Q1. The unit used to measure the intensity level (loudness) of sound is:
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Answer: D. Decibel
Sound intensity level is expressed in decibels (dB).
SSC CGL General Awareness Beginner Practice Set 3
25 beginner questions. Tap an option to check it, or open “Show answer” for the explanation.
Topics: Physics - Sound, Chemistry - Atomic Structure, Sports, Chemistry - Atoms & Molecules, Chemistry - Metals & Non-metals, Physics - Units & Measurement, Static GK, Biology - Cell & Tissues, Chemistry - Environmental Chemistry, Firsts in India, Chemistry - Carbon Compounds, Physics - Electricity, Physics - Force & Laws of Motion, Important Days, Chemistry - Chemical Reactions, World Geography, Physics - Gravitation, Biology - Plant Physiology, Medieval History, Biology - Nutrition & Vitamins, Chemistry - Matter & States
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Q2. What is the electronic configuration of sodium (atomic number 11)?
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Answer: C. 2, 8, 1
11 electrons fill as K = 2, L = 8, M = 1.
Q3. In which sport is a score of zero called 'love'?
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Answer: A. Tennis
In tennis, a score of zero is called 'love'.
Q4. What is the molar mass of water (H2O)? (H = 1, O = 16)
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Answer: B. 18 g/mol
2(1) + 16 = 18, so the molar mass of water is 18 g/mol.
Q5. Which is the hardest natural substance?
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Answer: B. Diamond
Diamond is the hardest natural substance known.
Q6. Which instrument is used to measure atmospheric pressure?
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Answer: B. Barometer
A barometer measures atmospheric pressure.
Q7. What is the National Animal of India?
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Answer: A. Tiger
The Royal Bengal Tiger is India's National Animal. Project Tiger was launched in 1973.
Q8. Proteins are synthesised in the cell at which of these structures?
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Answer: C. Ribosomes
Ribosomes are the sites of protein synthesis, reading mRNA to join amino acids.
Q9. Depletion of the ozone layer is mainly caused by:
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Answer: A. Chlorofluorocarbons (CFCs)
CFCs release chlorine in the stratosphere, which destroys ozone.
Q10. Who was the first Indian to win a Nobel Prize?
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Answer: A. Rabindranath Tagore
Rabindranath Tagore became the first Indian Nobel laureate, winning the Literature prize in 1913.
Q11. What is the valency of carbon?
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Answer: C. 4
Carbon has 4 valence electrons and shows a valency of 4.
Q12. Who was the first President of India?
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Answer: D. Dr. Rajendra Prasad
Dr. Rajendra Prasad was the first President of India, serving from 1950 to 1962.
Q13. Isotopes of an element have:
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Answer: C. The same atomic number but different mass numbers
Isotopes have the same number of protons (atomic number) but different numbers of neutrons, so different mass numbers.
Q14. According to Ohm's law, at constant temperature the current through a conductor is:
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Answer: B. Directly proportional to the potential difference
Ohm's law: V = IR, so I is directly proportional to V at constant temperature.
Q15. Ball bearings are used in machines mainly to:
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Answer: B. Reduce friction
Ball bearings replace sliding friction with smaller rolling friction.
Q16. National Youth Day, observed on 12 January, is the birth anniversary of:
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Answer: B. Swami Vivekananda
National Youth Day is celebrated on 12 January, the birth anniversary of Swami Vivekananda.
Q17. When a magnesium ribbon burns in air with a dazzling white flame, it forms:
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Answer: A. Magnesium oxide
2Mg + O2 -> 2MgO; the white powder is magnesium oxide.
Q18. The Prime Meridian (0 degrees longitude) passes through which place?
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Answer: A. Greenwich
The Prime Meridian passes through Greenwich, London.
Q19. How many players of a team are on the court in a kabaddi match?
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Answer: B. 7
A kabaddi team has 7 players on the court. Kho-kho has 9 players on the field.
Q20. All bodies dropped from the same height in a vacuum reach the ground:
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Answer: C. At the same time
Without air resistance, all bodies fall with the same acceleration g and land together.
Q21. Sound cannot travel through:
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Answer: D. Vacuum
Sound is a mechanical wave and needs a medium, so it cannot travel through a vacuum.
Q22. Which gas is released as a by-product of photosynthesis?
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Answer: D. Oxygen
Photosynthesis releases oxygen, which comes from the splitting of water.
Q23. In the First Battle of Panipat (1526), Babur defeated:
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Answer: C. Ibrahim Lodi
Babur defeated Ibrahim Lodi at Panipat in 1526, which laid the foundation of the Mughal Empire.
Q24. Deficiency of iron in the diet mainly causes:
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Answer: D. Anaemia
Iron is a component of haemoglobin, so its deficiency causes anaemia.
Q25. Which of the following is a compound?
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Answer: D. Water
Water (H2O) has hydrogen and oxygen combined in a fixed ratio; the others are mixtures.