General-Studies Quiz For FCI Phase I 2022- 27th October

Q1. Light year is a unit for measurement of
(a) age of universe
(b) very small time intervals
(c) very high temperature
(d) very large distance
(e) None of the above

Q2. Two identical solid pieces, one of gold and other of silver, when immersed completely in water exhibit equal weights. When weighed in air (given that density of gold is greater tan that of silver)
(a) the gold piece will weigh more
(b) the silver piece will weigh more
(c) both silver and gold pieces weigh equal
(d) weighing will depend on their masses
(e) None of the above

Q3. Scent sprayer is based on
(a) Charles’s law
(b) Boyle’s law
(c) Archimedes’ principle
(d) Bernoulli’s principle
(e) None of the above

Q4. The Hooke’s law is valid for
(a) only proportional region of the stress-strain curve
(b) entire sress-strain curve
(c) entire elastic region of the stress-strain curve
(d) elastic as well as plastic region of the stress-strain curve
(e) None of the above

Q5. Cooling is not done by
(a) flow of water
(b) release of compressed gas
(c) burning cooking gas
(d) melting the solid
(e) None of the above

Q6. When ice melts, then the
(a) volume increases
(b) volume decreases
(c) mass increases
(d) mass decreases
(e) None of the above

Q7. In living cells synthesis of ribonucleic acid (RNA) takes place in:
(a) Cytoplasm
(b) Nucleus
(c) Golgi body
(d) Nephron
(e) None of the above

Q8. Due to the discovery of one of the following in 1980, the evolution was termed as RNA world:
(a) RNA present in some viruses as genetic material
(b) RNA has enzymatic property
(c) RNA is found in all living cells
(d) RNA is found to be associated with protein synthesis
(e) None of the above

Q9. The lipids and proteins essential for the formation of cell membrane are synthesized in
(a) Golgi bodies
(b) Mitochondria
(c) Endoplasmic reticulum
(d) Lysosomes
(e) None of the above

Q10. The oxygen rich blood rich from lungs comes to the heart in
(a) Left atrium
(b) Right atrium
(c) Right ventricle
(d) Left ventricle
(e) None of the above

Solutions

S1.Ans. (d)
Sol. The light-year is a unit of length used to express astronomical distances. 9.46 trillion kilometres = 9.46 × 1012 kms or 5.88 trillion miles = 5.88 × 1012 mi.

S2.Ans. (a)
Sol. When the two materials were in the water, the less dense material (silver) occupies a greater volume than the more dense gold. So, it has more up thrust from the water and, although they both show the same weight under water, there is more mass of silver present. Hence, out of the water then, the silver would weigh more than the gold.

S3.Ans. (d)
Sol. Bernoulli’s principle states that an increase in the velocity of the fluid during the flow results in simultaneous decrease in the pressure of fluid. The converse is also true, when pressed, low pressure is created in scent bottles. Due to this, liquid rises up the tube following Bernoulli’s principle and is pushed out through nozzle in the form of spray.

S4.Ans. (a)
Sol. Hooke’s law is only really valid up to the proportionality limit, and this is simply because Hooke’s law is a proportionality law, i.e. Force is proportional to extension.

S5.Ans. (c)
Sol. Cooling is not done by burning cooking gas. While, flow of water, release of compressed gas and melting solids results in cooling by absorbing heat from the surroundings, thus, lowering the temperature.

S6.Ans. (b)
Sol. When ice melts, density increases so volume decreases. That is why, ice floats on water. Mass = volume × density

S7.Ans. (b)
Sol. The process of copying genetic information from one strand of the DNA into RNA is termed as transcription. It takes place in nucleus with the help of RNA polymerase.

S8.Ans. (b)
Sol. RNA was the first genetic material. There is now enough evidence to suggest that essential life processes (such as metabolism, translation, splicing, etc.) evolved around RNA. RNA used to act as a genetic material as well as a catalyst. But, RNA being a catalyst was reactive and hence unstable. Therefore, DNA has evolved from RNA with chemical modifications that make it more stable.

S9.Ans. (c)
Sol. The proteins are synthesized with the help of ribosome on RER and lipids are synthesized by SER. Post translational modifications take place in golgi body which are then sent to their respective destinations with the help of vesicles.

S10.Ans. (a)
Sol. The Oxygen rich blood from lungs comes to the heart in left atrium, the left chamber of the heart.