GK Olympiad Previous Year Paper - 2 | GK Olympiad for Class 4 PDF Download

Ans: (b)

• The Circulatory system is crucial for transporting nutrients and oxygen throughout the body.
• This system includes the heart, blood vessels, and blood, which work together to ensure every cell receives what it needs.
• While the Respiratory system is important for breathing, it does not directly deliver food.
• The Excretory system is involved in waste removal, and the Nutritional system is not a recognized system in human biology.

Ans: (c)
Gurudwara is the holy place of Sikhs.

Ans: (b)

• Jams are primarily made from fruits and sugar, and they do not require oil or vinegar for preservation.
• On the other hand, fish, pickles, and vegetables can be preserved effectively using oil and vinegar.
• This method helps to enhance flavor and extend shelf life by creating an acidic environment that inhibits spoilage.
• Therefore, the correct answer is jams, as they are not preserved using oil and vinegar.

Ans: (a)

• Duckweed is a tiny plant that floats on the surface of water, making it a free-floating plant.
• In contrast, tape grass and lotus are rooted in the water, while water lily has a different growth habit.
• Duckweed is known for its rapid growth and can cover large areas of water, providing habitat for small aquatic creatures.
• Understanding the characteristics of these plants helps in identifying their roles in aquatic ecosystems.

Ans: (b)

• The Whale shark is recognized as the largest fish species, reaching lengths of up to 40 feet or more.
• Unlike many other sharks, it is a filter feeder, primarily consuming plankton and small fish.
• It is found in warm waters and is known for its gentle nature, making it a popular attraction for divers.
• Other options like the Greenland shark and Basking shark are large but do not surpass the Whale shark in size.

Ans: (b)

• Yeast is a type of fungus that plays a crucial role in baking.
• It ferments sugars in the dough, producing carbon dioxide which helps the dough rise.
• This process is essential for creating the light and fluffy texture of pizza crust.
• Other options like bacteria, virus, and algae do not perform this function in dough making.

Ans: (d)
Father is a member of joint family as well as nuclear family. Nuclear family only has father, mother and children.

Ans: (c)

• The correct answer is Mauritius, which is an island nation in the Indian Ocean.
• Port Louis serves as the administrative and political center of Mauritius.
• It is known for its harbor, which is one of the largest in the region.
• Other options like France, Germany, and Australia are not related to Port Louis as their capitals are different cities.

Ans: (d)
Dodo is an extinct flightless bird.

Ans: (c)

• Bacteria are the key players in the process of converting milk into curd. They ferment the lactose in milk, producing lactic acid.
• This lactic acid causes the milk proteins to coagulate, resulting in the formation of curd.
• While viruses and fungi do play roles in other biological processes, they do not convert milk into curd.
• Thus, the correct answer is Bacteria, as they are essential for this fermentation process.

Ans: (c)

• Venus has a very slow rotation on its axis, taking about 243 Earth days to complete one full rotation, which is longer than its orbital period of about 225 Earth days.
• This means that a single day on Venus is longer than a year on Venus.
• In contrast, other planets like Mercury and Jupiter have much shorter days compared to their years.
• Thus, the correct answer is Venus, as it uniquely has a day that exceeds its year in length.

Ans: (c)

• Treating sewage waste before it is disposed of is crucial for preventing harmful substances from entering water bodies.
• When sewage is treated, it removes pollutants and pathogens, making the water safer for the environment.
• In contrast, options A and B contribute to water pollution, while option D does not address the issue at all.
• Effective waste management practices are essential for maintaining clean water sources.

Ans: (d)

• Methane is a significant greenhouse gas that is released during the digestive processes of livestock, particularly from ruminants like cows.
• This gas is much more effective at trapping heat in the atmosphere compared to carbon dioxide, making it a potent contributor to climate change.
• Livestock farming is responsible for a large portion of global methane emissions, highlighting the environmental impact of animal agriculture.
• Reducing methane emissions is crucial for addressing climate change and promoting sustainable farming practices.

Ans: (c)

• Floods can occur when soil erosion removes the top layer of soil, which is essential for absorbing rainwater. This leads to increased runoff.
• When the soil is eroded, it can no longer hold water, causing it to flow into rivers and streams, which may overflow.
• Soil erosion can also lead to the loss of vegetation, which normally helps to slow down water and absorb it.
• Thus, the correct answer is Floods, as they are a direct consequence of soil erosion.

Ans: (b)

• The phrase "as clean as a whistle" is a common idiom used to describe something that is very clean.
• In this context, the house is being compared to a whistle, indicating it is spotless.
• Options like "glass" and "lake" do not convey the same meaning of cleanliness as effectively as "whistle".
• Thus, the correct choice is B. Whistle.

Ans: (c)
Bread is prepared from wheat. Cheese and butter are prepared from milk. 

Ans: (c)

• India hosted the Commonwealth Games in 2010, marking a significant event in sports.
• The games took place in Delhi, showcasing various sports and athletes from around the Commonwealth.
• This event was a major opportunity for India to demonstrate its organizational capabilities and hospitality.
• Hosting the Commonwealth Games helped boost tourism and infrastructure development in the country.

Ans: (b)
Preeti is chachi of Mahir.

Ans: (a)
Jagdish is the father of Mahir’s father.

Ans: (c)

• Compact Discs (CDs) are sensitive to scratches and damage, especially on the shiny side where the data is stored.
• It is important to keep them protected in their covers when not in use to avoid any potential harm.
• Using a soft cloth for cleaning is essential to prevent scratches.
• Writing on the shiny side can damage the disc, which is why options A, B, and D are correct.

Ans: (d)

• The current Prime Minister of Nepal is Sher Bahadur Deuba.
• He has held this position multiple times, showcasing his political experience.
• Deuba is a prominent leader in the Nepali Congress party.
• His leadership is significant in navigating Nepal's political landscape.

Ans: (b)

• World Book Day is celebrated on 23rd April each year.
• This date was chosen to honor the birth and death of famous authors like William Shakespeare and Miguel de Cervantes.
• The event promotes reading, publishing, and copyright awareness.
• It encourages people of all ages to engage with books and literature.

Ans: (a)

• Uddhav Thackeray is the current Chief Minister of Maharashtra, leading the state government.
• He is a prominent leader of the Shiv Sena party.
• His tenure began in November 2019, and he has been in office since then.
• Thackeray's leadership focuses on various issues, including development and social welfare in Maharashtra.

Ans: (a)

• Mirabai Chanu made history by being the first Indian to win an Olympic medal at the Tokyo 2020 Olympics.
• She achieved a silver medal in weightlifting, showcasing her incredible strength and skill.
• This victory was significant as it marked a proud moment for India in the Olympic Games.
• Chanu's achievement has inspired many young athletes in the country.

Ans: (b)

• Giorgio Chiellini was the captain of the Italian National Football Team during Euro 2020.
• He played a crucial role in leading the team to victory, showcasing strong leadership and defensive skills.
• Chiellini's experience and determination were key factors in Italy's success in the tournament.
• His leadership helped unite the team and build a strong defensive strategy that was vital for winning the championship.

Ans: (d)

Ans: (c)

• Taking deep breaths is a simple yet effective technique to manage anger. It helps to slow down your heart rate and promotes relaxation.
• When you breathe in and out slowly, it sends a signal to your brain that it's time to calm down.
• In contrast, hurting someone or breaking things only escalates the situation and can lead to more problems.
• Reading about revenge may keep you in a negative mindset rather than helping you feel better.

Ans: (c)

• It's important to congratulate your classmate on their achievement. This shows good sportsmanship and support.
• Feeling jealous or angry is not a positive response and can harm your relationship.
• By congratulating him, you foster a friendly and encouraging environment.
• Taking his trophy is not only wrong but also disrespectful to his hard work.

Ans: (c)

• Informing your teacher is the best option because they can help you safely retrieve the ball.
• Climbing over the fence or crawling under it can be dangerous and is not advisable.
• Blaming friends does not solve the problem and is not a responsible action.
• Teachers are there to assist students, so reporting the incident is the right approach.

Ans: (c)

• Engaging in stretches, dance, or yoga is a great way to stay active indoors.
• These activities help improve your flexibility, strength, and overall fitness.
• Unlike watching others or playing video games, these exercises keep your body moving.
• Staying fit is important, even when you can't go outside, so choose activities that you enjoy!

Ans: (d)

• Ranji Trophy is indeed awarded in the sport of cricket, confirming statement (i).
• Wembley Stadium is a famous football stadium located in London, making statement (ii) true.
• During the Olympic Games, it is customary for the athletes from the host country to lead the march past, validating statement (iii).
• ‘Track and Field’ is a common term used to refer to Athletics, which supports statement (iv).
• Since all four statements are correct, the answer is (D).

Ans: (d)
COCONUT. Coconuts can be used as edible seeds. They give coir from the fibrous husk.

Ans: (d)

• Crackle is the sound associated with fire, like the sound of burning wood.
• Crinkle describes the sound made by plastic or crumpled paper.
• Thus, the correct answer is option D, as it accurately matches the sounds with their sources.
• Creak refers to the noise made by a door when it opens or closes slowly.

Ans: (a)
BCDA represent the chronological order of plant growth stages.

Ans: (a)

• Statement 1 is true because one of the main purposes of a computer network is to allow sharing of resources like files, printers, and internet connections between computers.
• Statement 2 is false as it contradicts the basic functionality of a network; files stored on one computer can be accessed by other computers connected to the same network.
• Thus, the correct answer is that only Statement 1 holds true.