General-Studies Quiz For FCI Phase I 2022- 4th December

Q1. When items or jewellery made of metals such as copper or nickel are placed in a solution having a salt of gold, a thin film of gold is deposited by
(a) cooling to below 0°C
(b) heating above 100°C
(c) passing an electric current
(d) just keeping it for 10 min
(e) None of the above

Q2. What does airbag, used in safety of car driver, contain?
(a) Sodium bicarbonate
(b) Sodium azide
(c) Sodium nitrite
(d) Sodium peroxide
(e) None of the above

Q3. Which one of the following is responsible for converting milk into curd?
(a) Fungi
(b) Bacteria
(c) Virus
(d) None of these
(e) None of the above

Q4. Sweating during exercise indicates operation of which one of the following processes in the human body?
(a) Phagocytosis
(b)Homeostasis
(c) Enthalpy
(d) Osmoregulation
(e) None of the above

Q5. The plant dye Henna imparts orange-red colour to skin and hairs due to its reaction with which of the following?
(a) Proteins and amino acids
(b) Lipids
(c) Carbohydrates
(d) Nucleic acids
(e) None of the above

Q6. Which of the following represents billion characters?
(a) Terabytes
(b) Megabytes
(c) Kilobytes
(d) Gigabytes
(e) None of the above

Q7. DVD technology uses an optical media to store the digital data. DVD is an acronym for
(a) Digital Vector Disc
(b) Digital Volume Disc
(c) Digital Versatile Disc
(d) Digital Visualization Disc
(e) None of the above

Q8. Indian government’s target for power production from small hydro projects by the year 2022 is
(a) 1 Giga-Watt
(b) 5 Giga-Watt
(c) 10 Giga-Watt
(d) 15 Giga-Watt
(e) None of the above

Q9. Which one of the following is responsible for the stimulating effect of tea?
(a) Tannin
(b) Steroid
(c) Alkaloid
(d) Flavonoid
(e) None of the above

Q10. Which one among the following is a sin smelling agent added to LPG cylinder to help the detection of gas leakage?
(a) Ethanol
(b) Thioethanol
(c) Methane
(d) Chloroform
(e) None of the above

Solutions

S1.Ans. (c)
Sol. The process of depositing a thin layer of one metal over the surface of other metal by the process of electrolysis is known as electroplating. Hence, when items or jewellery made of metals such as copper or nickel are placed in a solution having a salt of gold, a thin film of gold is deposited by passing an electric current.

S2.Ans. (b)
Sol. Airbag used for safety and protection of car driver possesses sodium azide.

S3.Ans. (b)
Sol. Curd is made due to the chemical reaction between lactic acid bacteria and casein.

S4.Ans. (b)
Sol. Homeostatic regulation includes sweating. It is the main process through which the body gets coolness.

S5.Ans. (a)
Sol. Henna (Lawsonia intermis) is a flowering plant. It is used to dye skin, hair, fingernails, leather and wood. Colouring feature of henna is due to lawsone, an organic compound that shows affinity for proteins and amino acids in animals.

S6.Ans. (d)
Sol. A gigabyte is a unit of data storage capacity that is roughly equivalent to 1 billion bytes.

S7.Ans. (c)
Sol. DVD stands for “digital versatile disc” or “digital video disc” is a digital optical disc storage format invented and developed by Philips, Sony, Toshiba, and Panasonic in 1995.

S8.Ans. (b)
Sol. Indian government’s target for power production from small hydro projects by the year 2022 is 5 Giga-Watt. On the other hand, from solar power, it is 100 GW, 60 GW from wind, 10 GW from biomass, according to the ministry of new and renewable energy.

S9.Ans. (c)
Sol. The stimulating nature of tea is due to alkaloid caffeine found in tea. Caffeine is bitter due to white crystalline xanthine alkaloid.

S10.Ans. (b)
Sol. Ethyl mercaptan or thioethanol (C2H5SH) is added during filling of LPG cylinders. It is a strong smelling compound and help in the detection of gas leakage.