General Knowledge
1. Q: What is the temperature of the triple point of water on the Celsius scale ?
Options:
A. 0°C B. -273.15°C C. 100°C D. 0.01°C
Answer: D. 0.01°C
Explanation: Triple point is where solid, liquid, and gas coexist. For water, it occurs at 0.01°C and 0.00604 atm pressure.
2. Q: When were the Municipal Corporations of Calcutta and Bombay established ?
Options:
A. 1919 B. 1726 C. 1850 D. 1882
Answer: B. 1726
Explanation: First municipal corporations were set up by the British East India Company to manage civic affairs like water, sanitation, roads, and taxes.
3. Q: What type of majority is required to pass laws under Articles 2 and 3, as per Article 4(2) ?
Options:
A. Two-thirds majority B. State ratification C. Special majority D. Simple majority
Answer: D. Simple majority
Explanation: Laws under Articles 2 & 3 (admission, formation, or renaming of states) can be passed in Parliament by a simple majority; no state ratification needed.
4. Q: Which of the following is NOT a dimension measured by GII ?
Options:
A. Empowerment B. Access to clean drinking water C. Reproductive health D. Labour market participation
Answer: B. Access to clean drinking water
Explanation: GII measures reproductive health, empowerment, and labour participation. Access to clean water is a general development indicator, not part of GII.
5. Q: Where was it commemorated from 15 to 17 November 2024 ?
Options:
A. Nairobi, Kenya B. Addis Ababa, Ethiopia C. Johannesburg, South Africa D. Victoria Falls, Zimbabwe
Answer: D. Victoria Falls, Zimbabwe
Explanation: UNICEF held the event in Zimbabwe to highlight children’s rights and well-being in the region.
6. Q: Who first used the term "Biology" ?
Options:
A. Lamarck B. Darwin C. Mendel D. Aristotle
Answer: A. Lamarck
Explanation: Jean-Baptiste Lamarck first used the term in the early 19th century for the scientific study of life and living organisms.
7. Q: In entomology, what is studied ?
Options: A. Fishes B. Reptiles C. Mammals D. Insects
Answer: D. Insects
Explanation: Entomology is the branch of zoology that studies insects, including their behavior, life cycle, ecology, and classification. It is important for agriculture, medicine, and environmental research.
8. Q: Ecology of organisms is related to what ?
Options: A. Birds B. Cell structure C. Body structure and environment D. Fibers
Answer: C. Body structure and environment
Explanation: Ecology studies how an organism’s body structure and functions interact with its environment, including adaptation, survival, and relationships with other organisms.
9. Q: To which class do bees and grasshoppers belong ?
Options: A. Insects B. Microbes C. Locusts D. None of these
Answer: A. Insects
Explanation: Bees and grasshoppers are insects. They belong to the class Insecta, characterized by three body segments, six legs, antennae, and often wings.
10. Q: The rearing of silk worms is called:
Options: A. Apiculture B. Horticulture C. Pisciculture D. Sericulture
Answer: (D) Sericulture
Explanation: Sericulture is the practice of breeding and rearing silkworms for silk production. It involves cultivating mulberry plants, feeding silkworms, and harvesting silk cocoons.
11. Q: Apiculture is related to:
Options: A. Bees B. Fish C. Lac insect D. Silk worm
Answer: A. Bees
Explanation: Apiculture is the practice of rearing and maintaining honeybees to produce honey, beeswax, and other products. It supports agriculture through pollination and provides economic benefits.
12. Q: In which group do insects belong ?
Options: A. Porifera B. Coelenterata C. Annelida D. Arthropoda
Answer: D. Arthropoda
Explanation: Insects are arthropods, characterized by a segmented body, jointed legs, exoskeleton, and often wings. Arthropoda includes insects, spiders, crustaceans, and centipedes.
13. Q: How many legs does an ant have ?
Options: A, 6 B. 4 C. 8 D. 2
Answer: A. 6
Explanation: Ants are insects and, like all insects, have three pairs of legs, totaling six legs attached to the thorax
14. Q: Which of the following are insects ?
Options: A. Ant B. Cockroach C. Bedbug D. All
Answer: D. All
Explanation: Ants, cockroaches, and bedbugs are all insects. They have three body segments, six legs, and belong to the class Insecta in Arthropoda.
15. Q: In which unit can we measure food energy ?
Options: A. Calorie B. Kelvin C. Joule D. Erg
Answer: A. Calorie
Explanation: Food energy is measured in calories, representing the amount of heat required to raise the temperature of 1 gram of water by 1°C. It indicates energy provided by food.
16. Q: When the speed of a body is doubled –
Options:
A. Its acceleration doubles B. Its momentum doubles C. Its kinetic energy doubles D. Its potential energy doubles
Answer: B. Its momentum doubles
Explanation: Momentum p=mv. Doubling speed v doubles momentum. Kinetic energy KE=12mv^2 would actually become four times, not double. Potential energy depends on height, not speed.
17. Q: Which gas is present in the largest amount in air?
Options: A. Oxygen B. Carbon dioxide C. Nitrogen D. Hydrogen
Answer: C. Nitrogen
Explanation: Nitrogen makes up about 78% of Earth's atmosphere. It is inert, non-reactive, and plays a vital role in the nitrogen cycle, supporting life and ecological balance.
18. Q: A solar cell converts –
Options: A. Light energy into energy B. Solar energy into electricity C. Solar energy into sound energy D. Solar energy into heat
Answer: B. Solar energy into electricity
Explanation: A solar cell converts sunlight (solar energy) directly into electrical energy using the photovoltaic effect, generating electricity for homes, devices, and solar power systems.
19. Q: Which element is present in the largest amount in the Sun ?
Options: A. Helium B. Hydrogen C. Iron D. Silicon
Answer: B. Hydrogen
Explanation: Hydrogen makes up about 74% of the Sun’s mass. Through nuclear fusion, hydrogen atoms combine to form helium, releasing vast amounts of energy as sunlight.
20. Q: What triggers nuclear fission ?
Options: A. Electron B. Neutron C. Proton D. None of these
Answer: B. Neutron
Explanation: Nuclear fission occurs when a heavy nucleus splits into smaller nuclei after absorbing a neutron. The neutron initiates the chain reaction, releasing energy and more neutrons.
21. Q: Which fuel is commonly used to generate heat in a nuclear power station ?
Options: A. Coal B. Helium C. Heavy water D. Uranium-235
Answer: D. Uranium-235
Explanation: Uranium-235 undergoes nuclear fission in reactors, releasing large amounts of heat. This heat is used to produce steam, which drives turbines to generate electricity.
22. Q: Who discovered the solar system ?
Options: A. Copernicus B. Kepler C. Aryabhata D. Newton
Answer: A. Copernicus
Explanation: Nicolaus Copernicus proposed the heliocentric model, stating that the Sun is at the center of the solar system and planets, including Earth, revolve around it.
23. Q: Who discovered the solar system?
Options: A. Copernicus B. Kepler C. Aryabhata D. Newton
Answer: A. Copernicus
Explanation: Nicolaus Copernicus proposed the heliocentric model, stating that the Sun is at the center of the solar system and planets, including Earth, revolve around it.
24. Q: All heavy radioactive elements eventually transform into –
Options: (A) Hydrogen (B) Lead (C) Mercury (D) Krypton
Answer: (B) Lead
Explanation: Heavy radioactive elements undergo decay through alpha and beta emissions. Over time, they transform into stable nuclei, typically resulting in lead, which is non-radioactive and chemically stable.
25. Q: A light-year is a unit of –
Options: A. Time B. Distance C. Speed D. None of these
Answer: B. Distance
Explanation: A light-year is the distance that light travels in one year, approximately 9.46 trillion kilometers. It is used to measure astronomical distances between stars and galaxies.
26. Q: Which of the following is not a unit of time?
Options: A. Light-year B. Nanosecond C. Microsecond D. Second
Answer: A. Light-year
Explanation: A light-year measures distance traveled by light in one year, not time. Nanosecond, microsecond, and second are all units of time.
27. Q: In the M.K.S system, the unit of force is –
Options: A. Joule B. Newton C. Kilogram D. Newton-meter
Answer: B. Newton
Explanation: In the M.K.S system (Meter-Kilogram-Second), force is measured in newtons. One newton is the force required to accelerate a 1 kg mass by 1 m/s².
28. Q: An angstrom is a unit of –
Options: A. Time B. Mass C. Length D. Force
Answer: C. Length
Explanation: An angstrom (Å) is a very small unit of length, equal to 10⁻¹⁰ meters, commonly used to measure atomic and molecular dimensions.
Usage of Angstrom (Å):
- Measures atomic and molecular radii or diameters.
- Describes spacing between crystal planes.
- Expresses wavelengths of light.
Value: 1 Å = 10⁻¹⁰ m = 0.1 nm.
29. Q: 1 bar is equal to –
Options: A. 10⁻⁵ Pascal B. 10⁹ Pascal C. 10⁵ Pascal D. 10 Pascal
Answer: C. 10⁵ Pascal
Explanation :
A bar is a unit of pressure used in science and engineering. 1 bar equals 100,000 Pascals (10⁵ Pa), approximately equal to atmospheric pressure at sea level.
30. Q: 'Lumen' is the unit of –
Options: A. Photometry B. Wavelength C. Luminous Flux D. None of these
Answer: C. Luminous Flux
Explanation :
Lumen is the SI unit of luminous flux, which measures the total amount of visible light emitted by a source per second, showing the brightness perceived by the human eye.
31. Q: What is the SI unit of luminous intensity ?
Options:
A. Newton B. Candela C. Flux D. Neper
Answer: B, Candela
Explanation:
Luminous intensity represents the brightness of a light source in a specific direction. Its SI unit is candela (cd), the standard measure of light-emitting strength perceived by humans.