Bihar Police Constable Mock Test - 3 - Bihar Police MCQ

The World Soil Day was formally established on December 5, 2014, by the UN General Assembly, recognizing the late King of Thailand's commitment to sustainable soil management. The theme for 2023 is “Soil and Water, a Source of Life.”

Called the cradle of banking industry, Dakshina Kannada and Udupi districts (erstwhile undivided Dakshina Kannada) now feel that their nurtured babies are being snatched away with the Centre's latest proposal to merge three public sector banks from the region.

Sustainable development is defined as development that meets the needs of the present without compromising the ability of future generations to meet their own needs. This concept emphasizes the importance of balancing economic, social, and environmental considerations to ensure that development is sustainable and does not jeopardize the well-being of future generations.

Genetics is the branch of science which deals with the study of:
- Heredity: Genetics focuses on the study of how traits are passed down from one generation to another. It explores the principles of inheritance and the transmission of genetic information through genes.
- Variation: Genetics also examines the variations that occur within a species, including the factors that contribute to genetic diversity. It explores the mechanisms of genetic mutations and how they can lead to variations in traits.
- Genes and Chromosomes: Genetics delves into the structure and function of genes, which are segments of DNA that contain the instructions for building and maintaining an organism. It also studies chromosomes, which are structures within cells that carry genes.
- Genetic Disorders: Genetics investigates the causes and mechanisms of genetic disorders, such as inherited diseases and conditions that can be passed down from parents to their offspring. It aims to understand the underlying genetic factors and develop strategies for diagnosis, treatment, and prevention.
- Genetic Engineering: Genetics explores the field of genetic engineering, which involves manipulating and modifying the genetic material of organisms. It investigates techniques such as gene editing, gene therapy, and genetic modification, with the aim of improving human health, agriculture, and other areas.
- Evolution: Genetics plays a crucial role in the study of evolution, as it helps explain how populations change over time and how new species arise. It provides insights into the mechanisms of natural selection, genetic drift, and other factors that drive evolutionary processes.
Overall, genetics is a broad field that encompasses the study of heredity, variation, genes, chromosomes, genetic disorders, genetic engineering, and evolution. It provides valuable insights into the fundamental principles of life and has significant implications for various fields, including medicine, agriculture, and conservation.

The least compressible state of matter is solid form. 

Solids have much more connected bonds or forces between their own atoms. Since their atoms are more tightly packed together, closer to one another, and are stronger bonds than liquids and gases, then they require more energy (more compression) to change the structure of their atoms. 

Utkal Diwas, also known as Odisha Day, commemorates the formation of Odisha on April 1, 1936. It signifies the state’s cultural and historical significance, marking the end of a struggle for a separate identity from British colonial rule. Celebrated annually, it showcases Odisha’s rich heritage through festivities, including decorations and cultural displays. The state flag’s colors symbolize Odia pride and unity, highlighting the event’s importance in preserving the region’s traditions and identity.

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.

A map legend or key is a visual explanation of the symbols used on the map. It typically includes a sample of each symbol (point, line, or area), and a short description of what the symbol means.

Various symbols are represented on a map to show the human and physical features and they are classified as Legend.

Like for representing the river , mountains and lakes i.e physical features on a topographic map the cartographers used small size symbols with specific colors to describe the exact figure which is being represented on the map.

Similarly, for the case of human features, the map depicts either a cross for church or a dotted line for pathway or some sort of sign for that object. Use of letter symbols are also done in order to represent the natural vegetation like reserved forest R or protected forest P, etc.

यहाँ मीठा केले की विशेषता है.

The past two decades of globalisation has seen rapid movements in goods, services and investments between countries.

Stars appear to move from East to west because 

the earth rotates from west to east.

Light waves are electromagnetic waves:

Therefore, the correct answer is A: Electromagnetic waves.

Alcohol = 40% of 120 = 48

Hence, Option C is correct.

Collateral refers to an asset owned by the borrower, such as land, building, vehicle, livestock, or deposits with banks, that is offered as security to the lender until the loan is repaid. In the event of loan default, the lender has the right to sell the collateral to recover the outstanding amount. Collateral provides a level of assurance to the lender and reduces the risk associated with lending, making it a common practice in credit agreements.

Neem oil can be used as pesticide to control the proliferation of some species of insects and mites and also has applications in pharmaceutical industry as neem oil has various medicinal properties.

King Charles III is the monarch depicted on the new UK banknotes, which will co-circulate with those featuring Queen Elizabeth II's portrait starting from June 5, 2024.

Infant Mortality Rate - The ratio of deaths in an area to the population of that area; expressed per 1000 per year.

An indifference curve is a graph showing combination of two goods that give the consumer equal satisfaction and utility. Each point on an indifference curve indicates that a consumer is indifferent between the two and all points give him the same utility.

Distance=600 km

Speed=100 km/hr

Time =100/600​=6hr

Number of stops in 600 km=(600/75​)−1 = 7

Time of stopping after every 75 km = 3  min

Total time of stopping = 7×3 = 21min

Total time to cover 600 km is 6 hr 21 min.

दिए गए विकल्पों में से विकल्प 3 "सामने जो बड़ा सा मकान है, वह मेरा है।" वाक्य में ‘निश्चयवाचक सर्वनाम’ का प्रयोग हुआ है। अन्य विकल्प सही नहीं है ।

Key Points

Confusion Points

Additional Information

The International Day of Older Persons is celebrated on October 1st every year. It is a day to recognize the contributions of older persons and to examine issues that affect their lives. The theme for the International Day of Older Persons in 2023 is "Resilience of Older Persons in a Changing World." This theme highlights the resilience of older persons in the face of challenges such as climate change, pandemics, and conflict.

Cotton is a natural product obtained from agriculture which comes under the primary sector. From the cotton, yarn is spun, and textiles are made whose end product is cloth. And this processing of cotton comes under the secondary sector. The cloth is not produced by nature but has to be made, and therefore some process of manufacturing is essential.

Since their production volume is small and cannot meet demand for large quantities their market is very restricted. Now with the process of liberalization and globalization they are facing competition from local industries as well as foreign competitors who sell better quality products at lower prices.

25% of A + 50% of B = 90% of B
25% of A = 40% of B

62.50% of A = B
Hence, Option D is correct.

The following factors have stimulated the globalisation process.

1.Improvement in transportation: In the last fifty years, there have been a lot of improvements in transportation technology. This has made faster delivery of goods across long distances possible, at lower costs.
2.Development in information and communication technology: Technology in the areas of telecommunication and computers has been advancing rapidly.
3.Telecommunication: Telecommunication facilities like telephone, telegraph, mobiles, fax are used to connect people in the world. This has been made possible due to satellite communication devices.
4.Internet: Internet also allows us to send instant electronic mail (e-mail) and talk (voice mail) across the world at negligible cost. Even the payment of money from one bank to another can be made through e-banking.

Wind Speed Requirements for Wind-Electric Generators:
To work properly, wind-electric generators require a certain minimum wind speed. Let's explore the options given and determine which one is correct.
A: 1.5 km/h
- This wind speed is too low for wind-electric generators to function properly. It is not sufficient to generate significant power.
B: 15 km/h
- This wind speed is the correct answer. Wind-electric generators typically require a wind speed of at least 15 km/h to start generating power. It is the minimum threshold for efficient operation.
C: 150 km/h
- This wind speed is too high for wind-electric generators. While they can withstand strong winds, 150 km/h is beyond their operational limit and may cause damage.
D: 1500 km/h
- This wind speed is extremely high and far beyond the capability of wind-electric generators. Such wind speeds are typically associated with severe storms and hurricanes.
Therefore, the correct answer is B: 15 km/h. Wind-electric generators need wind speeds of at least 15 km/h to work properly.

Let AB be the tree bowed at the point C so that part CB takes the position CD.
Then, CD = CB.
Let AC = x meters. At that point, CD = CB = (10 - X) m and ∠ADC = 60°.
AC/AC = sin60° => x/(10 - x) = √3/2
=> 2x = 10 √3 - √3x
=> (2 + √3) x = 10 √3
=>x = 10 √3/ (2 + √3) * (2 - √3)/(2 - √3) = 20 √3 - 30)m
= (20 * 1.73 - 30) m = 4.6m
=> Required height = 4.6m.

The comparison of infant mortality rates between Kerala and Haryana reveals that Kerala has lower infant mortality rates compared to Haryana. This indicates that Kerala likely has better child welfare services, healthcare infrastructure, and overall well-being for infants compared to Haryana.

The correct answer is Karnal.

About Haryana

Arteries are the blood vessels which carry oxygenated blood from the heart to the organs. It breaks up into several branches of capillaries before entering the organs. These capillaries again reunite to form venules and ultimately veins which carry the deoxygenated blood towards the heart.