NDA/NA SOLVED PAPER 2016-I (GENERAL KNOWLEDGE)

Total Questions: 100

11. Arrange the following centres of AIIMS from East to West:

1. Rishikesh
2. New Delhi
3. Patna
4. Bhubaneswar

Select the correct answer using the code given below:

Correct Answer: (a) 4-3-1-2
Solution:Bhubaneshwar > Patna > Rishikesh > New Delhi.

12. Suppose the force of gravitation between two bodies of equal masses is F. If each mass is doubled keeping the distance of separation between them unchanged, the force would become

Correct Answer: (c) 4F
Solution:According to the universal law of gravitation, everybody in the universe attract other body with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. Therefore mass is doubled then the force acting between them F, will become 4F.

13. A body has a free fall from a height of 20 m. After falling through a distance of 5 m, the body would

Correct Answer: (b) lose one-fourth of its potential energy
Solution:According to law of conservation of energy total energy remains conserved.
P.E. =mgh = 20 mg
Loss in potential energy is observed, as
(P.E.)¹ =mgh = 5mg
(P.E)¹/(P.E) = 5mg/20mg = 1/4
(Ρ.Ε.)¹ = 1/4 Ρ.Ε

14. Soap is sodium or potassium salt of

Correct Answer: (d) All of the above
Solution:Soaps are sodium or potassium salts of some long chain carboxylic acids, e.g. Stearic acid, Oleic acid and Palmitic acid.

15. Mass of a particular amount of substance

1. is the amount of matter present in it.
2. does not vary from place to place.
3. changes with change in gravitational force.

Select the correct answer using the code given below:

Correct Answer: (b) 1 and 2 only
Solution:Mass of a particular amount of substance depends on the amount of matter present in it and it does not vary from place to place.

16. Which of the following substances are harmful for health if present in food items?

1. Pesticide residues
2. Lead
3. Metanil yellow
4. Mercury

Select the correct answer using the code given below:

Correct Answer: (d) 1, 2, 3 and 4
Solution:Pesticides are chemicals used in agriculture to protect crops against insects, fungi, weeds and other pests and potentially toxic to human. Lead poisoning is a type of metal poisoning caused by lead in the body. The brain is the most sensitive to lead. Metanil yellow is a principal non-permitted food colour used extensively in India. The effect of long-term consumption of metanil yellow on the developing and adult brain causes neurotoxicity.

17. In India, glacial terraces known as 'Karewas' are found in

Correct Answer: (b) Jhelum Valley
Solution:Karewas are lacustrine deposits (deposits in lake) in the Valley of Kashmir and in Bhadarwah Valley of the Jammu Division also known as Jhelum valley.

18. Structurally, the Meghalaya region is a part of

Correct Answer: (b) Deccan Plateau
Solution:The hilly Meghalaya plateau lies in the south of the Brahmaputra valley. It, in fact, covers the entire Meghalaya state. The Meghalaya plateau is a part of the Deccan plateau and it is formed of hard ancient rocks.

19. Two bodies A and B are moving with equal velocities. The mass of B is double that of A. In this context, which one of the following statements is correct?

Correct Answer: (a) Momentum of B will be double that of A.
Solution:

20. During solar eclipse

Correct Answer: (b) the moon comes in between the sun and the earth
Solution:Solar eclipse happens when the moon moves in front of the Sun as seen from a location on Earth.