Nigeria Correctional Service (NCoS) Past Questions and Answers

Are you preparing for the upcoming Nigeria Correctional Service (NCoS) recruitment screening exercise? If yes, then this guide and PDF compilation of Nigeria Correctional Service Past Questions and Answers will give you a strong advantage.
This material has been carefully compiled to help applicants understand the pattern of questions, identify frequently tested topics, and practice effectively before the main Computer-Based Test (CBT).

The Nigeria Correctional Service (formerly Nigeria Prisons Service) conducts recruitment examinations under the Civil Defence, Correctional, Fire and Immigration Services Board (CDCFIB). Hence, this past question pack combines both general and job-specific questions.

What the NCoS Recruitment Exam Looks Like

The NCoS recruitment exam usually consists of multiple-choice questions (MCQs) covering four major areas:

English Language
Mathematics / Quantitative Reasoning
General Knowledge / Current Affairs
Nigeria Correctional Service–Specific Questions

The test aims to evaluate the applicant’s reasoning, problem-solving ability, and general awareness about national and service-related issues.

Why You Need the NCoS Past Questions and Answers PDF

Practicing past questions gives you an upper hand. Here’s why this material is important:

✅ Familiarization: It helps you understand the structure and style of NCoS exams.
✅ Speed and Accuracy: Regular practice boosts your speed during CBT.
✅ Focus on Key Topics: Past questions reveal the recurring areas the board focuses on.
✅ Confidence Boost: Going into the exam knowing what to expect increases confidence.
✅ Guaranteed Edge: Many candidates who passed in past years testified to using this same pack.

Subjects Covered in the NCoS Past Questions

The NCoS recruitment questions are drawn from the following topics:

1. English Language

Vocabulary, antonyms, and synonyms
Comprehension passages
Sentence completion
Prepositions, tenses, and idioms
Word meanings and spelling corrections

2. Mathematics

Simple and compound interest
Ratio and proportion
Percentages and fractions
Basic algebra and arithmetic
Speed, distance, and time

3. General Knowledge & Current Affairs

Government and constitution
Nigerian leaders and history
Current events and geography
International organizations
Sports, science, and technology

4. Correctional Service–Specific Questions

History of the Nigeria Correctional Service
Duties and ranks
The Correctional Service Act, 2019
The difference between custodial and non-custodial centres
Security and discipline procedures

Sample Nigeria Correctional Service Past Questions and Answers

English Language

Choose the correct synonym of Abandon:
Answer: Forsake
Fill in the blank: “The prisoners were released ___ the President’s order.”
Answer: by
Antonym of Hostile:
Answer: Friendly

Mathematics

Simplify: 2x + 3 = 11. Find x.
Answer: x = 4
Find 15% of ₦4000.
Answer: ₦600
The average of 10, 20, and 30 is:
Answer: 20

General Knowledge / Current Affairs

Who is the current Comptroller-General of the Nigeria Correctional Service (as of 2025)?
Answer: Haliru Nababa
When was the Nigeria Prisons Service renamed Nigeria Correctional Service?
Answer: 2019
Who is the current Minister of Interior (2025)?
Answer: [To be updated with the current minister’s name]

Correctional Service–Specific

What are the two main arms of the Nigeria Correctional Service?
Answer: Custodial Service and Non-Custodial Service
The NCoS operates under which federal ministry?
Answer: Ministry of Interior
What is the function of a custodial centre?
Answer: To confine, reform, and rehabilitate inmates.
The Nigeria Correctional Service was established under which act?
Answer: The Nigeria Correctional Service Act, 2019

Also Read:

How to Download the Full NCoS Past Questions PDF

You can get the Nigeria Correctional Service Premium Past Questions and Answers PDF (Over 200 Questions + Answers) covering all the sections above.

This premium version includes:

✅ 50 English Language questions
✅ 50 Mathematics questions
✅ 50 General Knowledge questions
✅ 50 NCoS-specific and current affairs questions

👉 To download your copy, visit RecruitmentGurus.com.ng and search “NCoS Past Questions PDF” or use the direct download link on the post page.

Frequently Asked Questions (FAQs)

Is the Nigeria Correctional Service recruiting now?
Recruitment is usually conducted by the CDCFIB through the official portal cdcfib.career. Applicants are advised to regularly visit the website for updates.
How can I apply for NCoS recruitment?
When recruitment opens, visit the CDCFIB official portal, fill out the online form, upload the necessary credentials, and print the confirmation slip.
What is the NCoS recruitment closing date?
The closing date is usually stated on the official portal during registration. For 2025/2026, it will be announced soon — always check RecruitmentGurus.com.ng for updates.
What are the requirements to apply for NCoS recruitment?

Must be a Nigerian citizen
Possess valid ID card
Hold at least an SSCE, OND, NCE, or Bachelor’s degree, depending on the position
Be between 18–30 years old
Meet medical and physical fitness standards

How can I prepare effectively?
Use the NCoS Past Questions and Answers PDF, review your English and Mathematics, and keep up to date with national current affairs.

Final Words

Getting the Nigeria Correctional Service Past Questions and Answers PDF is one of the smartest steps to pass the upcoming recruitment examination. Don’t wait until it’s too late, begin your preparation now and join thousands of successful candidates who have benefited from this premium guide.

Download now from RecruitmentGurus.com.ng and get instant access to over 200 verified practice questions and answers compiled for your success.

Nigeria Correctional Service (NCoS) Past Questions and Answers PDF – Updated 2025/2026

What the NCoS Recruitment Exam Looks Like

Why You Need the NCoS Past Questions and Answers PDF