GK Olympiad Model Test Paper -1 | GK Olympiad for Class 4 PDF Download

Ans: (c)

• Saliva is a crucial digestive juice that helps break down food in the mouth.
• It contains enzymes that start the digestion process, making it easier for our body to absorb nutrients.
• Other options like blood and plasma are not digestive juices; they serve different functions in the body.
• Thus, saliva is the correct answer as it plays a direct role in digestion.

Ans: (c)

• Canning is a food preservation technique where food is placed in a sealed, airtight container.
• This container is then sterilized to eliminate bacteria and other microorganisms.
• By doing this, the food can be stored for a long time without spoiling.
• Other methods like dehydration and freezing do not involve sealing in an airtight container.

Ans: (c)

• The Electrocardiograph is the device that records the heart's electrical activity.
• It helps in diagnosing heart conditions by showing the heart's rhythm and electrical impulses.
• Other options like Sphygmomanometer measure blood pressure, while Nebulizer is for respiratory issues.
• Stethoscope is used to listen to heartbeats but does not record electrical activity.

Ans: (b)

• Mimicry is when an organism looks like something else to avoid predators or to attract prey.
• The stick insect has evolved to resemble a stick, which helps it blend into its environment.
• This camouflage is a survival strategy, making it harder for predators to spot the insect.
• Other options like migration, hibernation, and adaptation do not describe this specific behavior.

Ans: (a)

• Pondweed is classified as an aquatic plant, meaning it grows in or near water.
• These plants are typically found in lakes, ponds, and slow-moving rivers.
• They play a crucial role in the ecosystem by providing habitat and food for various aquatic organisms.
• Unlike mangrove or desert plants, pondweed is specifically adapted to thrive in water environments.

Ans: (b)

• Canada's flag is easily recognizable with its red and white colors and a prominent maple leaf.
• The flag represents the national identity of Canada and is a symbol of unity and pride for Canadians.
• Other options like Mauritius, Bhutan, and Cambodia have distinct flags that do not resemble Canada's.
• Thus, the correct answer is Canada, as indicated by the flag in the picture.

Ans: (a)

• Borobudur is a significant Buddhist temple known for its stunning architecture and historical importance.
• It is located in Indonesia, specifically on the island of Java.
• This temple is a UNESCO World Heritage Site and attracts many visitors each year.
• Its unique design features numerous stupas and intricate carvings that tell stories from Buddhist teachings.

Ans: (b)

• Nelson Mandela is renowned for his role in fighting against apartheid in South Africa.
• He became the first black President of South Africa in 1994, symbolizing a significant change in the country's history.
• Mandela's efforts in promoting social justice and human rights have made him a global icon.
• His legacy continues to inspire movements for equality and freedom worldwide.

Ans: (a)
The process of becoming plant from seed is: Seed →  Seedling → Sapling → Plant

Ans: (b)

• The periscope is a device that allows submarines to see above the water while remaining submerged.
• It consists of a long tube with mirrors or prisms that reflect light, enabling the crew to observe the surface.
• This is crucial for navigation and spotting other vessels or land while staying hidden underwater.
• Other options like endoscope and electroscope serve different purposes and are not designed for this function.

Ans: (d)

• The gas responsible for the fizz in soft drinks is carbon dioxide.
• When carbon dioxide is dissolved in the liquid under pressure, it forms carbonic acid, which gives the drink its tangy taste.
• Upon opening the bottle, the pressure is released, allowing the gas to escape, creating the bubbles we see.
• Other gases like oxygen, nitrogen, and hydrogen do not provide the same carbonation effect in beverages.

Ans: (c)
Lizards can drop their tails when they sense threat around.

Ans: (b)

• The correct answer is Clouds because they are not a type of precipitation.
• Precipitation refers to any form of water, liquid or solid, that falls from the atmosphere to the Earth's surface.
• Examples of precipitation include rain, sleet, and snow.
• Clouds are simply collections of water vapor and do not fall to the ground as precipitation.

Ans: (b)

• Microorganisms play a crucial role in the treatment of sewage water. They help break down organic matter, making the water cleaner and safer.
• Using insecticides or herbicides is not effective for treating sewage, as they target pests and plants, not waste.
• Detergents can actually harm the environment and are not suitable for sewage treatment.
• Thus, the best option for treating sewage is through the natural processes facilitated by microorganisms.

Ans: (b)

• Acid rain is a significant factor that damages the Taj Mahal. It occurs when pollutants in the air mix with rainwater, creating acidic precipitation.
• This type of rain can erode the marble and other materials used in the monument, leading to deterioration.
• While the greenhouse effect and soil erosion can impact the environment, they are not the primary threats to the Taj Mahal.
• Urban development can also pose risks, but acid rain is the most direct cause of damage to this iconic structure.

Ans: (b)

• Give someone the cold shoulder is an idiom that refers to the act of deliberately ignoring someone. This means you are not acknowledging them or their presence.
• It is often used in social situations where one person is upset with another and chooses to not engage with them.
• This expression highlights a form of social rejection or distancing.
• In contrast, the other options do not accurately capture the meaning of this idiom.

Ans: (a)

• The novel 'Oliver Twist' was written by Charles Dickens, a famous English author known for his vivid characters and depictions of Victorian society.
• This book, published in 1837, tells the story of a young orphan named Oliver who faces many challenges.
• Charles Dickens is celebrated for his ability to highlight social issues through his storytelling.
• Other authors listed, like J.K. Rowling and Lewis Carroll, are known for different works and genres.

Ans: (c)

• Phulkari is a vibrant and traditional form of embroidery that originates from Punjab.
• This art form is characterized by its colorful floral patterns and is often used to adorn shawls, dupattas, and other garments.
• While Kashida, Chikankari, and Zardosi are also forms of embroidery, they are associated with different regions and styles.
• Phulkari holds a special place in Punjabi culture, symbolizing heritage and craftsmanship.

Ans: (c)

• Ravi Kumar Dahiya is a prominent athlete known for his achievements in wrestling.
• He received the Major Dhyan Chand Khel Ratna Award, which is India's highest sporting honor.
• This award recognizes his exceptional performance and contributions to the sport.
• Wrestling is a traditional sport in India, and Dahiya has made the country proud with his accomplishments.

Ans: (c)

• The capital city of Japan is Tokyo, which is a major cultural and economic center.
• Tokyo is known for its modern architecture, historical sites, and vibrant lifestyle.
• It is one of the most populous cities in the world, attracting millions of visitors each year.
• Other options like Beijing, Seoul, and Bangkok are capitals of different countries, not Japan.

Ans: (a)

• Mithali Raj has made history by being the first woman cricketer to play in six Cricket World Cups, showcasing her incredible talent and longevity in the sport.
• This achievement highlights her dedication and skill, making her a role model for aspiring cricketers.
• Participating in multiple World Cups is a significant milestone, reflecting her consistent performance over the years.
• Her contribution to women's cricket has been immense, inspiring many young players to pursue the game.

Ans: (a)

• CODA is the film that won the Best Picture Award at the 94th Academy Awards.
• This film tells the story of a child of deaf adults, highlighting themes of family and communication.
• The awards ceremony took place in March 2022, celebrating various achievements in the film industry.
• Other films nominated included Don’t Look Up, Dune, and The Power of the Dog, but CODA took home the top honor.

Ans: (b)

• Vinai Kumar Saxena is the current Lieutenant Governor of Delhi, appointed to oversee the administration of the National Capital Territory.
• The role of the Lieutenant Governor includes ensuring the implementation of laws and policies in Delhi.
• Arvind Kejriwal is the Chief Minister, while Amit Shah is the Union Home Minister, but they do not hold the position of Lieutenant Governor.
• Thus, the correct answer is Vinai Kumar Saxena.

Ans: (a)

• The theme of World Health Day 2022 was "Our Planet, Our Health."
• This theme emphasizes the connection between the health of our planet and the health of its inhabitants.
• It highlights the importance of environmental protection and its impact on human health.
• By focusing on this theme, the aim was to raise awareness about the need for sustainable practices to ensure a healthier future for everyone.

Ans: (b)

• The latest Indian 10 denomination banknote features the Sun Temple located in Konark.
• This temple is a UNESCO World Heritage Site and is famous for its stunning architecture and intricate carvings.
• The choice of the Sun Temple symbolizes India's rich cultural heritage and historical significance.
• Other options like the Lotus Temple and Taj Mahal are also iconic, but they are not featured on this specific banknote.

Ans: (a)

• When dirt gets into your eyes, the best response is to rinse your eyes with water after ensuring your hands are clean.
• Using a toothpick or rubbing your eyes can cause more harm than good.
• Soapy water can irritate your eyes, making the situation worse.
• Flushing with water helps to safely remove the dirt without causing injury.

Ans: (a)

• Intentionally committing a foul is considered bad sportsmanship because it shows a lack of respect for the game and the other players.
• Good sportsmanship involves fair play, which means following the rules and treating opponents with respect.
• Actions like shaking hands or respecting the referee are examples of positive sportsmanship.
• Therefore, the correct answer is A, as it reflects a negative attitude towards the sport.

Ans: (c)

• Addressing the situation is important when you see someone being mean. Instead of ignoring it or retaliating, trying to make the person understand why their words are hurtful is a constructive approach.
• This not only helps your friend but also encourages a more positive environment among your group.
• Leaving the game or responding with mean comments could escalate the situation, while ignoring it does not resolve the issue.
• By choosing to communicate, you promote kindness and respect in your friendship circle.

Ans: (b)

• It is crucial to seek medical attention immediately after a dog bite. This is because dog bites can lead to serious infections or diseases, such as rabies.
• Washing the wound with soap and water is important, but a doctor can provide the necessary treatment, including vaccinations or antibiotics.
• Ignoring the bite or treating it with inappropriate methods, like kerosene or dirt, can worsen the situation.
• Always take dog bites seriously and consult a healthcare professional for proper care.

Ans: (a)

• Admitting your mistake and saying sorry is the right thing to do. It shows honesty and responsibility.
• Being truthful helps maintain trust in your relationship with your cousin.
• Options B, C, and D involve dishonesty or avoiding responsibility, which can damage your relationship.
• Apologizing can also lead to a solution, like helping to replace the book.

Ans: (d)
Monkey and Koala both come under the category of arboreal animals.

Ans: (d)
PowerPoint is a presentation software.

Ans: (d)

• Statement (i) is true as the Olympic Flag was indeed first flown in the 1920 Games.
• Statement (ii) is also correct; the first Winter Olympics were held in 1924.
• Statement (iii) is accurate as well; the United States has hosted the Summer Olympics four times.
• Since all three statements are correct, the answer is (D), which includes all of them.

Ans: (b)
The magnetic field deflects the solar winds from reaching the Earth’s surface.

Ans: (b)
Mercury is not the hottest planet due to absence of atmosphere that can retain heat of the sun.