Kolkata Police SI Mock Test - 9 - Kolkata Police SI MCQ

The correct answer is 120 dB.

• The loud noises that continue for a prolonged period can cause High blood pressure, Eardrum damage, and Nervous breakdown.
• Noise is unwanted and undesirable sound or noise, an irritant, and a source of stress.
• The sound level meter is used for measuring the intensity of sound.
• The transport sector contributes the maximum noise.
• The roadway noise can be reduced by the use of noise barriers, limitation of vehicle speed, and alteration of roadway surface texture.
• Sound is measured in decibels.
• Noise pollution is considered to be caused by sounds louder than 120 decibels.
• The decibel scale is used for measuring the loudness of sound or noise.
• According to the research, noise pollution is the highest in a low-income neighbourhood.
• The level of sound during normal conversation is 60 dbA.
• The allowed noise level by World Health Organisation (WHO) in residential areas is 50 decibels.
• Noise pollution affects marine animal's behaviour.
• The main source of noise pollution is Heavy machinery and Transportation equipment.

The correct answer is Salinization.

• Salinization is an increase in the total dissolved solids (TDS) as the salt of the aquifer caused by natural or anthropogenic factors.
• Salinization is a global problem.
  • It tends to be concentrated in the world’s arid and semi-arid regions.
• Gypsum (calcium sulfate) or lime can be used to help leach salt from the soil.

Important Points

• Desertification is an environmental degradation that reduces the productivity of dryland ecosystems by reducing plant.
  • Overgrazing is the major cause of desertification worldwide.
  • Other factors that cause desertification are urbanization, climate change, overuse of groundwater, deforestation, natural disasters, and tillage practices in agriculture that make soils more vulnerable to wind.
• Carbonization is a process in which fuel is heated (900–1,200 °C) without air to leave solid porous carbon.
  • By this process, cole creates coke and sub byproducts.
• Oxygenation is a process where the addition of oxygen takes place to any chemical or physical system, including the human body.
  • By the process of oxygenation of the water, fish and seafood farmers can protect their stock against oxygen deficiencies during peak consumption and growth periods.

Additional Information

• The dissolved oxygen content of the water can be expressed as the absolute quantity of oxygen in one unit of water (mg/l, ppm) or as relative oxygen saturation (%).

Explanation:

• Embargo on imports from India: The Roman senate laid an embargo on the import of Muslin from India as it was considered a menace to the city's morals.


• Reasoning behind the embargo: Muslin was a luxurious fabric that was highly sought after by the Roman elite. However, the sheer and delicate nature of Muslin was believed to be provocative and immoral.


• Impact on the city: The Roman senate believed that the availability of Muslin in the city would lead to moral decadence and corrupt the values of the citizens.


• Alternative imports: In order to maintain the moral integrity of the city, the Roman senate restricted the import of Muslin and looked for alternative fabrics that were deemed more appropriate for the society.

In March 2024, UNESCO’s Executive Board added 18 new sites to the Global Geoparks network, bringing the total number of sites to 213 across 48 countries. The new sites are located in Belgium, the Netherlands, Brazil, China, Croatia, Denmark, Finland, France, Greece, Hungary, Poland, Portugal, and Spain. Global Geoparks are single geographical areas that are managed with a holistic concept of protection, education, and sustainable development.

Explanation:

• Rock Edicts of Ashoka: These are a series of inscriptions on large rocks or pillars by the Mauryan Emperor Ashoka during his reign in the 3rd century BC.


• Southern Kingdoms mentioned: Cholas, Pandyas, Satiyaputra, Keralaputra, and Ceylon are mentioned in the Rock Edicts of Ashoka.


• Identifying the correct Rock Edicts: To determine which two Rock Edicts mention these Southern kingdoms, we need to refer to historical records and inscriptions.


• Second and Thirteenth Rock Edicts: These two Rock Edicts of Ashoka mention the Southern kingdoms Cholas, Pandyas, Satiyaputra, Keralaputra, and Ceylon.


• Conclusion: Therefore, the correct answer is B: Second and Thirteenth Rock Edicts of Ashoka mention the Southern kingdoms Cholas, Pandyas, Satiyaputra, Keralaputra, and Ceylon.

When the quantity of acids in the raining water is more than the average, then such rain is called 'Acid rain'.

We are aware that normally rainwater has a pH of 5.6.  When the pH of the rainwater drops below 5.6, it is called acid rain.

Acid rain refers to the ways in which acid from the atmosphere is deposited on the earth’s surface. Oxides of nitrogen and sulphur which are acidic in nature can be blown by the wind along with solid particles in the atmosphere and finally settle down either on the ground as dry deposition or in water, fog and snow as wet deposition.

∴ The average pH value of the acid rain is 4 to 5 and hence the average value of 4.5.

The bad effects of acid rain

• When acid rain falls and flows as groundwater to reach rivers, lakes etc, it affects plants and animal life in the aquatic ecosystem
• Acid rain is harmful to agriculture, trees and plants as it dissolves and washes away nutrients needed for their growth
• It causes respiratory ailments in human beings and animal
• It may also cause corrosion in many buildings bridges, monuments, fencing etc
• It causes irritation in the eyes and skin of human beings
• This rain reduces the lustre of the metals too
• Acid rain damages buildings and other structures made of stone or metal
• The Taj Mahal in India has been affected by acid rain

International Day of Human Space Flight is celebrated every year on 12 April. This day is celebrated in honor of Yuri Gagarin, the first man to go into space.  The UN General Assembly had announced the celebration of this day in the year 2011. On April 12, 1961, Yuri Gagarin of the Soviet Union became the first man to travel around the Earth in space.

The village, Rummindei was exempted from bali (a tax) and bhaga (royal share of the production) was reduced to one-eighth.

The correct answer is option (C). Abolition to Sati and Legislation of widow marriage were disliked by hindus and made them dislike the British.
Due to fierce campaign and lobbying of Raja Rammohan Roy and others,Sati practice was formally banned in all the lands under Bengal Presidency by Lord William Bentinck on 4 December 1829. By this regulation, the people who abetted sati were declared guilty of “culpable homicide.”
The Hindu Widows' Remarriage Act, 1856, also Act XV, 1856, enacted on 26 July 1856, legalised the remarriage of Hindu widows in all jurisdictions of India under East India Company rule. It was drafted by Lord Dalhousie and passed by Lord Dalhousie before the Indian Rebellion of 1857.

The National Human Right Commission is an independent commission, set up by the law in the year 1993:
Explanation:
The National Human Rights Commission (NHRC) is an autonomous and independent body established in India to protect and promote human rights. It was set up under the Protection of Human Rights Act in the year 1993.
Key Points:
- The NHRC is mandated to inquire into complaints of human rights violations, intervene in cases pending before the courts, and promote human rights awareness.
- The commission is responsible for the protection and promotion of human rights, including civil, political, economic, social, and cultural rights.
- It has the power to visit jails, detention centers, and any other place where a person is detained under law.
- The NHRC has the authority to recommend payment of compensation to the victims of human rights violations.
- It is composed of a chairperson and several members, who are appointed by the President of India.
- The NHRC plays a crucial role in ensuring the accountability of the state and its agencies in upholding human rights.
Conclusion:
The National Human Rights Commission was established in 1993 under the Protection of Human Rights Act to protect and promote human rights in India.

A cottage industry is a small-scale, decentralized manufacturing business often operated out of a home rather than a purpose-built facility. Cottage industries are defined by the amount of investment required to start, as well as the number of people employed.

Swaran Jayanti Shahari Rozgar Yojna. The Urban Self-Employment Program and the Urban Wage Employment Program are two special schemes of the SJSRY initiated in December 1997, which replaced various programs operated earlier for urban poverty alleviation

Answer:

The Fundamental Right that prohibits traffic in human beings is the Right against exploitation.

Explanation:

• Right against exploitation: This fundamental right ensures that no person shall be subjected to human trafficking, forced labor, or other forms of exploitation.


• Right to freedom: Although the right to freedom also protects individuals from being subjected to slavery or forced labor, it does not specifically address the issue of trafficking in human beings.


• Right to equality: The right to equality ensures equal treatment and protection for all individuals, but it does not specifically address the prohibition of traffic in human beings.


• Right to freedom of religion: This right guarantees individuals the freedom to practice any religion of their choice but does not directly address the issue of human trafficking.

Therefore, the correct answer is A: Right against exploitation, as it specifically addresses and prohibits traffic in human beings.

Narendra Modi did become Prime Minister on May 26, 2014, and his government did focus on the "Sabka Saath, Sabka Vikas" development plan.

Features accepted by all the Indian leaders much before they sat down to make the Constitution:
- Universal adult franchise:
- All the Indian leaders unanimously accepted the idea of universal adult franchise, which means every adult citizen of the country, irrespective of their caste, religion, gender, or social status, has the right to vote in elections.
- This feature was seen as an essential aspect of democracy and was aimed at ensuring equal political rights for all citizens.
- Right to freedom:
- The concept of fundamental rights, including the right to freedom, was widely accepted by Indian leaders even before the Constitution was drafted.
- The right to freedom encompasses various freedoms such as freedom of speech and expression, freedom of assembly, freedom of religion, and freedom of movement, among others.
- Indian leaders believed in the importance of safeguarding these fundamental rights to protect individual liberties and promote a democratic society.
- Protection of the rights of minorities:
- Indian leaders recognized the significance of protecting the rights of minorities in a diverse country like India, where people from different religions, languages, and cultures coexist.
- They understood the need to ensure equal rights and opportunities for all individuals, irrespective of their minority status.
- This commitment to protect the rights of minorities was reflected in the Constitution through provisions such as the right to cultural and educational rights for minorities.
Conclusion:
All the Indian leaders unanimously accepted the features of universal adult franchise, right to freedom, and protection of the rights of minorities much before they sat down to make the Constitution. These features were seen as essential principles to establish a democratic and inclusive society in India.

1) GRASS – FEARLESS (Cannot be formed because G is missing)

2) RESEAL – FEARLESS (Can be formed)

3) LESSER – FEARLESS (Can be formed)

4) ERASE – FEARLESS (Can be formed)

Hence, the correct answer is “GRASS”.

1) 8, 4, 3, 7, 1, 5, 2, 6

2) 5, 2, 7, 3, 4, 1, 8, 6

3) 3, 1, 6, 8, 4, 5, 2, 7

4) 1, 4, 8, 3, 2, 5, 7, 6

'POLITICS' is a meaningful English word.

Hence, '1, 4, 8, 3, 2, 5, 7, 6' is the correct answer.

Hence, the above image is the correct answer.

Persons: A, B, C, D, E and F

1) E is sitting immediate left to the B.

2) A is sitting fourth right to the B.

3) F is sitting between A and D.

4) Final Sitting arrangement.

Hence, “C” is sitting immediate left to the D.

The figure is given below:-

Sunny faces east direction then move 45° clockwise direction and the move 135° anticlockwise direction. Now Sunny faces north direction.

Hence, "option 2" is the correct answer.

1st term = 5
2nd term = 5 + (4*1) = 5 + 4 = 9
3rd term = 9 + (4*2) = 9 + 8 = 17
4th term = 17 + (4*3) = 17 + 12 = 29
5th term = 29 + (4*4) = 29 + 16 = 45

Thus, the missing number is 6th term = 45 + (4*5) = 45 + 20 = 65

The sequence is a combination of two series:

I. 19, 38, 114, (____)
II. 2, 3, 4

Considering Series I:
1st term = 19
2nd term = 19*2 = 38
3rd term = 38*3 = 114
Thus, the missing number is 4th term = 114 * 4 = 456

As, 68 = (4)³ + 4

    130 = (5)³ + 5

and 350 = (7)³ + 7

Therefore, ? = (6)³ + 6 = 222

Second is the process of gradual disappearances of the first.

Let AB be the kite and AC be the level ground
So that BC - AC.
At that point, ∠BAC = 60°and BC = 75m. Let AB = x meters.
Presently AB/BC = coses60° = 2/ √3
=> x/75 = 2/√3 => x = 150/√3 = 150 * √3/3 = 50 √3m.
∴ Length of the string = 50 √3m.

The number of students who play both the games = (30 + 50 + 40)% – 100% = 20%
Hence, Option D is correct.

Hence, Option C is correct.

7/8 x -4/21 = -1/6

Option B is the correct answer.

8 × 39 + 13 × 43 = 871
Since the 8th number came twice, it is added two times.
So the answer = 871 – 20 × 41 = 51
Hence, Option A is correct.