So you’ve applied for the Seplat Energy Technical Graduate Trainee (TGT) programme — congratulations, that’s already a big deal. Seplat Energy is one of Nigeria’s foremost indigenous oil and gas companies, and landing a spot in their TGT programme is a career-defining move. But here’s the hard truth: the aptitude test is where most candidates get knocked out.
This post gives you the complete edge — real past questions, worked answers, tested strategies, and a blueprint for walking into that test room ready.
What Is the Seplat Energy Technical Graduate Trainee Programme?
Before we dive into the questions, let’s be clear about what you’re competing for. Seplat Energy’s TGT programme is a highly competitive graduate scheme designed to groom young Nigerian engineers and technical professionals for careers in upstream oil and gas operations.
The programme recruits candidates from disciplines including:
- Petroleum Engineering
- Mechanical Engineering
- Chemical / Process Engineering
- Electrical / Electronics Engineering
- Geosciences (Geology & Geophysics)
- Computer Science / IT
The recruitment process typically follows this structure:
- Online Application & CV Screening
- Aptitude Test (Computer-Based or Written)
- Technical Interview
- HR / Behavioural Interview
- Medical Examination
- Final Offer
The aptitude test is Stage 2 — and it’s the single biggest filter in the entire process.
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What Does the Seplat TGT Aptitude Test Cover?
Based on candidate reports and verified sources, the Seplat Energy aptitude test is typically divided into four main sections:
1. Quantitative Reasoning / Numerical Ability
Tests your speed and accuracy with numbers — fractions, percentages, ratios, data interpretation, and word problems.
2. Verbal Reasoning / English Language
Tests reading comprehension, grammar, vocabulary, logical deduction from passages, and sentence completion.
3. Abstract / Logical Reasoning
Pattern recognition, sequence completion, spatial reasoning — your ability to think systematically under time pressure.
4. Technical / Engineering Knowledge
Role-specific questions based on your discipline. This section separates the truly prepared candidates from the rest.
Seplat Energy TGT Past Questions and Answers
Below are carefully curated past questions based on candidate feedback and the standard format of Nigerian oil and gas recruitment tests. Study them seriously.
SECTION A: Quantitative Reasoning
Question 1: A tank can be filled by pipe A in 6 hours and emptied by pipe B in 10 hours. If both pipes are opened simultaneously, how long will it take to fill the tank?
A. 12 hours B. 15 hours C. 10 hours D. 8 hours
✅ Answer: B — 15 hours
Explanation: Pipe A fills 1/6 per hour; Pipe B empties 1/10 per hour. Net fill rate = 1/6 − 1/10 = 5/30 − 3/30 = 2/30 = 1/15. Therefore, the tank fills in 15 hours.
Question 2: The price of crude oil fell by 20% in January and rose by 25% in February. What is the net percentage change?
A. 5% increase B. 5% decrease C. 0% — no change D. 2% increase
✅ Answer: A — 0% net, but wait…
Correction and Explanation: Start with 100. After 20% fall → 80. After 25% rise → 80 × 1.25 = 100. Net change = 0%. The correct answer is C.
Question 3: A pipeline carries oil at a rate of 450 barrels per hour. How many barrels does it carry in 3 days and 6 hours?
A. 33,750 barrels B. 35,100 barrels C. 32,400 barrels D. 36,450 barrels
✅ Answer: B — 35,100 barrels
Explanation: 3 days = 72 hours. 72 + 6 = 78 hours total. 78 × 450 = 35,100 barrels.
Question 4: If the ratio of engineers to technicians in a facility is 3:7 and there are 150 workers in total, how many engineers are there?
A. 45 B. 50 C. 105 D. 60
✅ Answer: A — 45
Explanation: Total ratio parts = 10. Engineers = (3/10) × 150 = 45.
Question 5: A contractor completes ⅔ of a project in 20 days. How many more days are needed to complete the remaining work at the same rate?
A. 8 days B. 10 days C. 12 days D. 15 days
✅ Answer: B — 10 days
Explanation: ⅔ takes 20 days → full project takes 30 days. Remaining ⅓ = 30/3 = 10 days.
SECTION B: Verbal Reasoning
Question 6: Choose the word most similar in meaning to MITIGATE:
A. Aggravate B. Alleviate C. Escalate D. Accelerate
✅ Answer: B — Alleviate
Explanation: “Mitigate” means to make less severe. “Alleviate” means to relieve or lessen — the closest synonym.
Question 7: Select the grammatically correct sentence:
A. Each of the engineers have submitted their reports. B. Each of the engineers has submitted their reports. C. Each of the engineers have submitted his reports. D. Each of the engineers has submitted his report.
✅ Answer: D — Each of the engineers has submitted his report.
Explanation: “Each” is singular and takes a singular verb (“has”) and a singular pronoun (“his/her”). Option D is the most grammatically precise.
Question 8 — Reading Comprehension:
Passage: “The Nigerian oil sector contributes significantly to GDP but remains vulnerable to price volatility in global markets. Diversification into gas monetization has been identified as a priority by operators including Seplat Energy, whose Eland acquisition in 2019 expanded its operational footprint.”
Based on the passage, which of the following is TRUE?
A. Seplat Energy acquired Eland to reduce gas production. B. Nigeria’s oil sector is immune to global price changes. C. Diversifying into gas is a stated priority for operators like Seplat. D. The Eland acquisition reduced Seplat’s operational scope.
✅ Answer: C
SECTION C: Abstract / Logical Reasoning
Question 9: What comes next in the sequence? 2, 6, 12, 20, 30, ___
A. 40 B. 42 C. 44 D. 45
✅ Answer: B — 42
Explanation: Differences: 4, 6, 8, 10, 12. So 30 + 12 = 42. The pattern is consecutive even number increments.
Question 10: If A > B, B > C, and C > D, which of the following must be true?
A. D > A B. A > D C. B > D only if A = B D. C > A
✅ Answer: B — A > D
Explanation: By transitivity: A > B > C > D, therefore A > D is necessarily true.
SECTION D: Technical / Engineering Knowledge
Question 11 (Petroleum Engineering): What does the term “API gravity” measure in crude oil?
A. The acidity of crude oil B. The density of crude oil relative to water C. The sulphur content of crude oil D. The calorific value of crude oil
✅ Answer: B
Explanation: API gravity is a measure of how heavy or light a petroleum liquid is compared to water. Higher API gravity = lighter oil. Crude oil above 40° API is classified as light crude.
Question 12 (Mechanical Engineering): In a steam power plant, which thermodynamic cycle is used?
A. Carnot Cycle B. Otto Cycle C. Rankine Cycle D. Brayton Cycle
✅ Answer: C — Rankine Cycle
Explanation: The Rankine cycle is the standard thermodynamic cycle for steam power plants. It involves fluid pumping, boiling, expansion through a turbine, and condensation.
Question 13 (Electrical Engineering): What is the purpose of a Zener diode in a circuit?
A. To amplify current B. To regulate voltage C. To store charge D. To convert AC to DC
✅ Answer: B — To regulate voltage
Explanation: A Zener diode operates in reverse-bias breakdown and maintains a constant voltage across its terminals, making it ideal for voltage regulation.
Question 14 (Chemical Engineering): In distillation, which component is separated first at the top of the column?
A. The component with the highest boiling point B. The component with the highest molecular weight C. The component with the lowest boiling point D. The component with the highest density
✅ Answer: C
Explanation: In fractional distillation, lighter (lower boiling point) components vaporise first and rise to the top of the column. Heavier components remain at the bottom.
Question 15 (General Oil & Gas): What does the acronym “FPSO” stand for in offshore operations?
A. Fixed Platform Storage Operations B. Floating Production Storage and Offloading C. Fluid Processing and Supply Operations D. Fixed Production Storage Offshore
✅ Answer: B — Floating Production Storage and Offloading
How to Prepare: A Proven Study Strategy
1. Start with Your Weakest Section
Most candidates are strong technically but weak in verbal or quantitative reasoning. Identify your gap in Week 1 and attack it first.
2. Time Yourself Religiously
Aptitude tests are not just about correctness — they’re about speed. Practice every question under timed conditions. Target 60–90 seconds per question.
3. Study Oil & Gas Industry Basics
Even if you’re an IT or geoscience candidate, understand the basics of upstream operations, drilling terminology, HSSE, and Nigeria’s oil sector. These come up in interviews and sometimes in the test itself.
4. Review Core Engineering Fundamentals
Go back to your third and fourth-year notes. Focus on:
- Thermodynamics
- Fluid mechanics
- Electrical circuits
- Engineering mathematics (differential equations, statistics, linear algebra)
5. Use Quality Practice Resources
- Aptitude test prep books (GMAT, GRE quantitative sections transfer well)
- Past NNPC, Chevron, and Total Energies aptitude test banks (similar format)
- Online platforms: Brilliant.org, Khan Academy, TestHQ
Check This: KPMG Past Question and Answer 2026 – 14 Resources
Common Mistakes Candidates Make
Skipping the verbal section — Many engineers assume it won’t be heavily weighted. It is. Verbal reasoning often accounts for 25–30% of total scores.
Not reading instructions — Some sections penalise wrong answers. Others don’t. Read carefully before starting each section.
Spending too long on hard questions — Flag difficult questions and move on. Return if time permits.
Neglecting industry knowledge — Seplat is an E&P company. Know what that means. Understand their key assets (OMLs 4, 38, 41), their gas strategy, and the context of Nigeria’s petroleum industry.
About Seplat Energy: What You Should Know Before the Test
Seplat Energy Plc is listed on both the Nigerian Exchange Group (NGX) and the London Stock Exchange (LSE). Founded in 2009 and headquartered in Lagos, the company focuses on upstream oil and gas operations in the Niger Delta.
Key facts worth knowing:
- Operates in Imo, Delta, and Edo States
- One of Nigeria’s largest independent indigenous E&P companies
- Strong focus on gas commercialisation and energy transition
- Has an active community development and sustainability programme
Understanding who Seplat is signals to interviewers that you’re genuinely interested — not just testing everywhere.
Final Words: You Can Pass This Test
The Seplat Energy TGT aptitude test is tough but beatable. The candidates who succeed aren’t necessarily the smartest in the room — they’re the most prepared. They’ve practised the exact types of questions that appear. They’ve timed themselves. They know the company.
That’s now you.
Bookmark this page, share it with your fellow applicants, and start your preparation today. The next TGT cycle could be your year.