CAPF (AC) 2016 (Paper-1) (Question 1-50)

Total Questions: 50

1. Which one of the following figures correctly represents the relations between Jupiter, Mars and Planets?

Correct Answer: (a)

2. Consider the following Statements and Conclusions :

Statements:

Mohan is a good sportsman.

Sportsmen are healthy.

Conclusions:

I. All healthy persons are sportsmen.

II. Mohan is healthy.

Which one of the following is correct?

(a) Only Conclusion I follows
(b) Only Conclusion II follows
(c) Both Conclusion I and Conclusion II follow
(d) Neither Conclusion I nor Conclusion II follows

Correct Answer: (b) Only Conclusion II follows

Solution:All healthy persons are sportsmen: This statement only talks about sportsmen. It does not discuss the health of people in general. Therefore, Conclusion I do not follow. Mohan is healthy: This statement is true. As sportsmen are healthy and Mohan is a good sportsman. Therefore, Conclusion II is correct.

3. Which one of the following layers of atmosphere has high concentration of ions?

(a) Stratosphere
(b) Exosphere
(c) Thermosphere
(d) Troposphere

Correct Answer: (c) Thermosphere

Solution:In the earth's atmosphere, the thermosphere is the layer that has the highest concentration of ions and free electrons. The main components present in the layer are atomic oxygen It can reflect radio waves. This layer is present between the mesosphere and exosphere. It extends from about 90 km (56 miles) to between 500 and 1,000 km (311 to 621 miles) above our planet. This layer is hot since it absorbs the sun's radiation. Therefore, option (c) is correct.

4. Which one of the following cities has greater annual range of temperature?

(a) Kuala Lumpur
(b) New Delhi
(c) Shanghai
(d) Ulaanbaatar

Correct Answer: (a) Kuala Lumpur

Solution:The annual range of temperature is defined as the difference between the hottest and the coldest months by taking monthly mean temperatures in each case. Ulaanbaatar is the capital and most populous city of Mongolia.It has a greater annual range of temperature. In the city, the temperature goes upto -40°C on winters nights and +40°C in the Gobi Desert and +33°C. In most of the country, the average temperature is below zero from November to March. Therefore, option (d) is correct.

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

List-I (Climate type in letter code)	List-II (Major area)
A. Aw	1. Central California
B. Af	2. Indian Sub-Continent
C. Cs	3. North and South of Amazon Forests
D. Am	4. Western Equatorial Africa

Code:	A	B	C	D
(a)	3	1	4	2
(b)	2	4	4	1
(c)	3	4	1	2
(d)	2	1	4	3

Correct Answer: (c)

Solution:Koeppen's classification of climate is the most commonly used classification of climate. The classification system recognizes five major climatic types and each type is designated by a capital letter- A, B, C, D, E, and H. The seasons of dryness are indicated by the small letters: f, m, w, and s (f-no dry season; m

Monsoon climate; w- Winter dry season and s - Summer dry season. The small letters a, b, c, and d refer to the degree of severity of temperature.

Aw stands for Tropical wet climate. The north and south Amazon forest lies in the tropical region.

Af stands for Tropical wet and dry type of climate. Western Equatorial Africa has Wet Equatorial Climate.

Cs stands for Central Californian climate type. The Central Valley has a hot Mediterranean climate in the north; the southerly parts of the region are dry and categorized as desert.
Am stands for Indian subcontinent, which has tropical monsoonal type climate with short rainy season.

6. Ramsar Convention, to which India is a signatory, is related to conservation and wise use of:

(a) wetlands
(b) genetic resources
(c) mines
(d) forest lands

Correct Answer: (a) wetlands

Solution:The Ramsar Convention on Wetlands of International Importance Especially as Waterfowl Habitat is an international treaty for the conservation and sustainable use of wetlands. It is also known as the Convention on Wetlands.

It is named after the city of Ramsar in Iran, where the convention was signed in 1971.It is an intergovernmental treatythat was organised by Iran's Game and Fish Department at the Caspian seaside resort of Ramsar. There are over 2,400 Ramsar Sites around the world covering over 2.5 million square kilometres. Therefore, option A is correct.

7. Which one of the following rivers flows between Satpura and Vindhya ranges?

(a) Tapi
(b) Sabarmati
(c) Narmada
(d) Mahi

Correct Answer: (c) Narmada

Solution:One of the major rivers that flow in peninsular India is Narmada. It is also known as Reva.It flows from east to west along with the Tapti River and the Mahi River. In India, it is one of the rivers that stream in a rift valley, flowing west between the Satpurain Amarkantak and the depressions of the Vindhya ranges. It is the fifth-largest river in the country. Therefore, option (c) is correct.

8. Which one of the following is the correct taxonomic hierarchy?

(a) Kingdom-phylum - order - genus - family - class - species
(b) Kingdom - order - class - phylum - family - genus species
(c) Kingdom - class - order - phylum - family - species genus
(d) Kingdom - phylum - class - order - family - genus species

Correct Answer: (d) Kingdom - phylum - class - order - family - genus species

Solution:The animal is classified into seven major levels namely kingdom. In the 1700s, Swedish botanist Carolus (Carl) Linnaeus developed this system of animal kingdom classification. According to the taxonomic system, these levels are in the given hierarchy, from lowest to highest: species, genus, family, order, class, phylum, and kingdom.

Thus, species are grouped within genera, genera are grouped within families, families are grouped within orders, and so on. Therefore, option (d) is correct.

9. The subunits of DNA are known as:

(a) Nucleotide
(b) Nucleosome
(c) Nucleoside
(d) Polypeptide

Correct Answer: (a) Nucleotide

Solution:The subunits of DNA are nucleotides. Adenine, cytosine, guanine and thymine are the four nucleotides. Nucleotides are organic molecules that consist of three components, a phosphate group, deoxyribose sugar and a nitrogen-containing base.

There are four nucleotides, adenine (A), thymine (T), cytosine (C), guanine (G). They are the basic building block of nucleic acids. Some of the common examples of nucleotides with only one phosphate group are adenosine monophosphate (AMP), guanosine monophosphate (GMP) and cytidine monophosphate (CMP). Therefore, option (a) is correct.

10. The process of using microbes to treat areas of land or sea that have been contaminated by pesticides, oil or solvents is known as:

(a) Eutrophication
(b) Nitrification
(c) Ammonification
(d) Bioremediation

Correct Answer: (d) Bioremediation

Solution:The process of using microbes to treat areas of land or sea that have been contaminated by pesticides, oil or solvents is known as bioremediation. This process can be accelerated by the interference of human beings.

It is a branch of biotechnology that employs the use of living organisms, such as microbes and bacteria, in the removal of contaminants, pollutants, and toxins from soil, water, and other environments. The two major approaches to enhance bioremediation are bio stimulation and bio augmentation. Therefore, option (d) is correct.

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