RRB NTPC Mock Test 2025: Welcome to the RRB NTPC Mock Test 2025! This practice quiz is designed to help you assess your preparation and get ready for the upcoming RRB NTPC exam. Whether you’re just starting or looking to fine-tune your knowledge, this mock test will challenge your understanding of key topics like Indian history, geography, general knowledge, and more.
The test consists of multiple-choice questions that mirror the type and difficulty level of the questions you can expect in the actual exam. By completing this quiz, you’ll not only measure your current knowledge but also identify areas where you need further revision.

So, take a deep breath, dive in, and let’s see how ready you are for the RRB NTPC exam! Best of luck!
RRB NTPC Mock Test 2025 Set-12
1. Who invented the telephone?
Correct! Alexander Graham Bell invented the telephone.
In 1876, Alexander Graham Bell made the first successful telephone call, revolutionizing communication.
2. What is the hardest natural substance on Earth?
Correct! Diamond is the hardest natural substance on Earth.
Diamonds are made of carbon atoms arranged in a crystal lattice structure, making them incredibly hard.
3. What is the main ingredient in guacamole?
Correct! The main ingredient in guacamole is avocado.
Guacamole is a Mexican dip made primarily from mashed avocado, along with other ingredients like lime, garlic, and tomatoes.
4. Which planet is known as the Red Planet?
Correct! Mars is known as the Red Planet.
Mars is called the “Red Planet” due to its reddish appearance, caused by iron oxide (rust) on its surface.
5. Who is the founder of Microsoft?
Correct! Bill Gates is the founder of Microsoft.
Bill Gates, along with Paul Allen, founded Microsoft in 1975, making it one of the largest tech companies in the world.
6. Which is the longest river in the world?
Correct! The Nile is the longest river in the world.
The Nile River in Africa stretches over 6,650 kilometers, making it the longest river globally, even though the Amazon is the largest by discharge.
7. What is the primary language spoken in Brazil?
Correct! Portuguese is the primary language spoken in Brazil.
Brazil is the only country in South America where Portuguese is the official language, due to its colonial past under Portugal.
8. In which year did India become a republic?
Correct! India became a republic in 1950.
India became a republic on January 26, 1950, when the Constitution of India came into effect, making India a sovereign, democratic republic.
9. Who painted the Mona Lisa?
Correct! Leonardo da Vinci painted the Mona Lisa.
The Mona Lisa, one of the most famous paintings in the world, was created by Leonardo da Vinci in the early 16th century.
10. What is the smallest ocean in the world?
Correct! The Arctic Ocean is the smallest ocean in the world.
The Arctic Ocean, located around the North Pole, covers approximately 15 million square kilometers, making it the smallest of the Earth’s five oceans.