General-Studies Quiz For FCI Phase I 2022- 29th October

Q1. A block of ice is floating in a beaker containing liquid of specific gravity greaterthan one.When ice melts completely what happens to the level of liquid in the beaker?
(a) It will remain the same as before
(b) It will go down
(c) It will rise up
(d) It may or may not change depending upon size of beaker
(e) None of the above

Q2. Why do two ice blocks join to form one block when pressed together?
(a) Melting point of ice is lowered with increase in pressure
(b) Melting point of ice increases with increase in pressure
(c) Melting point of ice remains unchanged with increase in pressure
(d) Melting point of ice is 0°C
(e) None of the above

Q3. For which one of the following is capillarity not the reason?
(a) Blotting of ink
(b) Rising of underground water
(c) Spread a water drop on a cotton cloth
(d) Rising of water from the roots of a plant to its foliage
(e) None of the above

Q4. If a body is charged by rubbing it, its weight
(a) remains precisely constant
(b) increases slightly
(c) decreases slightly
(d) may increase slightly or may decrease slightly
(e) None of the above

Q5. If a rock is brought from the surface of the moon to the earth, then
(a) its mass will change.
(b) its weight will change but not its mass.
(c) both mass and weight will change.
(d) both mass and weight will remain the same.
(e) None of the above

Q6. An oil tanker is partially filled with oil and moves forward on a level road with uniform acceleration. The free surface of oil then
(a) remains horizontal.
(b) is inclined to the horizontal with smaller depth at the rear end.
(c) is inclined to the horizontal with larger depth at the rear end.
(d) assumes parabolic curves.
(e) None of the above

Q7. Organisms lacking nuclear membrane and cell organelles is called as:
(a) Prokaryotes
(b) Eukaryotes
(c) Protozoa
(d) Virus
(e) None of the above

Q8. Indane gas is a mixture of
(a) butane and hydrogen
(b) butane and oxygen
(c) butane and propane
(d) methane and oxygen
(e) None of the above

Q9. Which one of the following is not an explosive matter?
(a) Trinitro toluene
(b) Dinitro glycerine
(c) Cyclo Trimethylene trinitramine
(d) Nitrochloroform
(e) None of the above

Q10. The symbol of SI unit of inductance is H. It stands for
(a) Holm
(b) Halogen
(c) Henry
(d) Hertz
(e) None of the above

Solutions

S1.Ans. (c)
Sol. The specific gravity of liquid is greater than one and as the specific gravity of water is 1 hence the level of liquid in the beaker will rise up.

S2.Ans. (a)
Sol. When two ice blocks are pressed together, little heat is generated due to pressure and of friction, which just melts the outer layer. When that melts, friction decreases and due to the low temperature of both the ice cubes, the water just refreezes.

S3.Ans. (b)
Sol. Capillary action, or capillarity, is a phenomenon where liquid spontaneously rises in a narrow space such as a thin tube, or in porous materials such as paper or in some non-porous materials such as liquefied carbon fibre. This effect can cause liquids to flow against the force of gravity or the magnetic field induction. In blotting of ink, spread of water drop on a cotton cloth and the rising of water from the roots of a plant to its foliage.

S4.Ans. (d)
Sol. If a body is charged by rubbing it, its weight may increase slightly or may decrease slightly.

S5.Ans. (b)
Sol. If a rock is brought from the surface of the moon to the earth, its weight will change but not its mass. Mass is a invariant physical quantity whereas weight of a body (w = mg) is variable as the value of acceleration due to gravity (g) changes.

S6.Ans. (c)
Sol. The two points in the same horizontal line do not have equal pressure if the liquid is accelerated horizontally. The free surface of oil is inclined to the horizontal with larger depth at the rear end as the oil tanker is moving forward with uniform acceleration.

S7.Ans. (a)
Sol. Prokaryotes are organisms unicellular having primitive type of nucleus but lacking nuclear membrane and membrane bound cell organelles.

S8.Ans. (c)
Sol. L.P.G. is a mixture of Propane and Butane and Iso butane of hydrocarbons. It is used for Cooking in Houses. These Gases are in liquid form at a Very high temperature. This mixture of liquid hydrocarbons is called as L.P.G.

S9.Ans. (d)
Sol. Nitrochloroform is a broad-spectrum antimicrobial which is used as a fungicide, herbicide, insecticide and nematicide. It is also known as Chloropicrin.

S10.Ans. (c)
Sol. The henry (H) is the Standard International (SI) unit of inductance. Reduced to base SI units, one henry is the equivalent of one kilogram meter squared per second squared per ampere squared (kg m 2 s -2 A -2).