. Pipes and Cisterns
8. Percentages
9. Simple Equations
10. Time and Work Partnership
11. Ratio and Proportion
12. Boats and Streams
13. Simple Interest
14. Problems on Numbers
15. Averages
16. Indices and Surds
17. Compound Interest
18. Volumes
19. Odd Man Out
20. Quadratic Equations
21. Probability
22. Profit and Loss
23. Time and Distance
24. Problems on Trains
25. Areas
Concerned Subjects :
Mechanical :
1. Theory of Machines
2. Machine Design
3. Thermodynamics
4. Heat and Mass Transfer
5. Fluid Mechanics
6. Strength of Materials
7. Turbomachinery
8. Automobile Engineering
9. Production Processes
10. Industrial Engineering
11. Refrigeration and Air Conditioning
Electronics and Communication Engineering :
Networks, Signals, and Systems :-
Circuit analysis: Node and mesh analysis, superposition, Thevenin’s theorem, Norton’s theorem, reciprocity. Sinusoidal steady state analysis: phasors, complex power, maximum power transfer. Time and frequency domain analysis of linear circuits: RL, RC, and RLC circuits, solution of network equations using Laplace transform. Linear 2-port network parameters, wye-delta transformation.
Continuous-time signals: Fourier series and Fourier transform, sampling theorem and applications.
Discrete-time signals: DTFT, DFT, z-transform, discrete-time processing of continuous-time signals. LTI systems: definition and properties, causality, stability, impulse response, convolution, poles and zeroes, frequency response, group delay, phase delay.
Electronic Devices :-
Energy bands in intrinsic and extrinsic semiconductors, equilibrium carrier concentration, direct and indirect band-gap semiconductors.
Carrier transport: diffusion current, drift current, mobility and resistivity, generation and recombination of carriers, Poisson and continuity equations.
P-N junction, Zener diode, BJT, MOS capacitor, MOSFET, LED, photo diode and solar cell.
Analog Circuits :-
Diode circuits: clipping, clamping, and rectifiers.
BJT and MOSFET amplifiers: biasing, ac coupling, small signal analysis, frequency response. Current mirrors and differential amplifiers.
Op-amp circuits: Amplifiers, summers, differentiators, integrators, active filters, Schmitt trigger,s and oscillators.
Digital Circuits :-
Number representations: binary, integer and floating-point- numbers. Combinatorial circuits: Boolean algebra, minimization of functions using Boolean identities and Karnaugh map, logic gates and their static CMOS implementations, arithmetic circuits, code converters, multiplexers, decoders.
Sequential circuits: latches and flip-flops, counters, shift-registers, finite state machines, propagation delay, setup and hold time, critical path delay.
Data converters: sample and hold circuits, ADCs, and DACs.
Semiconductor memories: ROM, SRAM, DRAM.
Computer organization: Machine instructions and addressing modes, ALU, data-path, and control unit, instruction pipelining.
Control Systems :-
Basic control system components: Feedback principle; Transfer function; Block diagram representation; Signal flow graph; Transient and steady-state analysis of LTI systems; Frequency response; Routh-Hurwitz and Nyquist stability criteria; Bode and root-locus plots; Lag, lead and lag- lead compensation; State variable model and solution of state equation of LTI systems.
Communications :-
Random processes: autocorrelation and power spectral density, properties of white noise, filtering of random signals through LTI systems.
Analog communications: amplitude modulation and demodulation, angle modulation and demodulation, spectra of AM and FM, super heterodyne receivers.
Information theory: entropy, mutual information, and channel capacity theorem.
Digital communications: PCM, DPCM, digital modulation schemes (ASK, PSK, FSK, QAM), bandwidth, inter-symbol interference, MAP, ML detection, matched filter receiver, SNR, and BER.
Fundamentals of error correction, Hamming codes, and CRC.
Electromagnetics :-
Maxwell’s equations: differential and integral forms and their interpretation, boundary conditions, wave equation, Poynting vector.
Plane waves and properties: reflection and refraction, polarization, phase and group velocity, propagation through various media, skin depth.
Transmission lines: equations, characteristic impedance, impedance matching, impedance transformation, S-parameters, Smith chart.
Rectangular and circular waveguides, light propagation in optical fibers, dipole and monopole antennas, and linear antenna arrays.
OIL Senior Officer Exam Pattern 2026
Duration : 90 Minutes
OIL Senior Officer Syllabus 2026 : Highlights
| Organization Name | Oil India Limited (OIL) |
| Name of the Positions | Senior Officer (Mechanical, Electronics & Communication) |
| Total no. of vacancies | Notified Soon |
| Application Mode | Online |
| Category | Syllabus and Exam Pattern |
| Exam Date 2026 | Notified Soon |
| Job Location | All Over India |
| Official Website | www.oil-india.com |
OIL Senior Officer Syllabus 2026
Reasoning :
1. Number Ranking
2. Figurative Classification
3. Classification
4. Figural Pattern
5. Cubes and Dice
6. Analogies
7. Non-Verbal Series
8. Coding-Decoding
9. Logical Venn Diagrams
10. Directions
11. Number, Ranking & Time Sequence
12. Blood Relations
13. Arrangements
14. Arithmetical Reasoning
15. Mathematical Operations
16. Venn diagrams
17. Number Series
English :
1. Antonyms
2. Synonyms
3. Idioms & Phrases
4. Vocabulary
5. Fill in the Blanks
6. One Word Substitution
7. Comprehension
8. Tenses
9. Transformation of Sentences
10. Active & Passive Voice
11. Direct & Indirect Speech
General Awareness :
1. International and National Organizations
2. Indian National Movement
3. Sports
4. Current Affairs – National and International
5. Abbreviations
6. General Policy
7. Science and Technology
8. Science – Inventions & Discoveries
9. Important Days
10. Indian History
11. Books and Authors
12. Awards and Honors
13. Capitals of India
14. Indian Economy
15. Budget and Five Year Plans
16. Countries and Capitals
Aptitude :
1. Races and Games
2. Numbers and Ages
3. Mixtures and Allegations
4. Mensuration
5. Permutations and Combinations
6. Problems on L.C.M and H.C.F
7. Pipes and Cisterns
8. Percentages
9. Simple Equations
10. Time and Work Partnership
11. Ratio and Proportion
12. Boats and Streams
13. Simple Interest
14. Problems on Numbers
15. Averages
16. Indices and Surds
17. Compound Interest
18. Volumes
19. Odd Man Out
20. Quadratic Equations
21. Probability
22. Profit and Loss
23. Time and Distance
24. Problems on Trains
25. Areas
Concerned Subjects :
Mechanical :
1. Theory of Machines
2. Machine Design
3. Thermodynamics
4. Heat and Mass Transfer
5. Fluid Mechanics
6. Strength of Materials
7. Turbomachinery
8. Automobile Engineering
9. Production Processes
10. Industrial Engineering
11. Refrigeration and Air Conditioning
Electronics and Communication Engineering :
Networks, Signals, and Systems :-
Circuit analysis: Node and mesh analysis, superposition, Thevenin’s theorem, Norton’s theorem, reciprocity. Sinusoidal steady state analysis: phasors, complex power, maximum power transfer. Time and frequency domain analysis of linear circuits: RL, RC, and RLC circuits, solution of network equations using Laplace transform. Linear 2-port network parameters, wye-delta transformation.
Continuous-time signals: Fourier series and Fourier transform, sampling theorem and applications.
Discrete-time signals: DTFT, DFT, z-transform, discrete-time processing of continuous-time signals. LTI systems: definition and properties, causality, stability, impulse response, convolution, poles and zeroes, frequency response, group delay, phase delay.
Electronic Devices :-
Energy bands in intrinsic and extrinsic semiconductors, equilibrium carrier concentration, direct and indirect band-gap semiconductors.
Carrier transport: diffusion current, drift current, mobility and resistivity, generation and recombination of carriers, Poisson and continuity equations.
P-N junction, Zener diode, BJT, MOS capacitor, MOSFET, LED, photo diode and solar cell.
Analog Circuits :-
Diode circuits: clipping, clamping, and rectifiers.
BJT and MOSFET amplifiers: biasing, ac coupling, small signal analysis, frequency response. Current mirrors and differential amplifiers.
Op-amp circuits: Amplifiers, summers, differentiators, integrators, active filters, Schmitt trigger,s and oscillators.
Digital Circuits :-
Number representations: binary, integer and floating-point- numbers. Combinatorial circuits: Boolean algebra, minimization of functions using Boolean identities and Karnaugh map, logic gates and their static CMOS implementations, arithmetic circuits, code converters, multiplexers, decoders.
Sequential circuits: latches and flip-flops, counters, shift-registers, finite state machines, propagation delay, setup and hold time, critical path delay.
Data converters: sample and hold circuits, ADCs, and DACs.
Semiconductor memories: ROM, SRAM, DRAM.
Computer organization: Machine instructions and addressing modes, ALU, data-path, and control unit, instruction pipelining.
Control Systems :-
Basic control system components: Feedback principle; Transfer function; Block diagram representation; Signal flow graph; Transient and steady-state analysis of LTI systems; Frequency response; Routh-Hurwitz and Nyquist stability criteria; Bode and root-locus plots; Lag, lead and lag- lead compensation; State variable model and solution of state equation of LTI systems.
Communications :-
Random processes: autocorrelation and power spectral density, properties of white noise, filtering of random signals through LTI systems.
Analog communications: amplitude modulation and demodulation, angle modulation and demodulation, spectra of AM and FM, super heterodyne receivers.
Information theory: entropy, mutual information, and channel capacity theorem.
Digital communications: PCM, DPCM, digital modulation schemes (ASK, PSK, FSK, QAM), bandwidth, inter-symbol interference, MAP, ML detection, matched filter receiver, SNR, and BER.
Fundamentals of error correction, Hamming codes, and CRC.
Electromagnetics :-
Maxwell’s equations: differential and integral forms and their interpretation, boundary conditions, wave equation, Poynting vector.
Plane waves and properties: reflection and refraction, polarization, phase and group velocity, propagation through various media, skin depth.
Transmission lines: equations, characteristic impedance, impedance matching, impedance transformation, S-parameters, Smith chart.
Rectangular and circular waveguides, light propagation in optical fibers, dipole and monopole antennas, and linear antenna arrays.
OIL Senior Officer Exam Pattern 2026
Duration : 90 Minutes
| S.No | Subject | No.of Question | Marks |
| 1 | General Awareness | 10 | 10 |
| 2 | English | 10 | 10 |
| 3 | Aptitude | 15 | 15 |
| 4 | Reasoning | 15 | 15 |
| 5 | Concerned Subjects | 50 | 50 |
| Total | 100 | 100 |
Exam Date : Notified Soon
Starting Date of Application Form : Notified Soon
Last Date of Application Form : Notified Soon
OIL Senior Officer Exam Free Online Test Series
Crack OIL Senior Officer exam 2026 with the help of Online Mock test Series or Free Mock Test. Every Sample Paper in OIL Exam has a designated weightage so do not miss out any Paper. Preprare and Practice Mock for OIL Grade B exam and check your test scores.
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3. 1500 (+) Current Affairs MCQ with Answer PDF in English.
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Combo - 5 (English)
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2. Question Bank - 2000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in English.
4. 1000 (+) GK MCQ with Answer PDF Book in English.
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3. 1500 (+) Current Affairs MCQ with Answer PDF in English.
4. 1000 (+) GK MCQ with Answer PDF Book in English.
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Combo - 6 (English)
1. Online Mock Test Series in English = 30 Tests.
2. Question Bank - 3000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in English.
4. 1000 (+) GK MCQ with Answer PDF Book in English.
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3. 1500 (+) Current Affairs MCQ with Answer PDF in English.
4. 1000 (+) GK MCQ with Answer PDF Book in English.
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Combo - 7 (Hindi)
1. Online Mock Test Series in Hindi = 30 Tests.
2. Question Bank - 4000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
5. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
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Combo - 8 (English)
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2. Question Bank - 4000 Questions with Answer.
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4. 1500 (+) Current Affairs MCQ with Answer PDF in English.
5. 1000 (+) GK MCQ with Answer PDF Book in English.
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4. 1500 (+) Current Affairs MCQ with Answer PDF in English.
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5. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
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Combo - 10 (English)
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3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of OIL Senior Officer (1000 MCQ) PDF Format in English.
5. 1500 (+) Current Affairs MCQ with Answer PDF in English.
6. 1000 (+) GK MCQ with Answer PDF Book in English.
2. Question Bank - 4000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of OIL Senior Officer (1000 MCQ) PDF Format in English.
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FAQs
Oil Senior Officer 2026 Free Mock Test Frequently Asked Questions (FAQ's)
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