Kolkata Police Constable Prelims Mock Test - 3 - Kolkata Police Constable MCQ

Explanation:

• Assertion (A): The rupee is widely accepted as a medium of exchange in India.


• Reason (R): It is authorized by the government of the country.

• Assertion (A) is correct: The rupee is indeed widely accepted as a medium of exchange in India. It is the official currency of the country and is used for all transactions.


• Reason (R) is also correct: The rupee is authorized by the government of India as the legal tender for transactions. It is issued and regulated by the Reserve Bank of India, which is the central monetary authority in the country.


• R is the correct explanation of A: The reason why the rupee is widely accepted as a medium of exchange in India is because it is authorized and backed by the government. The government ensures its stability and acceptance in the economy.

Therefore, option A is the correct choice as both the assertion and reason are true, and the reason is the correct explanation of the assertion.

D is the correct option.The Rigveda is the largest of the four Vedas, and many of its verses appear in the other Vedas. ... Brahmin · Kshatriya · Vaishya · Shudra.The first mention of Varna Vaishya is found in the Purusha Suktam verse of the ancient Sanskrit Rig Veda.

Traditional products from Tripura, Matabari Pera Prasad and Rignai Pachara textiles, have recently earned Geographical Indication (GI) tags, bringing the state’s total to 4 GI protected products. Matabari Pera Prasad, a sweet from Tripureswari temple, is made from milk and sugar. Rignai Pachara textiles, traditional hand-woven attire, symbolize Tripura’s cultural heritage. These products’ GI recognition highlights their significance and authenticity, attracting global attention and marketing opportunities.

A budget constraint represents all the combinations of goods and services that a consumer may purchase given current prices within his or her given income. Consumer theory uses the concepts of a budget constraint and a preference map to analyze consumer choices.

The International Covenant on Economic, Social and Cultural Rights (ICESCR) is a multilateral treaty that recognizes and protects various human rights. It sets out the rights of individuals to economic, social, and cultural development.
Among the options provided, the right to accumulate wealth is not seen as a standard of human rights by the ICESCR.
Here is a breakdown of the options and their status as human rights recognized by the ICESCR:
A. Right to social security and insurance: This right is recognized by the ICESCR. It ensures that individuals have access to social security benefits and insurance coverage to protect them against various risks and ensure their well-being.
B. Right to health: This right is also recognized by the ICESCR. It includes the right to access healthcare services, facilities, and essential medicines without discrimination.
C. Right to accumulate wealth: This right is not recognized as a standard of human rights by the ICESCR. While individuals have the right to work, earn a living, and participate in economic activities, the ICESCR focuses more on ensuring a fair distribution of wealth and addressing poverty rather than emphasizing the accumulation of wealth.
D. Right to adequate standard of living: This right is recognized by the ICESCR. It encompasses various aspects such as access to food, clothing, housing, and other essentials necessary for a decent life.
In conclusion, the option C, the right to accumulate wealth, is not seen as a standard of human rights by the International Covenant on Economic, Social and Cultural Rights.

Bhakti is one of the recognised paths leading to Moksha or salvation. The notion of salvation could be easily summarized that Salvation in Hinduism is called Moksha and Moksha is attained when an enlightened human being is freed from the endless cycle of death and reincarnation and comes into a state of completeness

The Universal Declaration of Human Rights is a landmark document adopted by the UN that outlines fundamental human rights.

There are four main agents of erosion. Moving water, wind, gravity, and ice wear away or break up rocks, sediments, and soil from the land's surface. When these materials are deposited or dropped in new places, it is called deposition. Erosion and deposition work together.

The correct option is Option C. 
The origin of the Maratha Confederacy may be traced to the revival of the Jagir or Saranjam system by Rajaram. The bases of this system were laid during the time of Balaji Rao I.
 

Rulers of Vijayanagar
Deva Raya I reigned from 1406–1422 CE
Virupaksha Raya II reigned from 1465-1485
Vira Narasimha Raya reigned from 1505–1509
Krishnadevaraya reigned from 1509–1529
Tirumala Deva Raya reigned from 1565–1572 CE
Hence, the correct answer is option (A).

The groundbreaking discovery of India's first lithium deposits, estimated at 5.9 million tonnes, was made in Jammu and Kashmir in February. Subsequent modifications to mining rules in July allowed private miners to explore these critical minerals, and reports indicate that the region will auction its lithium reserves in the coming months.

The correct answer is Kurukshetra.

Void ratio (e): 

• Void ratio is usually defined as the ratio of the volume of voids to the total volume of soil solid.

Porosity (n): 

• Porosity is defined as the ratio of the volume of voids to the total volume of the soil.

The relationship between void ratio and porosity are as follows:

Concept:

Nuclear reactor:

• It is a device in which a nuclear reaction is initiated, maintained, and controlled.
• It works on the principle of controlled chain reaction and provides energy at a constant rate.

Explanation:

• Nuclear Fuel: It is a fissionable material to be used for the fission process to take place. Therefore option 1 is correct.
• Commonly used fuels in a nuclear reactor are U233, Enriched U235, Pu239 etc. 
• Generally, uranium oxide pellets are inserted end to end into long hollow metal tubes constituting the fuel rods.
• When slow neutrons interact with the fuel, the fission starts, and the energy is released. 

Additional Information

• The moderator's function is to slow down the fast-moving secondary neutrons produced during the fission.
  • The material of the moderator should be light and it should not absorb neutrons.
  • Usually, heavy water, graphite, deuterium, and paraffin, etc. can act as moderators.
• Controller: These are made with neutron-absorbing material such as cadmium, hafnium or boron, and are inserted or withdrawn from the core to control the rate of reaction, or to halt it. 
• Lubricant: Lubricant has shown that it is possible to produce materials capable of lubricating some reactor components.
  • In order to further the development of such lubricants, the U.K.A.E.A. and the nuclear manufacturing groups have co-operated in providing lubricant manufacturers.

• Statement-I is correct: The shift towards ritualistic practices and the corruption observed within Buddhist monasteries were significant factors in the decline of Buddhism in India. These developments marked a departure from the principles that initially defined Buddhism, leading to disillusionment among followers.
• Statement-II is correct: This deviation from the foundational teachings of simplicity and austerity, which were directly accessible and appealing to the common people, diluted Buddhism's appeal. The religion's increasing complexity and the perceived moral decline among its clergy made it less attractive to its base of support.
• Statement-II directly explains Statement-I by providing the underlying reason for the decline mentioned in Statement-I. The adoption of complex rituals and the loss of ethical standing among the Buddhist community undermined the religion's foundational appeal, directly contributing to its decline.

AP is:  a,a+d,a+2d,a+3d,a+4d
Middle term is a+2d=5
d=4
a+2d=5
a+2*4=5
a=5-8= -3
a+d= -3+4=1
a+3d= -3+3*4=-3+12=9
a+4d= -3+4*4= -3+16=13
So the terms are : -3,1,5,9,13

Given : Diameter (d) = 4.2 cm
∴ Circumference  

Total Cards: 52

Total Face cards: 12 (4 Jacks, 4 Queens, 4 Kings)

P(Choosing a Face card) =12/52= 3/13

A polynomial of degree 5 is of the form p(x) =, where a, b, c, d, e, and f are real numbers and a ≠ 0.

Thus, p(x) can have at most 6 terms and at least one term containing. 

Smallest prime number = 2 and smallest composite number = 4 
∴ HCF (2, 4) = 2

We have quadratic equation of the form
x² - (sum of zeros) x + product of zeros, so comparing this with the given equation we have sum of zeros = -5
So, α + β = -5

A non-leap year has 365 days

A year has 52 weeks. Hence there will be 52 Sundays for sure.

52 weeks = 52 x 7 = 364 days .

365– 364 = 1 day extra.

In a non-leap year there will be 52 Sundays and 1day will be left.

This 1 day can be Sunday, Monday, Tuesday, Wednesday, Thursday, friday, Saturday, Sunday.

Of these total 7 outcomes, the favourable outcomes are 1.

Hence the probability of getting 53 sundays = 1/7.

Let the polynomial be f(x).

f(x) = x²− (sum of zeros)x +  product of zeros

= x²−2x–15

Sum of zeros = 3/1
-b/a = 3/1
Product of zeros = 2/1
c/a = 2/1
This gives 
a = 1
b = -3
c = -2,
The required quadratic equation is
ax²+bx+c
So,  x²-3x+2

1. Atheist: Someone who lacks belief in the existence of gods or deities and typically rejects organized religion.
   Religion: A system of beliefs, practices, and rituals centered around the worship of one or more gods or a divine power.
2. Sceptic: A person inclined to doubt or question accepted opinions and beliefs, especially those in religion or superstition.
   Pious: Devoutly religious or reverent, typically exhibiting strong religious devotion or dedication.
3. Iconoclast: A person who attacks or criticizes cherished beliefs or institutions, especially those in religion.
   Idol: An image or representation of a god used as an object of worship, or a person or thing that is greatly admired, loved, or revered.
4. Apostate: Someone who renounces or abandons a religious or political belief or principle, often after previously holding it.
   State: A politically organized community living under a government, usually sovereign, occupying a definite territory.

Both are pairs of antonyms.
Hence, Option A is correct.

As Water of a River flows similarly water of Pool is Stagnant.

Clearly, the given series consists of prime numbers starting from 2. The prime number after 11 is 13.

Thus, the missing number is 13.