Q1. 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
Q2. The application of couple can be utilised in
(a) the steering wheel of the vehicle
(b) Opening and closing of a water tap
(c) Unlocking the locker by using a key
(d) all of the above
(e) None of the above
Q3. The value of quantity G in the law of gravitation
(a) depends on mass of the Earth only
(b) is independent of mass and radius of the Earth
(c) depends on both mass and radius of the Earth
(d) depends on radius of the Earth
(e) None of the above
Q4. Milk is a
(a) mixture
(b) element
(c) metal
(d) None of these
(e) None of the above
Q5. Which of the following statements is correct?
(a) Most of food preparations are colloidal in nature
(b) Most drugs, which are insoluble in water, are administered as colloidal dispersions
(c) Latex is colloidal solution of negatively charged colloidal rubber particles
(d) All of the above
(e) None of the above
Q6. Which of the following is not a vector quantity?
(a) Velocity
(b) Speed
(c) Torque
(d) Displacement
(e) None of the above
Q7. What does the airbag, used for safety of car driver, contain?
(a) Sodium bicarbonate
(b) Sodium azide
(c) Sodium nitrite
(d) Sodium peroxide
(e) None of the above
Q8. Why an object when thrown upwards reaches a certain height and then falls downward?
(a) Atmospheric pressure
(b) Gravitational force of the earth
(c) Mass of the object
(d) All of the above
(e) None of the above
Q9. Brass is an alloy of
(a) copper and iron
(b) zinc and iron
(c) copper and zinc
(d) iron and nickel
(e) None of the above
Q10. Sweating during exercise indicates operation of which one of the following processes in the human body?
(a) Enthalpy
(b) Phagocytosis
(c) Homeostasis
(d) Osmoregulation
(e) None of the above
Solutions
S1.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.
S2.Ans. (d)
Sol. A couple has the only effect of producing or preventing the turning effect of the body.
Application of Couple:
Steering wheel applied by the car driver, Opening and closing of a water tap, Winding the spring of an alarm clock, Unlocking the locker by using a key etc.
S3.Ans. (b)
Sol. The value of G is a constant like other constants and is independent of factors such as medium, temperature pressure etc. The value of gravitational constant of the earth is independent on the mass and radius of the earth.
S4.Ans. (a)
Sol. Milk is a mixture composed of water, along with fat and sugar. Chief among these protein is called caseins which make up about 80% of the proteins in milk.
S5.Ans. (d)
Sol. Colloids are a mixture in which one substance is divided into minute particles (called colloidal particles) and dispersed throughout a second substance. The substances are present as larger particles than those found in solution, but are too small to be seen with a microscope.
S6.Ans. (b)
Sol. Speed is not a vector quantity as it doesn’t have direction. It only provides magnitude.
S7.Ans. (b)
Sol. Sodium azide is used in airbag, used for safety of car driver. Under room temperature, sodium azide is a stable compound. However when heated by an impulse it disintegrates to produce sodium and nitrogen. It only takes about 50-100 grams sodium azide to produce enough nitrogen gas to fill a normal air bag for driver.
S8.Ans. (b)
Sol. An object when thrown upwards reaches a certain height and then falls downward due to pull by gravitational force of the earth. In absence of gravitational force of the earth object wouldn’t fall back.
S9.Ans. (c)
Sol. Brass is an alloy of copper and zinc. The proportions of zinc and copper can vary between different types of brass alloys having different mechanical and electrical properties.
S10.Ans. (b)
Sol. Homeostatic regulation includes sweating. It is the main process through which the body gets coolness.
General-Studies Quiz For FCI Phase I 202...
