CDCFIB Board Examination: What to Study and How to Prepare (With Practice Questions)

The Civil Defence, Correctional, Fire, and Immigration Services Board (CDCFIB) has announced preparations for its upcoming online recruitment examination. Thousands of applicants are eager to know what to study and how best to prepare for this computer-based test.

What to Expect in the CDCFIB Online Examination

The online test will assess candidates’ competence in key areas including:

• English Language and Communication Skills
• General Knowledge / Current Affairs
• Quantitative and Numerical Reasoning
• Basic ICT and Logical Thinking

CDCFIB Board Sample Practice Questions

We’ve prepared a full list of practice questions with answers designed to help you perform well in the upcoming exam.
Questions are drawn from English, General Studies, and Reasoning — similar to actual CDCFIB test formats.

Study Tips for CDCFIB Board Online Exam

1. Start Early: Don’t wait for the shortlist; begin revising English and General Knowledge now.
2. Use Verified Past Questions: Study questions from *Civil Defence, **Fire Service, and *Immigration exams as they follow the same format.
3. Stay Updated: Always check the official CDCFIB recruitment portal for new information and test instructions.
4. Practice Online: Familiarize yourself with computer-based testing platforms.
5. Be Calm and Confident: Manage your time wisely and read each question carefully during the test.

CDCFIB online exam practice pack (50 questions):
✅ Each question has A–D options.
✅ The correct answer is marked with *an asterisk ().

CDCFiB Online Examination Practice Questions and Answers

SECTION A — ENGLISH LANGUAGE

1️⃣ The manager gave a concise report at the meeting.
A. Long
*B. *Brief**
C. Detailed
D. Elaborate

2️⃣ His actions were deliberate.
*A. *Accidental**
B. Intentional
C. Planned
D. Careful

3️⃣ If he __ harder, he would have passed the test.
A. Works
*B. *Had worked**
C. Working
D. Have worked

4️⃣ Identify the correct sentence.
A. He don’t know the answer
B. He didn’t knew the answer
*C. *He doesn’t know the answer**
D. He not know the answer

5️⃣ To “bury the hatchet” means —
A. Hide the weapon
*B. *Make peace**
C. Start a fight
D. Forget something

6️⃣ The plural of “criterion” is —
*A. *Criteria**
B. Criterions
C. Criterias
D. Criterion

7️⃣ He is taller __ his brother.
A. To
*B. *Than**
C. From
D. With

8️⃣ Choose the correct spelling.
*A. *Occurrence**
B. Occurence
C. Occurencee
D. Ocurrence

9️⃣ The teacher said we should hand __ our assignments.
*A. *In**
B. On
C. Over
D. Out

🔟 The judge found him __ of the crime.
*A. *Guilty**
B. Guilt
C. Guiltless
D. Guilted

SECTION B — MATHEMATICS & QUANTITATIVE REASONING

11️⃣ What is 25% of 240?
A. 48
*B. *60**
C. 50
D. 80

12️⃣ Simplify: 8 + 2 × 5 – 6 ÷ 3 = ?
A. 16
*B. *15**
C. 18
D. 20

13️⃣ If a car travels 180 km in 3 hours, its average speed is —
*A. *60 km/h**
B. 30 km/h
C. 90 km/h
D. 45 km/h

14️⃣ Find the simple interest on ₦5000 at 10% per annum for 2 years.
A. ₦800
*B. *₦1000**
C. ₦1200
D. ₦1500

15️⃣ The mean of 10, 20, 30, 40, 50 is —
A. 25
*B. *30**
C. 35
D. 40

16️⃣ What is 2/5 of ₦2,500?
A. ₦900
B. ₦800
*C. *₦1,000**
D. ₦1,200

17️⃣ Convert 0.75 to a fraction.
A. 1/3
*B. *3/4**
C. 2/3
D. 4/5

18️⃣ If 5x = 40, find x.
*A. *8**
B. 5
C. 7
D. 6

19️⃣ The perimeter of a square is 40 cm. Find its area.
A. 80 cm²
*B. *100 cm²**
C. 160 cm²
D. 200 cm²

20️⃣ A man bought a phone for ₦80,000 and sold it for ₦100,000. Find his profit percentage.
A. 15%
*B. *25%**
C. 20%
D. 30%

SECTION C — CURRENT AFFAIRS / GENERAL KNOWLEDGE

21️⃣ Who is the current President of Nigeria?
*A. *Bola Ahmed Tinubu**
B. Muhammadu Buhari
C. Goodluck Jonathan
D. Atiku Abubakar

22️⃣ The capital of Oyo State is —
A. Iseyin
*B. *Ibadan**
C. Ogbomoso
D. Oyo

23️⃣ The currency of Ghana is —
A. Pound
*B. *Cedi**
C. Dollar
D. Franc

24️⃣ The body responsible for conducting elections in Nigeria is —
*A. *INEC**
B. ICPC
C. EFCC
D. NDLEA

25️⃣ Which of the following agencies is under the CDCFIB?
A. FRSC
*B. *Nigeria Immigration Service**
C. NDLEA
D. NISER

26️⃣ The current Commandant General of NSCDC (as of 2025) is —
*A. *Dr. Ahmed Audi**
B. Abdullahi Gana
C. Akinlade Fatai
D. Bello Bode

27️⃣ Nigeria became a republic in —
A. 1960
*B. *1963**
C. 1979
D. 1999

28️⃣ The green color on Nigeria’s flag stands for —
*A. *Agriculture**
B. Peace
C. Unity
D. Justice

29️⃣ Who is the Minister of Interior (supervising CDCFIB)?
A. Lai Mohammed
*B. *Olubunmi Tunji-Ojo**
C. Festus Keyamo
D. Nyesom Wike

30️⃣ The Nigerian Correctional Service was formerly called —
*A. *Nigerian Prisons Service**
B. Federal Prison Department
C. Prison Guards
D. Correctional Guards

SECTION D — LOGICAL & VERBAL REASONING

31️⃣ If all flowers are plants and some plants are trees, which is true?
A. All trees are flowers
B. Some trees are flowers
*C. *Some plants are flowers**
D. No trees are plants

32️⃣ Which number completes the series: 2, 4, 8, 16, _ ?
A. 24
*B. *32**
C. 20
D. 30

33️⃣ Choose the odd one out:
A. Lion
B. Tiger
*C. *Goat**
D. Leopard

34️⃣ If MONDAY is coded as 135246, what is the code for SUNDAY?
A. 613245
*B. *619246**
C. 639241
D. 635246

35️⃣ Find the next number in the pattern: 5, 10, 20, 40, _
A. 60
*B. *80**
C. 100
D. 120

36️⃣ A train travels at 90 km/h for 2 hours and 45 minutes. How far does it travel?
A. 200 km
*B. *247.5 km**
C. 220 km
D. 300 km

37️⃣ Which of these does not belong?
A. Square
B. Rectangle
*C. *Triangle**
D. Parallelogram

38️⃣ Complete the analogy:
Book is to Reading as Knife is to __
*A. *Cutting**
B. Eating
C. Cooking
D. Drawing

39️⃣ If 6 men can build a wall in 10 days, how many days will 3 men take?
A. 5 days
*B. *20 days**
C. 15 days
D. 12 days

40️⃣ Arrange in order of size: millimetre, centimetre, metre, kilometre.
*A. *Millimetre < Centimetre < Metre < Kilometre**
B. Kilometre < Metre < Centimetre < Millimetre
C. Centimetre < Millimetre < Metre < Kilometre
D. Metre < Kilometre < Millimetre < Centimetre

SECTION E — AGENCY KNOWLEDGE (CDCFIB & ITS UNITS)

41️⃣ The Nigeria Immigration Service was established in —
A. 1960
*B. *1963**
C. 1979
D. 1985

42️⃣ The Nigeria Civil Defence Corps was upgraded to a national security agency in —
A. 1995
B. 2001
*C. *2003**
D. 2010

43️⃣ The Federal Fire Service operates under the Ministry of —
A. Defence
*B. *Interior**
C. Police Affairs
D. Environment

44️⃣ The motto of the NSCDC is —
A. Peace and Unity
B. Discipline and Integrity
C. Safety First
D. Service to Humanity

45️⃣ The Nigerian Correctional Service Act was enacted in —
A. 2015
*B. *2019**
C. 2020
D. 2022

46️⃣ The CDCFIB board is responsible for —
A. Conducting elections
B. Recruitment and discipline of officers in the 4 services
C. Budget management
D. Security patrols

47️⃣ The headquarters of the Nigeria Immigration Service is located in —
A. Kaduna
*B. *Abuja**
C. Lagos
D. Port Harcourt

48️⃣ The Civil Defence is empowered to protect —
A. Only government buildings
B. Lives, properties, and critical infrastructure
C. Only oil facilities
D. Forest reserves

49️⃣ The Federal Fire Service primarily deals with —
A. Criminal investigation
*B. *Fire prevention and rescue operations**
C. Election monitoring
D. Road traffic control

50️⃣ The Nigerian Correctional Service has two main facilities:
A. Remand and Juvenile Centres
*B. *Custodial and Non-custodial Centres**
C. Prisons and Hostels
D. Rehabilitation and Transit Camps

Final Thoughts

The CDCFIB Board Online Recruitment Exam is highly competitive, but consistent preparation makes a difference. Focus on improving your speed, accuracy, and understanding of key topics.

With the right study materials and mindset, you can successfully pass and move to the next stage of the CDCFIB recruitment process.