General-Studies Quiz For FCI Phase I 2022- 20th December

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. Which one of the following types of tissues will have contractile proteins?
(a) Nervous tissue
(b) Muscle tissue
(c) Bone tissue
(d) Blood tissue
(e) All of the above

Q5. ‘Yellow Cake’ an item of smuggling across border is
(a) a crude form of heroin
(b) a crude form of cocaine
(c) uranium oxide
(d) unreformed gold
(e) All of the above

Q6. A radioactive substance has a half life of four months. Three-fourth of the substance would decay in
(a) 3 months
(b) 4 months
(c) 8 months
(d) 12 months
(e) None of the above

Q7. Which of the following is/are the main absorbing organ/ organs of plants?
(a) Root only
(b) Leaf only
(c) Root and leaf only
(d) Root, leaf and bark
(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. (b)
Sol. Muscal And Skeletal Tissues Have Contracile Protiens.

S5.Ans. (c)
Sol. Yellow cakes generally denotes various compounds of uranium like uranium oxides.

S6.Ans. (c)
Sol. As it is given that half life of given substance is 4 months. The amount of substance left after 4 months = 1/2 The amount of substance left after 8 months = 1/4 Therefore the amount of substance decay in 8 months = (1 – 1/4) = 3/4

S7.Ans. (c)
Sol. Major Organs of most plants include roots, stems, and leaves. A root is a complex organ consisting of several types of tissue absorbing water and minerals: Thin-walled epidermal cells and root hairs are well suited to absorb water.

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.