Welcome to this General Science MCQ practice test designed for TNPSC aspirants. This quiz covers important General Science questions commonly asked in the TNPSC Exam, helping you strengthen your concepts and improve your problem-solving skills. Attempt each question carefully and check the explanations to build a solid foundation for your exam preparation.
General Science MCQ Quiz 2 – Concept Booster
Reviewing every answer is one of the best ways to master General Science for the TNPSC Exam. The explanations below provide the correct answers with clear and concise reasoning, making it easier to understand important concepts and avoid similar mistakes in future General Science MCQ practice.
1️⃣ Human Blood
Human blood is a connective tissue that transports oxygen, nutrients and hormones throughout the body. It consists of red blood cells (RBCs), white blood cells (WBCs), platelets and plasma. RBCs carry oxygen using hemoglobin, WBCs help fight infections and platelets help in clotting. Blood plays a crucial role in maintaining body temperature and immunity.
2️⃣ Heart – Organ That Pumps Blood
The heart is a muscular organ that pumps blood throughout the body. It works continuously through contraction and relaxation cycles. Oxygenated blood is pumped to different body parts, while deoxygenated blood is sent to the lungs for purification. Questions related to human organs and their functions are common in General Science MCQ Quiz sections.
3️⃣ Boiling Point of Water
Water boils at 100°C at standard atmospheric pressure. Boiling is the process where a liquid changes into vapor when heated. Temperature is commonly measured in Celsius in competitive exams. Basic facts like boiling and melting points are frequently asked.
4️⃣ Unit of Electric Current
The SI unit of electric current is Ampere (A). It is named after scientist André-Marie Ampère. Electric current is the flow of electric charge in a conductor. Understanding basic SI units is very important for SSC and RRB exams.
Other important SI units:
- Power – Watt
- Force – Newton
- Energy – Joule
5️⃣ Oxygen and Respiration
Oxygen is the gas required for respiration. During respiration, oxygen helps break down glucose to release energy. This energy is essential for body functions. Humans inhale oxygen and exhale carbon dioxide. Respiration-related questions are common in Biology sections.
6️⃣ Largest Bone in Human Body
The femur (thigh bone) is the largest and strongest bone in the human body. It supports body weight and helps in movement. Human skeletal system facts are frequently asked in competitive exams.
7️⃣ Photosynthesis – Food Preparation in Plants
Plants prepare their food by photosynthesis. In this process, plants use sunlight, carbon dioxide and water to produce glucose and oxygen. Chlorophyll present in leaves absorbs sunlight. This concept is fundamental and repeatedly asked in General Science MCQ Quiz sections.
8️⃣ Vitamin from Sunlight
Vitamin D is produced in the body when skin is exposed to sunlight. It helps in calcium absorption and strengthens bones. Deficiency of Vitamin D may cause weak bones. Vitamins and their functions are important exam topics.
9️⃣ Unit of Force
The SI unit of force is Newton (N). Force is a push or pull that can change the shape or motion of an object. According to Newton’s Second Law, Force = Mass × Acceleration. Basic physics formulas are often tested in SSC exams.
🔟 Planet with Rings
Saturn is the planet most famous for its rings. Though other planets like Jupiter, Uranus and Neptune also have rings, Saturn’s ring system is the most visible and well-developed. Basic astronomy questions are frequently included in General Science sections.
Further Reading
Strengthen your General Science fundamentals by exploring the official NCERT Science textbooks. These books explain core scientific concepts in a simple and systematic manner, making them an excellent resource for General Science MCQ practice and TNPSC Exam preparation.
Official NCERT Science Textbooks:
or, if your quiz is based on Class 10 Science
Final Revision Strategy
To score well in General Science MCQ Quiz sections, focus on understanding fundamental concepts instead of memorizing isolated facts. Most questions are direct and concept-based. Regular revision and practice of MCQs improve speed and accuracy.
