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Generate QuizSpace – Medium Level – GK Questions
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What is the estimated age of the universe according to the Big Bang theory?
- 4.5 billion years
- 13.8 billion years
- 10 billion years
- 20 billion years
Answer: 13.8 billion years
Scientific estimates place the age of the universe at approximately 13.8 billion years, based on observations of the cosmic microwave background radiation and the expansion rate of the universe.
A satellite that remains fixed over a specific point on the Earth's equator is in a _______ orbit.
- Polar
- Geostationary
- Low Earth
- Sun-synchronous
Answer: Geostationary
A Geostationary Orbit (GEO) is a circular orbit 35,786 km above the Earth's equator, following the direction of Earth's rotation. An object in such an orbit has an orbital period equal to the Earth's rotational period, appearing stationary to ground observers.
Venus rotates on its axis from east to west, unlike most other planets.
- True
- False
Answer: True
Venus has a retrograde rotation, meaning it spins in the opposite direction to most other planets (east to west). This causes the Sun to rise in the west and set in the east on Venus.
Who was the first person to walk on the Moon?
- Buzz Aldrin
- Michael Collins
- Neil Armstrong
- Yuri Gagarin
Answer: Neil Armstrong
Neil Armstrong was the first human to step onto the lunar surface on July 20, 1969, during the Apollo 11 mission, famously stating, 'That's one small step for man, one giant leap for mankind.'
Which country's space agency is known as CNSA?
- Canada
- China
- France
- Russia
Answer: China
CNSA stands for China National Space Administration. It is responsible for China's national space program, including the Tiangong space station and Chang'e lunar missions.
Halley's Comet is visible from Earth approximately every how many years?
- 50 years
- 75-76 years
- 100 years
- 150 years
Answer: 75-76 years
Halley's Comet is a short-period comet visible from Earth every 75–76 years. It was last seen in 1986 and is expected to return in 2061.
A light year is a unit of time.
- True
- False
Answer: False
A light year is a unit of distance, not time. It is the distance that light travels in a vacuum in one Julian year (approximately 9.46 trillion kilometers).
What is the primary goal of ISRO's Gaganyaan mission?
- To land on the Moon
- To send humans to space
- To launch a Mars rover
- To build a space station
Answer: To send humans to space
Gaganyaan is India's first human spaceflight programme, aiming to demonstrate human spaceflight capability by launching a crew of 3 members to an orbit of 400 km for a 3-day mission.
INSAT series of satellites are primarily used for _______ purposes.
- Interplanetary exploration
- Communication and Meteorology
- Military surveillance only
- Lunar mapping
Answer: Communication and Meteorology
The Indian National Satellite (INSAT) system is one of the largest domestic communication satellite systems in the Asia-Pacific region, used for telecommunications, television broadcasting, and meteorology.
A black hole's gravity is so strong that not even light can escape from it once it crosses the event horizon.
- True
- False
Answer: True
The event horizon is the boundary around a black hole beyond which nothing, including light, can escape the gravitational pull. This is a defining characteristic of black holes.
Where is the majority of the asteroid belt located?
- Between Earth and Mars
- Between Mars and Jupiter
- Between Jupiter and Saturn
- Beyond Neptune
Answer: Between Mars and Jupiter
The Main Asteroid Belt is a region of space between the orbits of Mars and Jupiter where most of the asteroids in our Solar System are found.
The headquarters of ISRO is located in _______.
- Sriharikota
- Thiruvananthapuram
- Bengaluru
- Ahmedabad
Answer: Bengaluru
ISRO headquarters is in Bengaluru, Karnataka. Sriharikota is the launch site (SDSC SHAR), and Thiruvananthapuram houses VSSC (Vikram Sarabhai Space Centre).
What was the primary objective of India's Mangalyaan mission (Mars Orbiter Mission)?
- To search for water on Mars
- To study Martian surface features and atmosphere
- To land a rover on Mars
- To establish a colony on Mars
Answer: To study Martian surface features and atmosphere
Launched in 2013, Mangalyaan's main goals were to explore Mars' surface features, morphology, mineralogy, and Martian atmosphere, particularly methane detection. It did not involve landing.
The full form of PSLV, a reliable launch vehicle of ISRO, is _______.
- Polar Satellite Launch Vehicle
- Planetary Satellite Launch Vehicle
- Polar Space Launch Vehicle
- Private Satellite Launch Vehicle
Answer: Polar Satellite Launch Vehicle
PSLV stands for Polar Satellite Launch Vehicle. It is known as the 'Workhorse of ISRO' for its ability to launch satellites into polar orbits.
Which planet has the largest number of confirmed moons in the solar system (as of 2024-2025 data)?
- Jupiter
- Saturn
- Uranus
- Neptune
Answer: Saturn
Saturn recently overtook Jupiter to have the most confirmed moons (over 140), surpassing Jupiter (which has over 90). This status changes occasionally with new discoveries, but Saturn currently holds the record.
The first satellite launched by India was named _______.
- Bhaskara
- Aryabhata
- Rohini
- INSAT
Answer: Aryabhata
Aryabhata was India's first satellite, launched on April 19, 1975, from the Soviet Union using a Kosmos-3M rocket. It was named after the ancient Indian mathematician Aryabhata.
Which is the hottest planet in the solar system, despite not being the closest to the Sun?
- Mercury
- Venus
- Mars
- Jupiter
Answer: Venus
Venus is the hottest planet due to its thick atmosphere composed mainly of carbon dioxide, which creates a strong greenhouse effect, trapping heat. Mercury is closer but lacks an atmosphere to retain heat.