CAPF (AC) 2014 (Paper-1) (Question 101-125)

Total Questions: 25

11. Which of the following ions present in low concentration in drinking water is essential for normal growth of teeth but harmful to teeth at high concentration?

Correct Answer: (c) Fluoride
Solution:Fluoride is commonly used in dentistry to strengthen enamel, which is the outer layer of the teeth. Fluoride helps to prevent cavities. Its presence in low concentration in drinking water is essential for normal growth of teeth but harmful to teeth at high concentration, as it may cause dental fluorosis. Thus, option (c) is the correct answer.

12. Which of the following are the duties and functions of Indian Coast Guard?

1. Preservation and protection of marine environment

2. Safety and protection of artificial islands

3. Assistance in anti smuggling operations

Select the correct answer using the code given below :

Correct Answer: (d) 1,2and 3
Solution:The Indian Coast Guard (ICG) is maritime law enforcement and search and rescue agency of India with jurisdiction over its territorial waters including its contiguous zone and exclusive economic zone. Thus, its main function is the preservation and protection of the marine environment.

It looks after the safety and protection of artificial islands, and assistance m anti-smuggling operations. Therefore, option (d) is the correct answer.

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

List-I (Explanation)List-II (Term)
A. Colour of an opaque object1. Fluorescence
B. Colour observed through a Coloured glass2. Reflection
C. Bending of the image of a rod partially dipped in water3. Transmission
D. Shining observed when one steps on an earthworm4. Refraction

 

Code:ABCD
(a)1342
(b)1432
(c)2431
(d)2341

 

Correct Answer: (d)
Solution:
List-I (Explanation)List-II (Term)
A. Colour of an opaque objectReflection
B. Colour observed through a Coloured glassRansmission
C. Bending of the image of a rod partially dipped in waterRefraction
D. Shining observed when one steps on an earthwormFluorescence

14. Which of the following islands are made of small coral atolls and reefs in the Arabian Sea?

Correct Answer: (d) Lakshadweep
Solution:The Lakshadweep Islands are all made up of coral reefs. Corals are polyp like formations of many small marine animals. Millions of dead corals form coral reefs. These are generally found in tropical seas and these secrete a chemical known as calcium carbonate. Thus, option (d) is the correct answer.

15. Six roads lead to a village. They are named as A, B, C, D, E, F. When there is storm, B is blocked. When there are floods, A, D and E will be affected. When road D is blocked, C also is blocked. At a time, when there are floods and a storm also blows, which road/roads can be used?

Correct Answer: (c) F
Solution:When there is storm, B is blocked and when there are floods, A, D and E will be affected and when D is blocked, C is also blocked.

So, only road F can be used at the time of flood and storm.

16. Which of the following lamps contains a poisonous gas and therefore should be disposed safely?

Correct Answer: (a) Compact fluorescent lamp
Solution:The disposal of CFLs is a major environmental concern because they contain mercury, a neurotoxin. High levels of mercury intake can damage the brain, the reproductive system, foetuses and cause behavioural problems. Thus, option (a) is the correct answer.

17. Which of the following statements is/are correct with regard to Jaitapur, which is situated in Rajapur Tehsil of Ratnagiri district in Maharashtra?

1. It was one of the important ports in ancient and early medieval times

2. It is a proposed nuclear power plant site being constructed with the collaboration of France

Select the correct answer using the code given below :

Correct Answer: (c) Both 1 and 2
Solution:Jaitapur was one of the important ports in ancient and early medieval times. It is a proposed nuclear power plant site being constructed with the collaboration of France. Thus, option (c) is the correct answer.

18. In a family, the age of father, mother, son and grandson are A, B, C and D respectively. Given that A – B = 3, B + C = 78, C + D = 33 and the average age of the family is 34 years, then B - C is :

Correct Answer: (d) 22
Solution:Average age of family = 34 years

Total age of family = 34 × 4 = 136 years

A - B = 3

B + C = 78

C + D = 33

B - C = ?

A + B = 136 - 33 = 103 ....... (1)

A - B = 3 ....... (2)

Adding equations (1) and (2),

2A = 106

A = 53 years.

From equation (2),

B = 50 years

∴ B + C = 78

∴ C = 78 - 50 = 28 years

∴ (B - C) = 50 - 28 = 22 years

19. Which of the following statements is/are correct?

1. 'Ship of Theseus' was adjudged as the best feature film in the 61" National Film Awards

2. 'Ship of Theseus' was produced and directed by Rakeysh Omprakash Mehra

Select the correct answer using the code given below :

Correct Answer: (a) 1 only
Solution:Anand Gandhi's powerful debut 'Ship of Theseus' was declared the best feature film at the 61st National Film Awards here. It has been hailed for its brilliant portrayal. of complex issues of identity, faith and death through the Theseus paradox.

20. Which meridian forms the boundary line between the Indian Ocean and the Pacific Ocean?

Correct Answer: (a) The meridian of Cape of Tasmania
Solution:The longitude 147°E which passes through Tasmania, an island as part of Victoria State in Australia, is the boundary line between the Indian Ocean and the Pacific Ocean. Thus, option (a) is the correct answer.