If you’re preparing for the IB Security Assistant Exam 2025, this is your complete mock test guide. This free IB Security Assistant Mock Test 2025 includes 50+ practice MCQs with detailed explanations covering General Knowledge, Current Affairs, Reasoning, and Indian Affairs.
Practicing such mock tests daily helps improve accuracy, confidence, and understanding of question patterns. All questions follow the latest 2025 exam trends for the Intelligence Bureau Security Assistant/Executive (IB SA/Exe) exam conducted by the Ministry of Home Affairs (MHA).
IB Security Assistant 2025 Mock Test – 50+ Questions with Answers
1. Who is the current National Security Advisor (NSA) of India?
A. Ajit Doval
B. Rajnath Singh
C. Amit Shah
D. S. Jaishankar
Answer: A. Ajit Doval
Explanation: Ajit Doval has been India’s NSA since 2014. He plays a crucial role in India’s national security and foreign strategic policy planning under the Prime Minister’s Office.
2. Intelligence Bureau (IB) works under which ministry?
A. Ministry of Defence
B. Ministry of Home Affairs
C. Ministry of External Affairs
D. Ministry of Personnel
Answer: B. Ministry of Home Affairs
Explanation: The IB functions under the Ministry of Home Affairs, responsible for internal security, counter-intelligence, and coordination among state and central agencies.
3. IB Headquarters is located in which city?
A. Mumbai
B. New Delhi
C. Chennai
D. Bengaluru
Answer: B. New Delhi
Explanation: The Intelligence Bureau headquarters is located in New Delhi, from where it monitors national security and intelligence operations across India.
4. When was the Intelligence Bureau (IB) established?
A. 1887
B. 1892
C. 1947
D. 1950
Answer: A. 1887
Explanation: The IB was originally set up in 1887 during British rule, making it one of the oldest intelligence agencies in the world.
5. Which of the following is the motto of the Intelligence Bureau?
A. Always Alert
B. Knowledge is Power
C. Intelligence for Security
D. Truth Alone Triumphs
Answer: C. Intelligence for Security
Explanation: The motto “Intelligence for Security” represents IB’s mission to ensure India’s internal safety and prevent threats before they occur.
6. Who appoints the Director of Intelligence Bureau?
A. President of India
B. Prime Minister
C. Home Minister
D. Cabinet Secretary
Answer: C. Home Minister
Explanation: The Director of IB is appointed by the Ministry of Home Affairs, based on seniority and experience from the Indian Police Service (IPS).
7. Which exam is conducted for IB Security Assistant posts?
A. UPSC
B. SSC
C. MHA Recruitment
D. NTA
Answer: C. MHA Recruitment
Explanation: The Ministry of Home Affairs (MHA) conducts the IB Security Assistant exam across India for selecting eligible candidates into the Intelligence Bureau.
8. The IB Security Assistant exam is conducted in how many tiers?
A. One
B. Two
C. Three
D. Four
Answer: B. Two
Explanation: The IB SA exam consists of two stages — Tier-I (Objective MCQs) and Tier-II (Descriptive/Skill test) followed by an interview.
9. Full form of IB is –
A. Intelligence Bureau
B. Internal Bureau
C. Investigation Board
D. Indian Bureau
Answer: A. Intelligence Bureau
Explanation: IB stands for Intelligence Bureau, which is India’s internal intelligence agency under the Ministry of Home Affairs.
10. Who was India’s first National Security Advisor?
A. Ajit Doval
B. Brajesh Mishra
C. M. K. Narayanan
D. Shiv Shankar Menon
Answer: B. Brajesh Mishra
Explanation: Brajesh Mishra was the first NSA of India, appointed in 1998 during Atal Bihari Vajpayee’s tenure as Prime Minister.
11. Who is the current President of India (2025)?
A. Ram Nath Kovind
B. Droupadi Murmu
C. Pratibha Patil
D. A. P. J. Abdul Kalam
Answer: B. Droupadi Murmu
Explanation: Droupadi Murmu became the 15th President of India in 2022, and the first tribal woman to hold this position.
12. Capital of Telangana is –
A. Hyderabad
B. Warangal
C. Amaravati
D. Vijayawada
Answer: A. Hyderabad
Explanation: Hyderabad is the capital city of Telangana and serves as a major IT and business hub in southern India.
13. G20 Summit 2025 will be hosted by which country?
A. India
B. Brazil
C. Italy
D. Indonesia
Answer: B. Brazil
Explanation: After India’s successful hosting in 2023, the G20 Presidency for 2025 will be held by Brazil.
14. Currency of Japan is –
A. Won
B. Yen
C. Yuan
D. Dollar
Answer: B. Yen
Explanation: The Japanese Yen (¥) is Japan’s official currency and is among the most traded currencies globally.
15. Who is known as the Missile Man of India?
A. C. V. Raman
B. Homi Bhabha
C. Dr. A. P. J. Abdul Kalam
D. Vikram Sarabhai
Answer: C. Dr. A. P. J. Abdul Kalam
Explanation: Dr. Kalam earned the title “Missile Man” for his contributions to India’s missile and space programs.
16. Which planet is known as the Red Planet?
A. Venus
B. Jupiter
C. Mars
D. Mercury
Answer: C. Mars
Explanation: Mars appears reddish due to iron oxide on its surface and is often called the Red Planet.
17. National Animal of India is –
A. Lion
B. Bengal Tiger
C. Peacock
D. Elephant
Answer: B. Bengal Tiger
Explanation: The Bengal Tiger symbolizes India’s strength and is the national animal since 1972.
18. Who wrote ‘Geetanjali’?
A. Harivansh Rai Bachchan
B. Sarojini Naidu
C. Rabindranath Tagore
D. Bankim Chandra
Answer: C. Rabindranath Tagore
Explanation: ‘Geetanjali’ won Tagore the Nobel Prize in Literature in 1913, the first for an Asian author.
19. UNO was founded in the year –
A. 1919
B. 1939
C. 1945
D. 1950
Answer: C. 1945
Explanation: The United Nations Organization (UNO) was formed in 1945 after World War II to maintain international peace.
20. Which gas is used in fire extinguishers?
A. Oxygen
B. Carbon Dioxide
C. Nitrogen
D. Helium
Answer: B. Carbon Dioxide
Explanation: CO₂ extinguishers work by cutting off oxygen supply and cooling the flames.
Q21. Who invented the telephone?
A) Alexander Graham Bell
B) Thomas Edison
C) Nikola Tesla
D) Isaac Newton
Answer: A) Alexander Graham Bell
Explanation: Alexander Graham Bell invented the telephone in 1876, revolutionizing human communication forever.
Q22. The currency of China is —
A) Yen
B) Won
C) Renminbi (Yuan)
D) Baht
Answer: C) Renminbi (Yuan)
Explanation: China’s currency is officially called Renminbi (RMB), with Yuan as its primary unit.
Q23. The world’s highest mountain peak is —
A) Kanchenjunga
B) Mount Everest
C) K2
D) Lhotse
Answer: B) Mount Everest
Explanation: Mount Everest, located in the Himalayas, stands at 8,848.86 meters and is the highest peak on Earth.
Q24. Which state is known as the “Land of Five Rivers”?
A) Haryana
B) Punjab
C) Rajasthan
D) Bihar
Answer: B) Punjab
Explanation: Punjab, derived from Persian words “Panj” (five) and “Aab” (water), means land of five rivers.
Q25. Who was the first President of India?
A) Rajendra Prasad
B) Dr. S. Radhakrishnan
C) Jawaharlal Nehru
D) Zakir Hussain
Answer: A) Rajendra Prasad
Explanation: Dr. Rajendra Prasad served as India’s first President from 1950 to 1962.
Q26. What is the SI unit of Force?
A) Joule
B) Watt
C) Newton
D) Pascal
Answer: C) Newton
Explanation: The SI unit of force is Newton (N), named after Sir Isaac Newton, defined as kg·m/s².
Q27. Who painted the Mona Lisa?
A) Pablo Picasso
B) Leonardo da Vinci
C) Michelangelo
D) Rembrandt
Answer: B) Leonardo da Vinci
Explanation: The Mona Lisa, painted by Leonardo da Vinci during the Renaissance, is one of the world’s most famous artworks.
Q28. Which country is known as the Land of the Rising Sun?
A) China
B) Japan
C) Korea
D) Thailand
Answer: B) Japan
Explanation: Japan is called the Land of the Rising Sun because it lies east of Asia, where the sun rises first.
Q29. Which is the largest ocean in the world?
A) Indian Ocean
B) Atlantic Ocean
C) Pacific Ocean
D) Arctic Ocean
Answer: C) Pacific Ocean
Explanation: The Pacific Ocean covers one-third of Earth’s surface, making it the largest and deepest ocean.
Q30. Who was known as the Iron Man of India?
A) Subhas Chandra Bose
B) Bhagat Singh
C) Sardar Vallabhbhai Patel
D) Lala Lajpat Rai
Answer: C) Sardar Vallabhbhai Patel
Explanation: Sardar Patel unified over 500 princely states post-independence, earning the title “Iron Man of India.”
Q31. Who discovered electricity?
A) Isaac Newton
B) Benjamin Franklin
C) Thomas Edison
D) Michael Faraday
Answer: B) Benjamin Franklin
Explanation: Benjamin Franklin proved that lightning and electricity are the same by flying a kite in a thunderstorm in 1752, leading to major discoveries in electrical science.
Q32. Which country gifted the Statue of Liberty to the USA?
A) Germany
B) France
C) England
D) Italy
Answer: B) France
Explanation: France gifted the Statue of Liberty to the USA in 1886 to symbolize freedom, democracy, and friendship between the two nations.
Q33. The largest desert in the world is —
A) Gobi Desert
B) Sahara Desert
C) Thar Desert
D) Kalahari Desert
Answer: B) Sahara Desert
Explanation: The Sahara, spanning over 9 million square kilometers across North Africa, is the largest hot desert on Earth.
Q34. Who was the first woman Prime Minister of India?
A) Sarojini Naidu
B) Indira Gandhi
C) Pratibha Patil
D) Sonia Gandhi
Answer: B) Indira Gandhi
Explanation: Indira Gandhi served as India’s first and only woman Prime Minister from 1966 to 1977 and again from 1980 to 1984.
Q35. Which element is most abundant in the Earth’s crust?
A) Iron
B) Silicon
C) Oxygen
D) Aluminum
Answer: C) Oxygen
Explanation: Oxygen makes up about 46% of the Earth’s crust by weight, mostly found in oxides and silicates.
Q36. The headquarters of ISRO is located in —
A) New Delhi
B) Bengaluru
C) Chennai
D) Hyderabad
Answer: B) Bengaluru
Explanation: The Indian Space Research Organisation (ISRO) is headquartered in Bengaluru, Karnataka, where India’s major space missions are planned and managed.
Q37. Which Indian city is called the Pink City?
A) Jaipur
B) Jodhpur
C) Udaipur
D) Ajmer
Answer: A) Jaipur
Explanation: Jaipur, the capital of Rajasthan, is called the Pink City because of its distinctive pink-colored buildings symbolizing hospitality.
Q38. Who invented the light bulb?
A) Thomas Edison
B) Nikola Tesla
C) Benjamin Franklin
D) Alexander Graham Bell
Answer: A) Thomas Edison
Explanation: Thomas Edison invented a practical and long-lasting electric light bulb in 1879, transforming night illumination.
Q39. Which is the national animal of India?
A) Lion
B) Tiger
C) Elephant
D) Peacock
Answer: B) Tiger
Explanation: The Bengal Tiger represents strength, agility, and grace and is India’s national animal, symbolizing wildlife conservation.
Q40. Who was the first Indian to win a Nobel Prize?
A) Rabindranath Tagore
B) C.V. Raman
C) Mother Teresa
D) Amartya Sen
Answer: A) Rabindranath Tagore
Explanation: Tagore won the Nobel Prize in Literature in 1913 for his poetry collection “Gitanjali,” making India proud globally.
Q41. The Indian Parliament consists of —
A) Lok Sabha
B) Rajya Sabha
C) President
D) All of the above
Answer: D) All of the above
Explanation: The Indian Parliament is composed of the President, Lok Sabha (House of People), and Rajya Sabha (Council of States).
Q42. What is the national tree of India?
A) Mango Tree
B) Peepal Tree
C) Banyan Tree
D) Neem Tree
Answer: C) Banyan Tree
Explanation: The Banyan Tree represents eternal life and unity, and it’s India’s national tree due to its large canopy and longevity.
Q43. Which planet is known as the Red Planet?
A) Earth
B) Venus
C) Mars
D) Jupiter
Answer: C) Mars
Explanation: Mars appears red due to iron oxide (rust) on its surface and is often studied for possible life existence.
Q44. The national fruit of India is —
A) Banana
B) Mango
C) Apple
D) Orange
Answer: B) Mango
Explanation: Mango, the “King of Fruits,” is India’s national fruit, loved for its sweetness and cultural importance.
Q45. The currency of the United Kingdom is —
A) Dollar
B) Pound Sterling
C) Euro
D) Franc
Answer: B) Pound Sterling
Explanation: The Pound Sterling (£) is the official currency of the UK and one of the world’s oldest still in use.
Q46. The world’s largest continent is —
A) Africa
B) Asia
C) North America
D) Europe
Answer: B) Asia
Explanation: Asia covers nearly 30% of the world’s land area and is home to the highest population.
Q47. Who discovered gravity?
A) Albert Einstein
B) Galileo Galilei
C) Isaac Newton
D) Johannes Kepler
Answer: C) Isaac Newton
Explanation: Sir Isaac Newton formulated the law of universal gravitation in the 17th century after observing a falling apple.
Q48. Which gas is most abundant in the Earth’s atmosphere?
A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Hydrogen
Answer: C) Nitrogen
Explanation: Nitrogen makes up about 78% of Earth’s atmosphere and is vital for living organisms.
Q49. The largest planet in our solar system is —
A) Earth
B) Jupiter
C) Saturn
D) Neptune
Answer: B) Jupiter
Explanation: Jupiter is the largest planet, with a mass 318 times that of Earth and a strong magnetic field.
Q50. Who is known as the Missile Man of India?
A) Homi J. Bhabha
B) Vikram Sarabhai
C) A.P.J. Abdul Kalam
D) C.V. Raman
Answer: C) A.P.J. Abdul Kalam
Explanation: Dr. A.P.J. Abdul Kalam, former President of India, was called the Missile Man for his role in developing India’s missile technology and defense systems.
Summary
This IB Security Assistant Mock Test 2025 with 50+ practice questions helps aspirants test their preparation. Regular practice of these MCQs improves understanding of GK, current affairs, reasoning, and Indian polity topics relevant for IB exams.
