Past Questions — 2023

Step-by-step analysis of the statements: 1. Statement (a): 'land use planning systems do the same thing as EIA'. This is FALSE. Land use planning is a strategic, broad-scale process used to designate where certain activities (residential, industrial, agricultural) should occur across a region. Environmental Impact Assessment (EIA), however, is a project-specific tool used to predict the environmental consequences of a specific proposed development to decide whether it should proceed and how to mitigate its impacts. While they are complementary, they serve different functions. 2. Statement (b): 'EIA is costly and time consuming'. This is TRUE. Conducting a comprehensive EIA requires hiring specialists, performing field surveys, public consultations, and detailed reporting, all of which require significant financial investment and time. 3. Statement (c): 'EIA is intended to be a rational and comprehensive assessment'. This is TRUE. The core objective of EIA is to provide a systematic, science-based, and holistic evaluation of potential impacts to ensure informed decision-making. 4. Statement (d): 'EIA is a process'. This is TRUE. EIA is not a single report but a multi-stage process involving screening, scoping, impact analysis, mitigation, reporting, and monitoring. Since the question asks for the FALSE statement, option (a) is the correct answer.

In surveying, specifically topographic and route surveys, 'horizontal angles' are categorized based on how they are measured relative to a reference meridian or a previous line. 1. **Bearing (Option a):** This is a specific type of horizontal angle measured from a reference meridian (North or South) to the survey line. It is a fundamental way of expressing direction. 2. **Azimuth (Option b):** This is a horizontal angle measured clockwise from a prime meridian (usually North) to the line of sight. It is a standard method for defining direction in topographic surveys. 3. **Deflection Angle (Option d):** This is the horizontal angle between the extension of the preceding line and the forward line. It is commonly used in route surveys (roads, railways) to describe changes in direction. **Why Option (c) is the correct answer:** 'Horizontal angle' is the general umbrella term that encompasses bearings, azimuths, and deflection angles. It is the category itself, not a specific 'type' of horizontal angle used for measurement/notation in the same way the others are. Therefore, it is logically inconsistent to list 'horizontal angle' as a specific type of horizontal angle.

Rajiv Awas Yojana (RAY) was launched by the Ministry of Housing and Urban Poverty (MoHUP) in 2009. Its primary objective is to make all slums 'slum-free' by providing secure tenure and housing to the urban poor/slum dwellers. It focuses on the redevelopment of slums through a partnership between the government, the community, and the private sector. Analysis of other options: - Option (a) is incorrect because RAY is an urban-centric scheme, not for the rural population. - Option (c) is incorrect because it targets urban housing, not rural housing finance. - Option (d) is incorrect because Indira Awas Yojana (IAY) was a rural housing scheme; RAY is specifically designed for urban slum rehabilitation and is not a supplementary finance scheme for IAY.

To identify the 'Private housing finance agency' among the options, we must categorize the institutions based on their ownership and operational nature in the Indian financial system: 1. **HUDCO (Housing and Urban Development Corporation Ltd):** This is a Government of India enterprise (Public Sector Undertaking) under the Ministry of Housing and Urban Affairs. It primarily provides wholesale finance to primary lending institutions rather than acting as a private agency. 2. **LIC (Life Insurance Corporation of India):** While LIC is a statutory corporation owned by the government, in the context of housing finance markets, it operates as a non-banking financial entity that provides housing loans to the general public. In many academic and competitive exam contexts regarding 'Private' vs 'Public' (Government-run) banking, LIC is categorized as a non-bank financial institution providing private-sector style credit services compared to government-funded development agencies like HUDCO. 3. **IDBI (Industrial Development Bank of India):** Originally a development bank established by the Government of India, it has since transitioned into a full-service commercial bank. It is primarily categorized as a public sector/commercial bank. 4. **Co-operative banks:** These are member-owned financial institutions. While they are 'private' in terms of ownership by members, they are categorized as a specific 'Co-operative' sector of banking, distinct from 'Private Housing Finance Agencies' (which usually refers to HFCs or non-banking financial companies). Comparing the options, LIC acts as a major non-bank provider of housing finance. However, it is important to note that in strict legal terms, LIC is a statutory body. But in the context of this specific exam's classification of 'Private' (meaning non-government development bank/non-commercial bank), LIC is the most fitting answer among the choices provided.

Step-by-step reasoning: 1. Horizontal distance measurement is the process of determining the linear distance between two points on a horizontal plane. 2. Chaining (or Chain Surveying) is the most fundamental method of linear measurement where a chain or tape is used to measure the direct horizontal distance between two points. 3. Tachymetry (Option b) is a method of optical surveying used to find both horizontal and vertical distances using a tachymeter, but it is an indirect method based on trigonometry and stadia constants. 4. Theodolite survey (Option c) is primarily used for measuring horizontal and vertical angles; while distances can be calculated using these angles, the instrument itself measures angles, not distance. 5. Compass survey (Option d) is used to determine the direction (bearing) of lines and is primarily used for traversing, not for direct distance measurement. Therefore, chaining is the primary and direct method for horizontal distance measurement.

The question asks to identify which region is NOT characterized by a sparse population. 1. **Polar Regions (Option a):** These are areas of extreme cold and ice (e.g., Antarctica, Arctic), making them nearly uninhabitable and thus sparsely populated. 2. **The Atacama (Option b):** Located in Chile, the Atacama is one of the driest non-polar places on Earth. Extreme aridity prevents large-scale human settlement, making it a sparsely populated region. 3. **Equatorial Region (Option d):** While some parts are populated, the dense tropical rainforests (like the Amazon or Congo basins) often create harsh living conditions, high humidity, and disease vectors, leading to overall sparse population densities compared to temperate zones. 4. **South-East Asia (Option c):** This region (including countries like Indonesia, Vietnam, Thailand, and the Philippines) is one of the most densely populated areas in the world due to fertile volcanic soils, favorable climates for wet-rice cultivation, and extensive coastlines. Therefore, South-East Asia is a region of dense population, not sparse population.

Among the cities listed in the North East region of India, Guwahati (Assam) consistently records the highest levels of air pollution. This is primarily due to its status as the largest urban center and commercial hub of the region, leading to higher vehicular density, industrial emissions, and construction activities. In contrast, cities like Aizawl, Imphal, and Kohima are smaller in population and industrial scale, and their hilly topography often allows for better dispersion of pollutants compared to the valley-based urban sprawl of Guwahati. Data from the Central Pollution Control Board (CPCB) and various Air Quality Index (AQI) monitors frequently place Guwahati as the most polluted city in the North East, particularly during the winter months when temperature inversion traps pollutants near the ground.

The classification of water based on Total Dissolved Solids (TDS) is a standard geological and hydrological practice. While there are slight variations between different agencies, the general classification used by geological surveys (such as the USGS) is as follows: 1. Freshwater: TDS < 1,000 mg/L (or ppm). 2. Brackish/Slightly Saline: TDS between 1,000 and 10,000 mg/L. 3. Saline: TDS between 10,000 and 35,000 mg/L. 4. Brine: TDS > 35,000 mg/L. Note: The question mentions '1000 ml/litre', which is a typographical error in the exam paper; it should be '1000 mg/litre' (milligrams per litre). Based on the numerical value of 1000, water below this threshold is categorized as freshwater. - Option (a) Brine water is highly concentrated salt water (usually > 35,000 mg/L). - Option (c) and (d) refer to brackish water, which exceeds the 1,000 mg/L limit.

Environmental Impact Assessment (EIA) is a formal process used to evaluate the environmental consequences of a proposed project or development. In the context of governance and town planning, an EIA is not merely a technical or logical exercise; it is a 'Legal report' because it is mandated by law (such as the Environment Protection Act in India or similar legislation globally). The submission of an EIA report is a statutory requirement for obtaining 'Environmental Clearance' from the government. Without this legal document, a project cannot legally proceed. - Option (a) 'Applicant' is a person or entity, not a type of report. - Option (b) 'Logical' describes a quality of reasoning, but does not define the status of the report in a regulatory framework. - Option (c) 'Legal' correctly identifies that the EIA is a mandatory legal instrument required for regulatory compliance.

Environmental Impact Assessment (EIA) is a systematic process used to evaluate the potential environmental effects of a proposed project or development. The primary objective of EIA is to ensure that environmental considerations are integrated into the decision-making process. By balancing the need for development with the necessity of protecting the environment, EIA directly supports the goal of 'Sustainable Development'—which is defined as development that meets the needs of the present without compromising the ability of future generations to meet their own needs. Why other options are incorrect: - b. Economic growth: While EIA may allow for economic growth, its primary goal is to regulate and mitigate the negative impacts of that growth, not to promote growth itself. - c. Involvement of public: Public participation is a *tool* or a *component* of the EIA process, not the overarching goal that EIA supports alongside environmental protection. - d. Proposed activities: Proposed activities are the *subject* of the EIA, not the goal it supports.

Total Dissolved Solids (TDS) refer to the combined content of all inorganic and organic substances dissolved in water (such as salts, minerals, and metals). To reduce TDS, processes that can separate dissolved ions or molecules from the solvent are required. 1. **Ion Exchange (Option b):** This process uses resins to swap undesirable dissolved ions (like Ca2+ or Mg2+) with other ions (like H+ or OH-), effectively removing dissolved salts from the water. It is a primary method for water softening and demineralization. 2. **Distillation (Option c):** This is a phase-change process where water is boiled into vapor and then condensed back into liquid. Since dissolved solids have much higher boiling points than water, they remain in the boiling vessel, resulting in distilled water with near-zero TDS. 3. **Osmosis (Option a):** Natural osmosis is the movement of solvent from a low-solute concentration to a high-solute concentration; it does not 'reduce' TDS in a treatment sense. However, **Reverse Osmosis (RO)** does reduce TDS. Since the option specifies 'Osmosis' and not 'Reverse Osmosis', it is technically incorrect in the context of a treatment technique. Since both Ion Exchange and Distillation are established techniques for reducing TDS, option (d) is the correct choice.

1. Understanding Normal Rain: Pure water has a pH of 7.0. However, normal rain is slightly acidic because carbon dioxide (CO2) from the atmosphere dissolves in rainwater to form weak carbonic acid (H2CO3). This typically results in a natural pH of approximately 5.6. 2. Defining Acid Rain: Rain is classified as 'acid rain' when its pH drops significantly below the natural level of 5.6. This occurs due to the presence of stronger acids, primarily sulfuric acid (H2SO4) and nitric acid (HNO3), which are formed when sulfur dioxide (SO2) and nitrogen oxides (NOx) are emitted into the atmosphere (mostly from industrial processes and vehicle exhausts). 3. Evaluating Options: - Option (a) 'Less than 5.6' is correct as it defines the threshold for acid rain. - Option (b) 'More than 7' describes alkaline/basic water. - Option (c) 'inbetween 7 to 13' describes a range of basic/alkaline solutions. - Option (d) is incorrect because option (a) is the scientifically accepted definition.

The Air (Prevention and Control of Pollution) Act was enacted by the Parliament of India in 1981 to prevent, control, and abate air pollution. The Act was subsequently amended in 1987 to include 'noise pollution' under the definition of air pollutants and to strengthen the powers of the State Pollution Control Boards. Analysis of other options: - Option (a): 1986 refers to the Environment (Protection) Act, not the Air Act. - Option (b): 1976 is not the enactment year of the Air Act. - Option (d): 1972 refers to the Water (Prevention and Control of Pollution) Act.

In India, crops are primarily categorized into Kharif and Rabi based on the sowing and harvesting seasons. 1. **Rabi Crops**: These are winter crops. They are typically sown in October-November (winter season) and harvested in March-April (spring). They require a cool climate during growth and a warm climate during germination and harvesting. Examples include Wheat, Barley, Peas, and Gram (Chickpea). 2. **Kharif Crops**: These are monsoon crops. They are sown at the beginning of the rainy season (June-July) and harvested in September-October. They require high temperature and high humidity. Examples include Rice, Maize, Millets, and Cotton. Analyzing the options: - **Rice (a)**: A Kharif crop requiring heavy rainfall. - **Millets (b)**: Generally Kharif crops (though some varieties vary, they are primarily monsoon crops). - **Gram (c)**: A pulse crop sown in winter, making it a classic Rabi crop. - **Cotton (d)**: A Kharif crop requiring high temperatures and specific moisture levels during the monsoon.

ASEAN stands for the Association of Southeast Asian Nations. It is a regional intergovernmental organization comprising ten countries in Southeast Asia, which promotes intergovernmental cooperation and facilitates economic, political, security, military, educational, and sociocultural integration among its members. Analysis of options: - Option (a) 'Association of Sea Nation' is incorrect as it misrepresents the geographical and political nature of the organization. - Option (b) 'Association of South East African Nation' is incorrect because ASEAN is located in Asia, not Africa. - Option (c) 'Association of South East Asia Nation' is the correct expansion (though the formal name is 'Nations' plural, this is the intended correct option among the choices provided). - Option (d) is incorrect as option (c) provides the correct identification.

The question refers to the principles of CPTED (Crime Prevention Through Environmental Design). CPTED is a multi-disciplinary approach to deterring criminal conduct by influencing offender decisions through the strategic design of the built environment. The three primary pillars of CPTED are: 1. Natural Surveillance: Designing the layout so that people can easily see what is happening around them (e.g., windows facing the street, adequate lighting), which increases the risk of an offender being caught. 2. Natural Access Control: Using physical and psychological barriers (e.g., fences, gates, strategic landscaping) to guide people into specific entrances and discourage access to private areas. 3. Territoriality: Creating a clear distinction between public and private spaces (e.g., through changes in paving, signage, or hedges) to encourage residents to take ownership of their space and challenge intruders. Since all three options (a, b, and c) are fundamental components of crime prevention in housing design, the correct answer is 'Above all' (meaning all of the above).

In the context of housing finance and urban planning, HFI stands for Housing Finance Institute. These are specialized financial institutions established to provide long-term loans and financial assistance to individuals and developers for the construction, purchase, or renovation of residential properties. - Option (a) 'Housing Factor Index' is not a standard term used in housing finance. - Option (c) 'Housing Finance International' is not a recognized general acronym for a type of financial institution in this context. - Option (b) correctly identifies the institutional nature of HFI, which aligns with the subject matter of Housing Finance for Town Planning examinations.

Newly Industrialized Countries (NICs) are nations that have transitioned from an agrarian or underdeveloped economy to a modernized industrial economy with a high growth rate, typically characterized by export-oriented industrialization. 1. Taiwan, Singapore, and Hong Kong (along with South Korea) are famously known as the 'Four Asian Tigers'. They are the quintessential examples of NICs because they experienced rapid industrialization and economic growth between the 1960s and 1990s, moving from low-tech manufacturing to high-tech industries and global financial hubs. 2. North Korea, by contrast, has maintained a centrally planned, command economy that is largely isolated from global trade. It has not undergone the market-driven industrialization or the export-led growth characteristic of NICs. Its economy remains stagnant and underdeveloped compared to the other options provided. Therefore, North Korea is not a Newly Industrialized Country.

Informal housing refers to residential dwellings that are constructed without legal title to the land, lack official building permits, or do not comply with formal planning and zoning regulations. 1. **Squatter (Correct):** Squatter settlements (or slums) are the quintessential form of informal housing. They occur when people occupy land without legal permission or ownership, building makeshift shelters. These are unplanned and operate outside the formal legal and regulatory framework of urban planning. 2. **Apartment (Incorrect):** Apartments are formal housing units, typically designed by architects and constructed according to municipal building codes and land-use laws. 3. **Group Housing (Incorrect):** Group housing refers to planned residential complexes (like gated communities or housing societies) developed by government agencies or private developers under formal regulatory approval. 4. **Corporate Housing (Incorrect):** This is a formal arrangement where companies provide furnished apartments or houses for employees, operating entirely within the legal real estate market.

Step-by-step analysis of the options: 1. **PMAY (Pradhan Mantri Awas Yojana)**: This is a flagship housing scheme launched by the Government of India with the objective of providing 'Housing for All'. It is divided into two components: PMAY-Urban (PMAY-U) and PMAY-Gramin (PMAY-G), focusing specifically on the development and affordability of housing sectors. 2. **HRIDAY (Heritage City Development and Augmentation Yojana)**: This scheme focuses on the preservation and development of the heritage character of cities, rather than general housing development. 3. **AMRUT (Atal Mission for Rejuvenation and Urban Transformation)**: This is an urban renewal mission focused on improving basic civic infrastructure such as water supply, sewerage, storm water drains, and green spaces. 4. **SBM (Swachh Bharat Mission)**: This is a national campaign focused on sanitation and eliminating open defecation through the construction of toilets and waste management systems. Therefore, PMAY is the only option specifically dedicated to housing sector development.

Slash and burn agriculture is a characteristic of primitive subsistence farming. In this method, farmers clear a patch of land by cutting down trees and burning them; the ashes are then mixed with the soil to provide nutrients. Once the soil loses its fertility, the farmers move to a new plot, allowing the old land to recover naturally. Why other options are incorrect: - b. Intensive subsistence: This involves high inputs of labor and capital on small plots of land to maximize yield, typically using irrigation and fertilizers rather than shifting plots. - c. Plantation: This is a form of commercial farming where a single crop (like tea, coffee, or rubber) is grown on a large scale for sale in the market. - d. Commercial: This refers to large-scale farming aimed at profit, utilizing modern machinery, chemical fertilizers, and high-yielding variety (HYV) seeds.

Environmental Impact Assessment (EIA) is a proactive tool used to predict the environmental consequences of a proposed project. However, to ensure that the predictions made during the EIA are accurate and that the mitigation measures are being implemented effectively, a follow-up mechanism is required. This process is known as Environmental Auditing. 1. **Environmental Auditing** is the systematic, documented verification process used to evaluate whether the project's actual environmental impacts align with the predictions made in the EIA and whether the project is complying with the Environmental Management Plan (EMP). It essentially serves as the 'monitoring and evaluation' phase of the EIA cycle. 2. **Why other options are incorrect:** - **Specification (a):** This refers to the detailed description of materials or standards required for a project, not a monitoring mechanism. - **Reporting (c):** While reporting is a part of auditing, it is the act of documenting findings rather than the comprehensive mechanism for monitoring and evaluation itself. - **Concluding (d):** This is simply the act of finishing a process and does not constitute a technical mechanism for ongoing environmental oversight.

According to the official data from the Census of India 2011, the population density of Mizoram was recorded as 52 persons per square kilometer. Population density is calculated by dividing the total population of a region by its total land area. Mizoram has a relatively low population density compared to the national average of India (382 per sq km) due to its rugged mountainous terrain and dense forest cover. Comparing the options: - Option (a) 100 per sqkm: Incorrect. - Option (b) 150 per sqkm: Incorrect. - Option (c) 75 per sqkm: Incorrect. - Option (d) 52 persqkm: Correct, as per the 2011 Census data.

The contribution of the eight North-Eastern states (Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland, Sikkim, and Tripura) to India's national GDP (Gross State Domestic Product - GSDP) has historically been low compared to the industrial hubs of the west and south. According to economic data and reports from the Ministry of Development of North Eastern Region (DoNER) and the Reserve Bank of India (RBI), the combined contribution of these states typically hovers around 2.5% to 3% of the national GDP. Option (b) 2.8% is the most accurate representation of this economic share. Options (c) 8.5% and (d) 12.5% are significantly overestimations, as no single small region of eight small states reaches that threshold. Option (a) 0.1% is an extreme underestimation, as the region's agricultural and hydroelectric potential contributes far more than a fraction of a percent.

Green building focuses on sustainability, reducing the carbon footprint, and utilizing industrial waste materials to replace traditional cement (which is carbon-intensive). 1. Fly Ash & Green Concrete: Fly ash is a byproduct of coal combustion and is widely used as a partial replacement for cement (pozzolanic material) to reduce CO2 emissions. Green concrete refers to concrete that uses recycled materials or low-carbon binders. 2. Silica Fume and Red Mud: Silica fume is a byproduct of silicon metal production and enhances the strength and durability of concrete. Red mud (bauxite residue) is an industrial waste from alumina production that can be incorporated into bricks or concrete to reduce landfill waste. 3. Marble Dust and Blast Furnace Slag: Marble dust is a waste product from the stone industry used as a filler in green bricks/concrete. Ground Granulated Blast Furnace Slag (GGBS) is a byproduct of steel manufacture and is one of the most common sustainable alternatives to Portland cement. Since all the materials listed in options a, b, and c are industrial byproducts used to create sustainable, eco-friendly construction materials, the correct answer is 'All of these'.