Never used a computer for JAMB before? This guide covers exactly what happens — from when you sit down at the computer to when you click submit.
180
Questions Total
2 hrs
Time Allowed
4
Subjects
What Is JAMB CBT?
CBT stands for Computer-Based Test. Instead of writing answers on paper, you sit at a computer at an accredited CBT centre and answer all 180 questions by clicking on the correct option with a mouse.
JAMB has been running CBT since 2013. Every candidate sits the exam at a computer — there are no paper-based alternatives for UTME candidates. The questions are displayed one at a time on screen and you click your answer before moving to the next question.
You do not need to be a computer expert to pass CBT. The interface is simple and the main skills you need are reading questions carefully and clicking the right answer quickly. This guide shows you exactly what to expect.
What Happens at the CBT Centre — Step by Step 🪜
1
Biometric Verification at the Gate
When you arrive at the CBT centre, JAMB officials will verify your identity using your fingerprints and a photo check against your registration data. This is mandatory. If your biometric data does not match, you will not be allowed to sit the exam. Arrive with your original JAMB slip and a valid ID.
2
You Are Assigned a Computer
An invigilator will show you to a specific computer station. Do not sit at any computer other than the one assigned to you. The computers are numbered and each is linked to a specific candidate's profile.
3
Log In With Your Registration Number
The exam portal will be open on the screen. Enter your JAMB registration number and password as prompted. Your name and photo will appear on screen — confirm it is correct before proceeding. If the wrong name appears, call an invigilator immediately.
4
A Practice Session (Optional)
Some CBT centres begin with a brief practice or tutorial session to help you get familiar with the interface. Use this time — click through the navigation buttons, practise flagging a question, and make sure the mouse is working properly.
5
The Exam Begins — Timer Starts
Once the exam starts, a countdown timer appears at the top of the screen. It counts down from 2 hours (120 minutes). The first subject's questions load automatically. You answer each question by clicking one of the four options labelled A, B, C and D.
6
Navigate Between Questions
Use the "Next" and "Previous" buttons to move between questions. A panel on the side or bottom of the screen shows all question numbers — green means answered, grey means unanswered. You can jump to any question by clicking its number in the panel.
7
Flag Difficult Questions
If you are unsure of an answer, flag the question and move on. Come back to flagged questions at the end. Never waste time on one question — you have about 40 seconds per question on average.
8
Review and Submit
When the timer ends, the system submits automatically. If you finish early, use the remaining time to review flagged and unanswered questions. When you are ready, click the "Submit" button. You will see a confirmation prompt — click "Yes" to confirm. Your score appears immediately on screen.
What the JAMB CBT Screen Looks Like 🖥️
Top Bar
Shows your name, exam time remaining (countdown), question number out of 180, and the current subject name.
Question Area
The question text is displayed clearly in the centre of the screen. Read it carefully — some questions are long.
Answer Options
Four options (A, B, C, D) are listed below the question. Click any option to select it. Your selection is highlighted. You can change your answer any time before submitting by simply clicking a different option.
Navigation Panel
A numbered grid of all 180 questions is displayed on the side. Answered questions are marked green. Unanswered are grey. Flagged questions show a different colour. Click any number to jump directly to that question.
Navigation Buttons
"Previous" and "Next" buttons at the bottom let you move one question at a time. A "Flag" button marks a question for review.
Common CBT Mistakes & How to Avoid Them ⚠️
❌
Spending Too Long on One Question
The most common mistake. If you don't know an answer within 60 seconds, flag it and move on. Come back at the end. Students who get stuck lose time they needed for questions they actually know.
❌
Not Checking for Unanswered Questions
JAMB does not penalise wrong answers — so every blank question is a wasted opportunity. Before submitting, check your navigation panel for grey (unanswered) squares and fill them in, even if you have to guess.
❌
Misreading the Question
Many JAMB questions use phrases like "which of the following is NOT correct" or "EXCEPT". Missing the word NOT or EXCEPT makes you choose the wrong answer for a question you actually knew. Slow down and read every word.
❌
Submitting Before the Timer Ends
Some candidates panic and submit early thinking they cannot do better. Never submit if you still have time. Use every remaining minute to review flagged questions and check unanswered ones.
❌
Not Practising CBT Format Before Exam Day
Sitting a CBT exam for the first time on the actual day is a disadvantage. Practice on this platform to get used to reading questions on screen, selecting answers quickly, and managing your time.
Questions Per Subject & Time Strategy ⏱️
JAMB CBT has 180 questions spread across 4 subjects in 2 hours (120 minutes). That is an average of 40 seconds per question. Here is how the questions are distributed:
Use of English
60 questions~33 minutes
Use of English is the largest single block — 60 questions out of 180. It includes comprehension passages, lexis & structure, oral English, and summary. Don't spend more than 90 seconds on any one comprehension question.
Your second subject gets 40 questions. For Mathematics and Physics, calculation questions can take longer — budget more time here but do not exceed 2 minutes per question.
Subject 3
40 questions~27 minutes
Third subject — 40 questions. Aim to move at the same pace. If you are doing well here, you are buying time to revisit flagged questions from Subject 2.
Subject 4
40 questions~27 minutes
Last subject — 40 questions. Many candidates run short on time here. Attack it fast. Mark anything uncertain and come back.
Timing tip: Keep an eye on the clock after every 30 questions. If 30 questions have taken more than 20 minutes, you need to speed up. The goal is to finish all 180 questions with at least 10 minutes remaining to review.
What the Questions Actually Look Like 📝
Use of English — Comprehension
A long passage (around 200–400 words) is followed by 5–8 questions about its content, tone, and implied meaning. The passage only appears on screen — you cannot print it. Read the passage once quickly for overall meaning, then re-read as you answer each question.
Use of English — Lexis & Structure
Individual sentences with a blank or underlined word — you pick the best synonym, antonym, or grammatically correct option. These are fast questions — do not overthink them. Go with your first instinct after reading the full sentence.
Use of English — Oral English
Questions about stress patterns, rhyming sounds, and vowel sounds. Some candidates find these confusing. If oral English is a weak area, tackle it last within the Use of English section and use the process of elimination.
Mathematics / Physics
Calculation-based questions displayed with figures and equations. Some questions involve simple diagrams drawn with text — there are no interactive graphs. Have a rough working strategy since you cannot bring a calculator (calculators are not allowed). Do mental estimation to eliminate obviously wrong options before solving fully.
Biology / Chemistry
A mix of recall questions and some diagram-based questions (diagrams are displayed as images). For Biology, expect questions on diagrams of plant and animal cells, digestive systems, and reproductive systems. For Chemistry, expect equations and periodic table questions.
What to Bring on Exam Day 🎒
✅
JAMB Examination Slip
The printout from the JAMB portal showing your registration number, exam date, time and CBT centre address.
✅
Valid Government-Issued ID
National ID card, International Passport, Driver's Licence or Voter's Card. School ID alone is not accepted.
✅
Arrive Early
Be at the centre at least 30–45 minutes before your scheduled start time. Late candidates are turned away — no extensions, no refunds.
❌
Do Not Bring a Phone
Phones are not allowed inside the exam hall. Leave it outside or in a locker if available. Being found with a phone inside is treated as malpractice.
❌
Do Not Bring Notes or Books
No study materials of any kind are allowed. The exam hall is monitored by invigilators and CCTV cameras.
🚀
Practise CBT Right Now — Free
This platform replicates the JAMB CBT format exactly — timed questions, one at a time, with instant answers. The more you practise here, the more comfortable you will be on exam day.
Raise your hand immediately and alert a JAMB invigilator. Do not attempt to fix the computer yourself. JAMB has protocols for technical failures — your answers up to that point are saved automatically and you will typically be moved to a working computer with the remaining time transferred.
Yes — you can change your answer at any time before you move to the next question or before submitting. Simply click the new option you want to select and it will replace your previous selection. Your answer is only locked when you submit.
Accredited JAMB CBT centres are required to have backup power (generators or UPS). If power fails and the backup also fails, JAMB reschedules the affected candidates. Contact JAMB through the official portal if this happens to you.
No — JAMB does not deduct marks for wrong answers. Every correct answer earns you marks and every wrong or blank answer earns nothing. This means you should always guess rather than leave any question blank.
The JAMB CBT interface allows you to navigate between all 180 questions freely regardless of which subject they belong to. You are not locked into answering subjects in sequence — you can jump anywhere in the paper at any time.
Do not start the exam. Alert an invigilator immediately and show them your JAMB slip. The invigilator will contact JAMB support to resolve the identity issue. Starting the exam under the wrong candidate profile creates serious problems.
Use of English has 60 questions. Your three other subjects each have 40 questions — giving a total of 180 questions. Use of English is always the largest block and takes the most time for most candidates.
No — calculators of any kind are not permitted inside the exam hall. For Mathematics and Physics questions, you are expected to work mentally or through rough estimation. Practising mental calculation and approximation as part of your preparation will give you a significant time advantage on exam day.
Yes — this platform (Vantelum) replicates the JAMB CBT format exactly: timed sessions, one question at a time, real past questions, and instant answers. Practising here regularly is one of the best ways to build speed, get comfortable with the screen format, and reduce exam-day anxiety.