Nigerian Correctional Service (NCoS) Past Questions and Answers: The Nigerian Correctional Service (NCoS) Past Questions and Answers are now available on this page. You can download the updated version of the NCoS Recruitment Past Questions PDF and start preparing for the CBT screening examination immediately.

Overview of the Nigerian Correctional Service Past Questions

The NCoS recruitment exam is highly competitive, attracting thousands of applicants for a limited number of positions across various categories. To stand out, it’s essential to prepare with the right study materials, and verified past questions are among the most effective resources available. Using authentic past questions can help you:

• Understand the real exam structure

• Become familiar with repeated questions

• Improve your answer speed

• Boost your confidence before the exam

• Score higher than the average applicant

We have received numerous requests from candidates seeking the Past Questions and Answers for the Nigerian Correctional Service. Our team has compiled a fully updated and verified edition for 2025. It’s important to note that over 80% of the questions in the NCoS recruitment exam are either repeated or slightly modified from past questions.

Sample Nigerian Correctional Service (NCoS) Past Questions and Answers (Edition)

Here are sample questions from the updated study pack:

English Language

1. Choose the correct option:
The officer insisted that every applicant must remain ______ throughout the briefing.
A. attentive
B. attention
C. attending
D. attentively

✅ Answer: A. attentive

2. The synonym of “apprehend” is:
A. release
B. arrest
C. escape
D. argue

✅ Answer: B. arrest

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Mathematics

3. What is 15% of 260?
A. 34
B. 36
C. 39
D. 45

✅ Answer: C. 39

4. Solve: 3x – 6 = 27
A. x = 9
B. x = 10
C. x = 11
D. x = 12

✅ Answer: A. x = 11

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General Knowledge / Current Affairs

5. The Nigerian Correctional Service was formerly known as:
A. Nigerian Prison Service
B. Civil Defence Corps
C. Police Force
D. DSS

✅ Answer: A. Nigerian Prison Service

6. The NCoS Act was signed into law in:
A. 2015
B. 2017
C. 2019
D. 2021

✅ Answer: C. 2019

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Logical Reasoning

7. If all correctional officers wear uniforms, and James is a correctional officer, then James ______.
A. may wear a uniform
B. rarely wears a uniform
C. must wear a uniform
D. does not wear a uniform

✅ Answer: C. must wear a uniform

8. What number comes next? 6, 12, 18, 24, ___
A. 28
B. 30
C. 32
D. 36

✅ Answer: B. 30

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Security Awareness & Public Safety

9. The main function of the Nigerian Correctional Service is:
A. Traffic control
B. Imprisonment, reformation, and rehabilitation of offenders
C. Border protection
D. Firefighting

✅ Answer: B. Imprisonment, reformation, and rehabilitation of offenders

10. Which class of fire extinguisher is used for electrical fires?
A. Water
B. Foam
C. CO₂
D. Powder with water

✅ Answer: C. CO₂

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