CDCFIB SECRETARIAT CBT – 100 PAST QUESTIONS &

ANSWERSTO MAKE IT WELL-ORGANIZED FOR STUDY, I’LL

DIVIDE IT INTO 6 MAIN SECTIONS:
1. CDCFIB Structure & Current Affairs

2. English Language (Grammar & Vocabulary)3. Quantitative Reasoning &

Basic Maths

4. Logical & Analytical Reasoning

5. General Studies (Nigeria & the World)

6. ICT & Office Practice

Section 1: CDCFIB Structure & Current Affairs (Q1–Q25)

1. The CDCFIB oversees recruitment, promotion, appointment, and discipline
of personnel in which of the following agencies?
A. Nigerian Police Force
B. Agencies under the Civil Defence, Corrections, Fire, and Immigration board
C. State-level paramilitary units
D. Private security organizations
Answer: B – CDCFIB is responsible for NSCDC, Fire Service, Immigration, and
Correction
2. Who typically serves as the Chairman of the CDCFIB?A. Minister of Interior
B. Minister of Defence
C. Comptroller General of Customs
D. National Security Adviser
Answer: A – Chaired by the Minister of Interior.
3. Which decree or act empowers the CDCFIB to operate?
A. Electoral Act
B. Public Service Rules
C. Establishment Act of the Ministry of Interior
D. Nigeria Immigration Act
Answer: C – Provided for under the Ministry of Interior’s Establishment Act.
4. The full meaning of CDCFIB is:
A. Civil Defence, Correctional, Fire and Immigration Board
B. Civil Defence, Customs, Fire and Immigration Board
C. Civil Defence, Corrections, Fire and Immigration Services BoardD. Civil
Defence, Communications, Fire and Immigration Board
Answer: A – Correct expansion.
5. Which ministry supervises the CDCFIB?A. Ministry of Defence
B. Ministry of Interior
C. Ministry of Justice
D. Ministry of Labour
Answer: B – Under the Ministry of Interior.
6. Which of the following is not an agency under CDCFIB?A. Nigeria
Immigration Service
B. Nigeria Security and Civil Defence Corps
C. Federal Road Safety Corps
D. Nigerian Correctional Service
Answer: C – FRSC is under a different ministry. 7. The Nigerian
Correctional Service was formerly called:A. Nigeria Prisons Service
B. Penal Enforcement Department
C. Correctional Board of Nigeria
D. Prison Security Corps
Answer: A – Renamed in 2019.
8. The NSCDC was established in:
A. 1960
B. 1967
C. 1970
D. 1980
Answer: B – Began during the Civil War.
9. The Nigeria Immigration Service was created in which year?A. 1955
B. 1958
C. 1963
D. 1975
Answer: C – Separated from the Nigerian Police in 1963.
10. Which arm of government enacts the laws establishing paramilitary
agencies?A. Executive
B. Judiciary
C. Legislature
D. Civil Service Commission
Answer: C – The Legislature passes enabling laws.
11. Who appoints the members of the CDCFIB?A. Minister of Interior
B. President of Nigeria
C. Senate President
D. Head of Service
Answer: B – Appointment is presidential.
12. The motto of the Nigeria Immigration Service is:
A. Service and Humility
B. Migration Management for National DevelopmentC. Safety and Protection
D. Security and Vigilance
Answer: B – Official motto.
13. The primary role of the Federal Fire Service is:A. Policing
B. Fire prevention and rescue
C. Immigration control
D. Border patrol
Answer: B – Fire prevention and rescue.
14. Which of the following conducts recruitment exams for CDCFIB agencies?
A. Ministry of Labour
B. CDCFIB Secretariat
C. Civil Service Commission
D. Private recruitment firms
Answer: B – Managed by the Secretariat.
15. The Nigerian Correctional Service’s emblem features:A. Torch and shield
B. Chains and eagle
C. Key and lock
D. Open book and scales
Answer: C – Represents custody and rehabilitation.
16. The headquarters of CDCFIB is located in:A. Abuja
B. Lagos
C. Kaduna
D. Ibadan
Answer: A – Based in Abuja.
17. The Nigeria Immigration Service issues which of the following?A. Birth
Certificates
B. International Passports
C. Voter Cards
D. Driving Licences
Answer: B – Issues passports.
18. CDCFIB was formerly known as:
A. Civil Defence and Prisons Board
B. Immigration and Prisons Board
C. Civil Service Recruitment Board
D. National Paramilitary Commission
Answer: B – Immigration and Prisons Board.
19. Who is the administrative head of the CDCFIB Secretariat?
A. Chairman
B. Secretary
C. Permanent Secretary
D. Comptroller General
Answer: C – Permanent Secretary.
20. The NSCDC Act was passed into law in:A. 2000
B. 2003
C. 2007
D. 2010
Answer: C – Legal backing in 2007.
21. Which CDCFIB agency handles prison reforms?A. Nigeria Immigration
Service
B. Nigerian Correctional Service
C. NSCDC
D. Federal Fire Service
Answer: B – Handles correctional reforms.
22. CDCFIB’s role in discipline includes:
A. Conducting trials
B. Recommending promotions
C. Dismissing erring officers
D. All of the above
Answer: D – Handles personnel management. 23. The Minister of Interior
in 2023 was:A. Ogbeni Rauf Aregbesola
B. Abubakar Malami
C. Bashir Magashi
D. Olubunmi Tunji-Ojo
Answer: D – Current Minister.
24. Nigeria Immigration Service officers at borders are known as:A. Border
Guards
B. Immigration Officers
C. Patrol Officers
D. Entry Controllers
Answer: B – Immigration Officers.
25. Which of the following is the oldest among CDCFIB agencies?A. NCoS
B. NSCDC
C. NIS
D. FFS
Answer: A – Prisons Service dates back to colonial times.
Section 2: English Language – Grammar, Vocabulary & Comprehension (Q26–
Q40)
26. Identify the correctly punctuated sentence:
A. He said, “I will be late.”
B. He said “I will be late.”
C. He said; “I will be late”
D. He said. “I will be late”
Answer: A – Comma before quotation mark is correct.
27. Choose the correct word:
The new recruit is very ____ at learning procedures.A. adapt
B. adept
C. adopt
D. adopting
Answer: B – “Adept” means skilled.
28. Fill in the blank:
The committee has reached ____ decision on the matter.
A. their
B. its
C. it’s
D. they’re
Answer: B – “Committee” is singular.
29. Which is the correct spelling?
A. Accomodation
B. Acommodation
C. Accommodation
D. Acomodation
Answer: C – Double “c” and double “m.”
B. Acommodation
C. Accommodation
D. Acomodation
Answer: C – Double “c” and double “m.”
30. Replace the underlined word with a synonym:
The officer’s conduct was commendable.
A. Disgraceful. B. Praiseworthy
C. Questionable
D. Ordinary
Answer: B – “Praiseworthy” is a synonym.
31. Choose the correct tense:
By next month, I ____ working here for 5 years.
A. will be
B. will have been
C. have been
D. am
Answer: B – Future perfect continuous tense.
32. Which sentence is in the passive voice?
A. The guard closed the gate.
B. The gate was closed by the guard.
C. The guard is closing the gate.
D. The gate will close soon.
Answer: B – Passive construction.
33. Fill in the correct preposition:
The officer is responsible ____ maintaining discipline.
A. in
B. of
C. for
D. to
Answer: C – “Responsible for” is correct.
34. Which of the following is an antonym of “lenient”?
A. Harsh
B. Kind
C. Gentle
D. Patient
Answer: A – Opposite of “lenient.”
35. Choose the correct sentence:
A. The documents was submitted on time.
B. The document were submitted on time.
C. The documents were submitted on time.
D. The document was submitted on time.
Answer: C – Correct subject-verb agreement.
36. Identify the part of speech:
“Quickly” in “He quickly locked the door.”A. Adjective
B. Adverb
C. Verb
D. Noun
Answer: B – Describes how he locked.
37. Complete the sentence:
If I ____ you, I would apply for the position
A. was
B. were
C. am
D. will be
Answer: B – Subjunctive “were.” B. Praiseworthy
C. Questionable
D. Ordinary
Answer: B – “Praiseworthy” is a synonym.
31. Choose the correct tense:
By next month, I ____ working here for 5 years.
A. will be
B. will have been
C. have been
D. am
Answer: B – Future perfect continuous tense.
32. Which sentence is in the passive voice?
A. The guard closed the gate.
B. The gate was closed by the guard.
C. The guard is closing the gate.
D. The gate will close soon.
Answer: B – Passive construction.
33. Fill in the correct preposition:
The officer is responsible ____ maintaining discipline.
A. in
B. of
C. for
D. to
Answer: C – “Responsible for” is correct.
34. Which of the following is an antonym of “lenient”?
A. Harsh
B. Kind
C. Gentle
D. Patient
Answer: A – Opposite of “lenient.”
35. Choose the correct sentence:
A. The documents was submitted on time.
B. The document were submitted on time.
C. The documents were submitted on time.
D. The document was submitted on time.
Answer: C – Correct subject-verb agreement.
36. Identify the part of speech:
“Quickly” in “He quickly locked the door.”
A. Adjective
B. Adverb
C. Verb
D. Noun
Answer: B – Describes how he locked.
37. Complete the sentence:
If I ____ you, I would apply for the position.
A. was
B. were
C. am
D. will be
Answer: B – Subjunctive “were.”
38. Choose the correct word:
The suspect was found ____ the stolen goods.
A. with
B. by
C. of
D. on
Answer: A – “With the stolen goods” is correct.
39. Which is a compound sentence?
A. He ran fast.
B. He ran fast, and he won the race.
C. Running fast, he won the race.
D. To win, he ran fast.
Answer: B – Two independent clauses joined by “and.”
40. Choose the correct form:
Neither the officer nor the men ____ aware of the changes.
A. was
B. were
C. are
D. is
Answer: A – Agreement follows the nearer subject “officer.”
Section 3: Quantitative Reasoning & Basic Maths (Q41–Q55)
41. If a bag costs ₦2,500 and is sold at ₦3,000, what is the profit percentage?
A. 15%
B. 18%
C. 20%
D. 25%
Answer: C – (500 ÷ 2500) × 100 = 20%.
42. Simplify: 3/4 × 8/9 = ?
A. 2/3
B. 4/3
C. 8/27
D. 1/3
Answer: A – Multiply numerators and denominators.
43. If 12 men can build a wall in 8 days, how many days will 6 men take?
A. 4
B. 8
C. 12
D. 16
Answer: D – Half the men = double the time.
44. Find the simple interest on ₦10,000 at 5% per annum for 3 years.A.
₦1,500
B. ₦1,000
C. ₦2,000
D. ₦500. ₦2,000
D. ₦500
Answer: A – SI = (P × R × T) / 100 = 1500.
45. The sum of angles in a triangle is:A. 90°
B. 180. C. 270°
D. 360°
Answer: B – Always 180°.
46. Express 0.75 as a fraction.
A. 3/4
B. 1/4
C. 4/3
D. 75/10
Answer: A – 0.75 = 75/100 = 3/4.
47. If a shirt is ₦5,000 and there’s a 20% discount, how much is paid?
A. ₦4,000
B. ₦3,500
C. ₦4,500
D. ₦3,800
Answer: A – Discount = 1000, so pay 4000.
48. 5² × 5³ = ?
A. 5⁵
B. 5⁶
C. 10⁵
D. 25⁵
Answer: A – Add powers: 2+3=5.
49. If 2x – 4 = 10, find x.
A. 2
B. 5
C. 6
D. 7
Answer: C – 2x=14 → x=7 (Oops correction: actually x=7). ✅
50. 25% of 1,200 is:
A. 240
B. 300
C. 400
D. 500
Answer: B – (25/100) × 1200 = 300.
51. A train moves at 60 km/h for 2 hours. Distance = ?
A. 60 km
B. 100 km
C. 120 km
D. 180 km
Answer: C – Distance = speed × time.
52. If 5 oranges cost ₦250, how much for 12 oranges?
A. ₦500
B. ₦550
C. ₦600
D. ₦700. D. ₦700
Answer: C – ₦50 each → 50 × 12 = 600.
53. The square root of 144 is:
A. 10
B. 11. C. 12
D. 13
Answer: C – √144 = 12.
54. A man shares ₦9,000 in the ratio 2:1. The smaller share is:
A. ₦3,000
B. ₦4,000
C. ₦2,500
D. ₦3,500
Answer: A – Total parts = 3, one part = 3000.
55. If 15% of x = 45, find x.
A. 200
B. 250
C. 300
D. 350
Answer: C – 0.15x = 45 → x=300.
Section 4: Logical & Analytical Reasoning (Q56–Q70)
56. All cats are animals. Some animals are dogs. Therefore:
A. All cats are dogs.
B. All dogs are cats.
C. Some animals are cats.
D. No cats are dogs.
Answer: C – True from statements.
57. What comes next: 2, 4, 8, 16, ?
A. 18
B. 20
C. 32
D. 64
Answer: C – Multiply by 2 each time.
58. Which does not belong: 3, 6, 9, 12, 15, 20
A. 3
B. 6
C. 15
D. 20
Answer: D – Not a multiple of 3.
59. If all flowers are plants, and some plants are trees, then:
A. All trees are flowers
B. Some trees are flowers
C. All flowers are trees
D. None of the above
Answer: D – Not enough info to conclude.
60. Spot the odd one out:
A. Square
B. Triangle
C. Circle
D. Cube
Answer: D – Cube is 3D, others are. 2D.
B. March
C. April
D. May
Answer: A – Sequential relationship.
62. If B = 2, C = 3, then E = ?
A. 4
B. 5
C. 6
D. 7
Answer: B – Alphabet position.
63. Arrange in order: 21, 14, 28, 7A. 7, 14, 21, 28
B. 14, 7, 21, 28
C. 28, 21, 14, 7
D. 7, 21, 14, 28
Answer: A – Ascending order.
64. If “POLICE” is coded as “QNMDJF,” then “FIRE” is:
A. GJSF
B. GJQF
C. GJRF
D. HJRF
Answer: B – Each letter +1.
65. Which number replaces the question mark? 5, 10, 20, 40, ?
A. 45
B. 60
C. 80
D. 100
Answer: C – ×2 each time.
66. If today is Wednesday, what day will it be in 15 days?
A. Thursday
B. Friday
C. Saturday
D. Sunday
Answer: C – 15 mod 7 = 1 day ahead.
67. Which is the next in the sequence: A, D, G, J, ?
A. K
B. L
C. M
D. N
Answer: C – Add 3 letters each step.
68. Which is the odd one: 2, 4, 8, 12, 16A. 2
B. 8
C. 12
D. 16
Answer: C – Not a power of 2.
A. 11
B. 12. C. 13
D. 14
Answer: C – Fibonacci series.
70. If ALL = 36, CAT = 24, then DOG = ?
A. 26
B. 27
C. 28
D. 29
Answer: B – D=4, O=15, G=7 → sum = 26 (Oops correction: 4+15+7=26, so
A=26) ✅.
Section 5: General Studies – Nigeria & World Affairs (Q71–Q85)
71. Nigeria became a republic in:
A. 1960
B. 1963
C. 1966
D. 1979
Answer: B – 1 October 1963.
72. The capital of Nigeria is:
A. Lagos
B. Abuja
C. Kaduna
D. Port Harcourt
Answer: B – Since 1991.
73. The current President of Nigeria (2025) is:
A. Goodluck Jonathan
B. Muhammadu Buhari
C. Bola Ahmed Tinubu
D. Yemi Osinbajo
Answer: C – Bola Ahmed Tinubu.
74. The ECOWAS headquarters is in:A. Lagos
B. Abuja
C. Accra
D. Abuja and Accra
Answer: C – Accra, Ghana.
75. Nigeria’s currency is issued by:
A. Ministry of Finance
B. Central Bank of Nigeria
C. Nigeria Minting Company
D. Commercial Banks
Answer: B – CBN issues currency.
76. The national pledge was written by:
A. Wole Soyinka
B. Felicia Adebola Adedoyin
C. Chinua Achebe
D. Flora Nwapa
Answer: B – Authored in 1976.
77. The green in Nigeria’s flag stands for:
A. Peace
B. Agriculture
C. Wealth
D. Justice
Answer: B – Symbol of agriculture.
78. The United Nations was founded in:A. 1942
B. 1945
C. 1948
D. 1950
Answer: B – After WWII.
79. The largest ocean in the world is:A. Atlantic
B. Indian
C. Pacific
D. Arctic
Answer: C – Pacific Ocean.
80. The body that conducts elections in Nigeria is:
A. INEC
B. EFCC
C. NPC
D. NOA
Answer: A – Independent National Electoral Commission.
81. The current Secretary-General of the UN is:
A. Ban Ki-moon
B. António Guterres
C. Kofi Annan
D. Boutros Boutros-Ghali
Answer: B – António Guterres.
82. The most populous state in Nigeria is:A. Lagos
B. Kano
C. Rivers
D. Kaduna
Answer: A – Lagos State.
83. The Sahara Desert is located in:A. South Africa
B. West Africa
C. North Africa
D. East Africa
Answer: C – North Africa.
84. The World Health Organization is headquartered in:
A. New York
B. Geneva
C. Paris
D. London
Answer: B – Geneva, Switzerland.
85. The river that flows through Lokoja is:
A. River Benue
B. River Niger
C. Both A and B
D. River Kaduna
Answer: C – Confluence of Niger and Benue.
Section 6: ICT & Office Practice (Q86–Q100)
86. The brain of a computer is the:
A. RAM
B. CPU
C. Hard Disk
D. Monitor
Answer: B – Central Processing Unit.
87. Which is an output device?
A. Mouse
B. Keyboard
C. Monitor
D. Scanner
Answer: C – Displays information.
88. In MS Word, “Ctrl + C” is used to:
A. Paste
B. Cut
C. Copy
D. Close
Answer: C – Copy command.
89. Which is a search engine?
A. Yahoo
B. Facebook
C. Gmail
D. Instagram
Answer: A – Yahoo is a search engine.
90. The full meaning of ICT is:
A. International Communication Technology
B. Information and Communication Technology
C. Internal Computer Technology
D. Interlinked Communication Transfer
Answer: B – Correct meaning.
91. In email, “CC” stands for:
A. Carbon Copy
B. Computer Copy
C. Cancel Copy
D. Clear Copy
Answer: A – Carbon Copy. 92. Which of these is not an operating system?
A. Windows
B. Linux
C. Android.
D. Microsoft Office
Answer: D – MS Office is application software.
93. Which storage device is portable?
A. Hard disk drive
B. Flash drive
C. CD-ROM
D. All of the above
Answer: D – All are portable to some degree.
94. In computing, “www” stands for:A. World Wide Web
B. Wide World Web
C. Web World Wide
D. World Web Wide
Answer: A – Standard acronym.
95. Which is an example of spreadsheet software?A. MS Excel
B. MS Word
C. PowerPoint
D. Notepad
Answer: A – MS Excel.
96. In typing, WPM stands for:
A. Words Per Minute
B. Words Per Memory
C. Words Printed Manually
D. Web Page Manager
Answer: A – Words Per Minute.
97. Which shortcut is used to save a document?A. Ctrl + S
B. Ctrl + C
C. Ctrl + V
D. Ctrl + X
Answer: A – Save command.
98. A group of linked computers is called a:A. Network
B. Server
C. Domain
D. Website
Answer: A – Network.
99. The rectangular area on a spreadsheet is called a:
A. Row
B. Column
C. Cell
D. Block
Answer: C – Intersection of row and column.
100. In ICT security, “phishing” means:
A. Fishing online
D. Posting adverts online
Answer: B – Cybercrime technique.

WISH ALL OF US EVERY SUCCESS.