NDA/NA SOLVED PAPER 2015-I (GENERAL KNOWLEDGE)

Total Questions: 100

11. The displacement-time graph of a particle acted upon by a constant force is

Correct Answer: (c) a parabola
Solution:Constant force means constant acceleration. Now s = ut + 1/2 at² It represents a parabola.

12. Which one of the following is not a result of surface tension?

Correct Answer: (d) Flow of a liquid
Solution:Surface tension is the elastic tendency of liquids which makes them acquire the least surface area possible. (a) (b) and (c) are due to surface tension.

13. Match List I with List II and select the correct answer using the code given below the Lists:

List-I (Compound)List-II (Nature)
A. Sodium hydroxide1. Strong acid
B. Calcium oxide2. Alkali
C. Acetic acid3. Weak acid
D. Hydrochloric acid4. Base
Code:ABCD
(a)2341
(b)2431
(c)1432
(d)1342
Correct Answer: (b)
Solution:Sodium hydroxide is an alkali hydroxide. Calcium oxide is a base. Acetic acid is a weak acid and hydrochloric acid is a strong acid.

14. Which one of the following statements is not correct?

Correct Answer: (c) Ratnagiri Bauxite mining area is located in Karnataka
Solution:Ratnagiri Bauxite mines are located in Maharashtra.

15. Match List I with List II and select the correct answer using the code given below the Lists:

List-I (Paper industry centre)List-II (State)
A. Kamptee1. Karnataka
B. Rajahmundry2. Maharashtra
C. Shahdol3. Andhra Pradesh
D. Belagola4. Madhya Pradesh
Code:ABCD
(a)1432
(b)2341
(c)1342
(d)2431
Correct Answer: (b)
Solution:Kamptee is a city and a municipal council in Nagpur district in the Indian state of Maharashtra. Rajahmundry is one of the major cities in the Indian state of Andhra Pradesh. Shahdol is a city in Shahdol district in the Indian state of Madhya Pradesh. Belagola is a village in the southern state of Karnataka, India.

16. The newly formed state of Telengana is surrounded by

Correct Answer: (a) 5 States
Solution:Telangana is bordered by the states of Maharashtra, Chhattisgarh to the north, Karnataka to the west, and Andhra Pradesh to the south, east and north east.

17. Energy is required for maintenance of life. It is obtained by a process called

Correct Answer: (a) Metabolism
Solution:Metabolism refers to all the physical and chemical processes in the body that convert or use energy, such as breathing, circulating blood, controlling body temperature, food digestion etc.

18. All life forms contain "molecules of life". These are

Correct Answer: (d) All of these
Solution:Metabolism refers to all the physical and chemical processes in the body that convert or use energy, such as breathing, circulating blood, controlling body temperature, food digestion etc.

19. If a charged particle (+q) is projected with certain velocity parallel to the magnetic field, then it will

Correct Answer: (c) continue its motion without any change
Solution:If the charged particle is moving along the magnetic field - parallel or antiparallel to the magnetic field-then there would be no force on it as F = qv B sin θ

20. Optical fibres, though bent in any manner, allows light to pass through. What is the inference that one can draw from it?

Correct Answer: (d) Light can travel through the fibres due to multiple total internal reflections
Solution:Once the light enters the end of the tube or fibre, it experiences total internal reflection because of the large angle of incidence.