CAPF (AC) 2023 (Paper-1) (Questions 51-100)

Total Questions: 50

21. A wire of resistance R is cut into equal parts. These parts are then connected in parallel. If the equivalent resistance of this combination is R', then the ratio is: (R')/R is:

(a) 1/16
(b) 1/4
(c) 4
(d) 16

Correct Answer: (a) 1/16

Solution:When resistance wire cut into 4 pieces. Then,

22. In experiment \# 1 , a bar magnet is moved towards a conducting wire loop axially, with the magnet's north pole facing the loop. In experiment \# 2 , the same process as in experiment #1 is repeated except that the south pole of the magnet faces the loop. Which one of the following statements is true in this context?

(a) The direction of current in the loop will be of opposite nature in both the experiments.
(b) The direction of current in the loop will be the same in both the experiments.
(c) No current will flow in either of the two experiments.
(d) More current will flow in the loop in experiment \# 1 . Translate

Correct Answer: (a) The direction of current in the loop will be of opposite nature in both the experiments.

Solution:The direction of current in the loop will be of opposite nature in the both experiments.

23. Which one of the following correctly explains the change in season on Earth?

(a) Tilt of the Earth's axis
(b) Rotation of the Earth on its own axis
(c) Revolution of the Moon around the Sun
(d) Interaction of the Earth with other planets

Correct Answer: (a) Tilt of the Earth's axis

Solution:Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, its winter in the Northern Hemisphere.

24. Consider the following statements:

1. The Great Northern Plains are formed by basins of three distinct river systems and the Brahmaputra. the Indus, the Ganga

2. They are one of the most densely populated areas on Earth.

3. Between the Yamuna at Delhi and the Bay of Bengal, nearly 1600 km away, there is a drop of only 200 metres in elevation.

Which of the statements given above are correct?

(a) 1, 2 and 3
(b) 2 and 3 only
(c) 1 and 2 only
(d) 1 and 3 only

Correct Answer: (a) 1, 2 and 3

Solution:The northern plain has been formed by the interplay of the three major river systems, namely the Indus, the Ganga and the Brahmaputra along with their tributaries. This plain is formed of alluvial soil. The plain being about 2400 Km long and 240 to 320 Km broad, is a densely populated physiographic division. 'Between the Yamuna at Delhi and Bay of Bengal, nearly, 1600km away, there is a drop of only 200 metres in elevation'.

25. Consider the following statements:

1. Many of the world's largest mountain chains exist beneath the sea.

2. Some mountain chains are revealed as island arcs.

3. The mid-oceanic ridges from the longest mountain chains.

4. The mid-Atlantic ridge rises thirty-three meters above the floor of the Atlantic.

Which of the statements given above are correct?

(a) 1 and 2 only
(b) 3 and 4 only
(c) 1, 2 and 4 only
(d) 1, 2 and 3 only

Correct Answer: (d) 1, 2 and 3 only

Solution:Mountain ranges that are mostly or fully underwater, and specifically beneath the surface of an ocean, are known as undersea mountain ranges. Many of the mountain ranges found beneath the sea. Island arc systems are formed when oceanic lithosphere is subducted beneath oceanic or continental lithosphere.

They are consequently typical of the margins of shrinking oceans such as the Pacific, where the majority of island arcs are located. The longest mountain range on Earth is called the mid-ocean ridge. Spanning 40,389 miles around the globe, it's truly a global landmark. About 90 percent of the mid-ocean ridge system is under the ocean.

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

List-I (Temprate grossland)	List-II (Region)
A. Prairies	1. Eurasia
B. Steppes	2. South Africa
C. Pampas	3. North America
D. Veldt	4. South America

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

Correct Answer: (c)

Solution:

Temperate Grassland	Region
Prairies	North America
Steppes	Eurasia
Pampas	South America
Veldt	South Africa

27. Consider the following statements about millets:

1. Millets are often referred to as climate-resilient crops because they can grow on arid lands with minimal inputs and maintenance.

2. Millets are a good source of minerals, dietary fibres, antioxidants and protein.

3. Millets, including sorghum, account for less than 3% of the global grains trade.

Which of the statements given above are correct?

(a) 1 and 2 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3

Correct Answer: (d) 1, 2 and 3

Solution:They are also known as coarse grains and can be grown on less fertile and sandy soils. It is a hardy crop that needs low rainfall and high to moderate temperature and adequate rainfall. Jowar, bajra and ragi are grown in India. Other countries are Nigeria, China and Niger. They significantly contribute to human and animal diets owing to their high levels of energy, calcium, iron, zinc, lipids, and high-quality proteins.

In addition, they are also rich sources of dietary fibres and micronutrients. Millets, including sorghum, account for less than 3% of the global grains trade. With the need to improve the resilience of global trade and its ability to respond to sudden changes in the food grain market, millets are a valuable option to increase output diversity and mitigate risks related to production shocks.

28. For how many pairs of vowels is the change of occurrence of any one of the two more than 34% in the book?

The next three items are based on a survey on occurrence of vowels in a certain book irrespective of whether they are in upper or lower case.

Vowel	A	E	I	O	U
Percentage	20	45	15	8	12

(a) 4
(b) 5
(c) 6
(d) 7

Correct Answer: (b) 5

Solution:The probability of 'E' is more than 34%.

The pairs made with the vowel 'E' are -

ΑΕ, ΕΙ, ΕΟ, EU

There are only 4 pairs in which only one of the two has 34% chance of occurrence.

29. Among the three vowels which occur minimum number of times, what is the percentage of occurrence of the letter that occurs the maximum number of times among them?

The next three items are based on a survey on occurrence of vowels in a certain book irrespective of whether they are in upper or lower case.

Vowel	A	E	I	O	U
Percentage	20	45	15	8	12

(a) 42 6/7 %
(b) 41 5/7 %
(c) 40 4/7 %
(d) 39 2/7 %

Correct Answer: (a) 42 6/7 %

Solution:The vowels occur minimum number of times = I, O, U

The vowel occurs maximum number of times among them is ⇒ I

The probability of 'I' (in percentage) = 15/35 × 100

= 300/7

= 42 6/7 %

30. If "O" and "U", irrespective of upper or lower case, occur exactly 5040 times, then how many times does the letter "E" occur in the book in the upper or the lower case?

The next three items are based on a survey on occurrence of vowels in a certain book irrespective of whether they are in upper or lower case.

Vowel	A	E	I	O	U
Percentage	20	45	15	8	12

(a) 11840
(b) 11600
(c) 11430
(d) 11340

Correct Answer: (d) 11340

Solution:'O' and 'U' occur in book = 5040 times

Vowel 'E' occurs in book = 5040/20 ×45

⇒ 11340 times

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CAPF (AC) 2023 (Paper-1) (Questions 51-100)

21. A wire of resistance R is cut into equal parts. These parts are then connected in parallel. If the equivalent resistance of this combination is R', then the ratio is: (R')/R is:

23. Which one of the following correctly explains the change in season on Earth?

24. Consider the following statements:

25. Consider the following statements:

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

27. Consider the following statements about millets:

28. For how many pairs of vowels is the change of occurrence of any one of the two more than 34% in the book?

29. Among the three vowels which occur minimum number of times, what is the percentage of occurrence of the letter that occurs the maximum number of times among them?

30. If "O" and "U", irrespective of upper or lower case, occur exactly 5040 times, then how many times does the letter "E" occur in the book in the upper or the lower case?

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