General-Studies Quiz For FCI Phase I 2022- 7th October

Q1. When a ship floats on water
(a) it displaces no water
(b) the mass of water displaced is equal to the mass of the ship
(c) the mass of water displaced is lesser than the mass of the ship
(d) the mass of water displaced is greater than the mass of the ship
(e) None of the above

Q2. A long jumper runs before jumping because he
(a) covers a greater distance
(b) maintains momentum conservation
(c) gains energy by running
(d) gains momentum
(e) None of the above

Q3. Which of the following blood group is called universal donor?
(a) A+
(b) B+
(c) O+
(d) AB+
(e) None of the above

Q4. In plants, which one of the following tissues is dead?
(a) Parenchyma
(b) Collenchyma
(c) Sclerenchyma
(d) Phloem
(e) None of the above

Q5. A body is thrown vertically upwards and then falls back on the ground. Its potential energy is maximum
(a) on the ground
(b) at the maximum height
(c) during the return journey
(d) both on the ground and at the maximum height
(e) None of the above

Q6. Candles contains a mixture of
(a) Bees wax and paraffin wax
(b) Bees wax and stearic acid
(c) Paraffin wax and stearic acid
(d) Higher fatty acid
(e) None of the above

Q7. Which one of the following noble gases is not found in the atmosphere?
(a) Argon
(b) Krypton
(c) Radon
(d) Xenon
(e) None of the above

Q8. Which gas is responsible for the swelling of bread?
(a) Oxygen
(b) Carbon monoxide
(c) Carbon dioxide
(d) Ammonia
(e) None of the above

Q9. A jet engine works on the principle of conservation of
(a) linear momentum
(b) angular momentum
(c) energy
(d) mass
(e) None of the above

Q10. Which of the following is used as a preservative to protect processed food?
(a) Sodium sulphate
(b) Saccharin
(c) BHT
(d) Sodium metabisulphite
(e) None of the above

Solutions 

S1.Ans. (b)
Sol. According to Archimede’s principle when a body is immersed fully or partially in a liquid, it experiences an upward force that is equal to the weight of the fluid displaced by it therefore the mass of water displaced is equal to the mass of the ship.

S2.Ans. (b)
Sol. A long jumper runs before jumping to maintain momentum. This helps in jumping higher and longer because of inertia of motion gained due to the motion.

S3.Ans. (c)
Sol. A person containing O+ blood group does not possess any antigen to elicit any antibody reaction in the acceptor. Thus, a person with O+ is the universal donor. AB+ on the other hand is a universal acceptor.

S4.Ans. (c)
Sol. Sclerenchyma tissues are found in hard parts of plant body, in cortex, pith, hypodermis, in the pulp of fruits. Young cells are living and they have protoplasm. But matured cells becomes dead due to deposition of secondary walls. They give mechanical support, strength and rigidity to the plant body.

S5.Ans. (b)
Sol. We know that Potential energy = mgh Hence potential energy is maximum at the maximum height.

S6.Ans. (c)
Sol. Candles contain a mixture of paraffin wax and stearic acid.

S7.Ans. (c)
Sol. All noble gases are present in Earth’s atmosphere except for helium and radon. Noble gases are group of highly unreactive elements placed in the Gr-18 (VIIIB) in the periodic table.

S8.Ans. (c)
Sol. Carbon dioxide is responsible for swelling of bread.

S9.Ans. (a)
Sol. A jet engine works on the principle of conservation of linear momentum. In jet engines, a large volume of gases produced by the combustion of fuel is allowed to escape through a jet in the backward direction. Due to the very high speed or velocity, the backward rushing gases have a very large momentum.

S10.Ans. (d)
Sol. Sodium metabisulphite (Na2S2O5) inhibits growth of bacteria and fungi including mold. It is an artificial food additive.