DAV previous year question papers class 8 – All subjects

DAV previous year question papers for class 8 are valuable resources for students preparing for their exams. By solving these questions, students can improve their understanding of the topics and practice different types of questions that might appear in their exams. This article will cover questions and answers from all subjects to guide students effectively.

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DAV Previous Year Question Papers Class 8

Students of class 8 at DAV schools can benefit from practicing previous year question papers. These papers help students understand the exam pattern, types of questions, and how to manage time during exams. Here are the most commonly asked questions and answers for various subjects based on the previous year papers.

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Subject: Mathematics

Question: What is the value of pi (π) to two decimal places?

Answer: The value of pi (π) to two decimal places is 3.14.

Question: Find the sum of the angles of a triangle.

Answer: The sum of the angles of a triangle is 180 degrees.

Question: What is the perimeter of a rectangle with length 10 cm and width 5 cm?

Answer: The perimeter of the rectangle is 30 cm.

Question: Solve for x in the equation 2x + 5 = 11.

Answer: The value of x is 3.

Question: What is the area of a circle with radius 7 cm?

Answer: The area of the circle is 154 square centimeters (using π = 3.14).

Question: Find the volume of a cube with side length 4 cm.

Answer: The volume of the cube is 64 cubic centimeters.

Question: How do you convert a fraction into a decimal?

Answer: To convert a fraction into a decimal, divide the numerator by the denominator.

Question: What is the difference between a prime number and a composite number?

Answer: A prime number has only two divisors, 1 and itself, while a composite number has more than two divisors.

Question: What is the LCM of 12 and 15?

Answer: The LCM of 12 and 15 is 60.

Question: Find the HCF of 18 and 24.

Answer: The HCF of 18 and 24 is 6.

Question: What is the rule for multiplying two negative numbers?

Answer: The product of two negative numbers is positive.

Question: If a bag contains 5 red, 3 blue, and 2 green balls, what is the probability of drawing a blue ball?

Answer: The probability of drawing a blue ball is 3/10.

Question: What is the square root of 64?

Answer: The square root of 64 is 8.

Question: Simplify the expression 5x – 3x.

Answer: The simplified expression is 2x.

Question: Convert 3/4 into a percentage.

Answer: 3/4 is equal to 75%.

Question: What is the decimal form of 7/8?

Answer: The decimal form of 7/8 is 0.875.

Question: Calculate the area of a triangle with base 6 cm and height 8 cm.

Answer: The area of the triangle is 24 square centimeters.

Question: What is the difference between the terms ‘mean’ and ‘median’?

Answer: The mean is the average of all numbers, while the median is the middle number when the data is arranged in order.

Question: Find the ratio of 16 to 20.

Answer: The ratio of 16 to 20 is 4:5.

Question: If x = 4, find the value of 2x + 3.

Answer: The value of 2x + 3 is 11.

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Subject: Science

Question: What is photosynthesis?

Answer: Photosynthesis is the process by which green plants make their food using sunlight, water, and carbon dioxide.

Question: What is the boiling point of water?

Answer: The boiling point of water is 100°C at sea level.

Question: Name the three states of matter.

Answer: The three states of matter are solid, liquid, and gas.

Question: What is the chemical symbol for water?

Answer: The chemical symbol for water is H2O.

Question: What is the function of the heart in humans?

Answer: The heart pumps blood throughout the body to deliver oxygen and nutrients.

Question: Define gravity.

Answer: Gravity is the force that attracts objects towards the center of the Earth or any other large body.

Question: What is the main source of energy for the Earth?

Answer: The main source of energy for the Earth is the Sun.

Question: What is an ecosystem?

Answer: An ecosystem is a community of living organisms interacting with each other and their environment.

Question: How does the digestive system work in humans?

Answer: The digestive system breaks down food into nutrients, which the body absorbs for energy and growth.

Question: What is the primary function of the respiratory system?

Answer: The primary function of the respiratory system is to supply oxygen to the body and remove carbon dioxide.

Question: What are the three types of muscles in the human body?

Answer: The three types of muscles are skeletal muscles, smooth muscles, and cardiac muscles.

Question: What is the process of reproduction in plants?

Answer: Reproduction in plants involves pollination, fertilization, and seed formation.

Question: What is an electric circuit?

Answer: An electric circuit is a closed loop through which electric current flows.

Question: What is the role of chlorophyll in plants?

Answer: Chlorophyll helps in photosynthesis by absorbing sunlight and converting it into chemical energy.

Question: Define the term ‘energy transformation.’

Answer: Energy transformation is the process of changing energy from one form to another, like from electrical energy to light energy.

Question: What is the difference between a conductor and an insulator?

Answer: A conductor allows electricity to flow through it, while an insulator does not allow electricity to pass through.

Question: How do magnets work?

Answer: Magnets have magnetic fields that attract or repel other materials containing iron, cobalt, or nickel.

Question: What is the function of the roots in a plant?

Answer: The roots anchor the plant to the ground and absorb water and nutrients from the soil.

Question: What is the importance of water for life?

Answer: Water is essential for all life forms as it is involved in processes like digestion, circulation, and temperature regulation.

Question: What is the purpose of the ozone layer?

Answer: The ozone layer protects the Earth from harmful ultraviolet radiation from the Sun.

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Subject: Social Science

Question: What is democracy?

Answer: Democracy is a system of government where the people have the power to elect their leaders.

Question: Who was the first President of India?

Answer: The first President of India was Dr. Rajendra Prasad.

Question: What is the capital of India?

Answer: The capital of India is New Delhi.

Question: What is the importance of the Constitution of India?

Answer: The Constitution of India is important as it lays down the laws and principles that govern the country.

Question: Name the rivers of India.

Answer: Some of the major rivers of India are the Ganges, Yamuna, Brahmaputra, and Narmada.

Question: Who is known as the Father of the Nation in India?

Answer: Mahatma Gandhi is known as the Father of the Nation in India.

Question: What is the national flower of India?

Answer: The national flower of India is the lotus.

Question: What is the main function of the Indian Parliament?

Answer: The main function of the Indian Parliament is to make laws, debate issues, and represent the people.

Question: Name the national symbols of India.

Answer: The national symbols of India include the national flag, national emblem, national anthem, national animal (tiger), and national bird (peacock).

Question: What is the role of the judiciary in India?

Answer: The judiciary in India interprets the law and ensures justice is served in the country.

Question: What is the significance of Independence Day in India?

Answer: Independence Day is celebrated on August 15th, marking the day India gained freedom from British rule in 1947.

Question: Who was Jawaharlal Nehru?

Answer: Jawaharlal Nehru was the first Prime Minister of India and a key figure in the Indian independence movement.

Question: What is the national animal of India?

Answer: The national animal of India is the Bengal tiger.

Question: What are the primary occupations of people in rural areas of India?

Answer: The primary occupations in rural India are agriculture, farming, and animal husbandry.

Question: Name the major mountain ranges in India.

Answer: The major mountain ranges in India include the Himalayas, Western Ghats, and Eastern Ghats.

Question: What is secularism?

Answer: Secularism is the principle of separating religion from government affairs and ensuring equal treatment of all religions.

Question: What is the role of the President of India?

Answer: The President of India is the head of state and represents the country in international matters.

Question: Who was Subhas Chandra Bose?

Answer: Subhas Chandra Bose was an Indian nationalist leader who played a significant role in the Indian independence movement.

Question: What is the significance of Republic Day in India?

Answer: Republic Day is celebrated on January 26th to honor the adoption of the Indian Constitution in 1950.

Question: What are the different types of government systems?

Answer: The different types of government systems include democracy, monarchy, dictatorship, and oligarchy.

Practicing DAV previous year question papers for class 8 helps students understand the exam pattern and boosts their confidence. Solving these questions will give you a better grasp of the subjects and allow you to perform well in your exams.