UGC NET Questions (Paper – 1)

All five statements are correct: truth tables enumerate combinations, test validity via true-premise/false-conclusion rows, identify tautologies by all-true columns, require 2³ = 8 rows for three variables, and underpin many exam solutions even when not drawn.

Option A:
Option A is incomplete because it omits E (implicit exam use).

Option B:
Option B is incomplete because it omits D (8-row fact for three variables).

Option C:
Option C is correct because it includes all true statements (A–E).

Option D:
Option D is incorrect because it omits A (the basic definition of what truth tables do).

Statements A, B, C and D define different forms of triangulation, and E explains its main purpose. A is true because data triangulation uses varied sources or times, while B is correct that investigator triangulation brings in multiple researchers. C accurately describes methodological triangulation, and D is right that theory triangulation applies several theoretical lenses. E is also true since triangulation aims to enhance credibility by cross-checking evidence, whereas F is false because triangulation is widely used in qualitative and mixed-methods research, not only quantitative work.

Option A:
Option A is correct as it includes all the valid statements about types and purposes of triangulation and omits F, which is overly restrictive. Together, these statements show that triangulation can be applied at several levels to strengthen research findings. Hence, this option contains all and only the true statements.

Option B:
Option B excludes statement E, ignoring the central reason for using triangulation, namely enhancing credibility of results. While A, B, C and D are correct, the omission of E leaves the account incomplete. Therefore this option cannot be accepted as correct.

Option C:
Option C incorporates F, which wrongly limits triangulation to quantitative studies, and leaves out A, which defines data triangulation. By mixing a false statement with true ones and omitting a correct statement, this combination becomes conceptually flawed.

Option D:
Option D also includes F and omits B, thereby restricting triangulation to certain methods and ignoring the role of multiple investigators. This inaccurate representation disqualifies the option as a correct answer.

The decimal number 255 is one less than 256, which is 16². In hexadecimal, 16² corresponds to 100₁₆, so 255 must be written as 1 less than that, which is FF₁₆. Each F represents 15, and 15×16 + 15 = 240 + 15 = 255. Thus, FF₁₆ is the correct hex representation of 255₁₀.

Option A:
Option A correctly uses the relationship between powers of 16 and the decimal system. It recognises that FF₁₆ is the maximum value in two hex digits, analogous to 255 in decimal. This makes it a standard boundary value in byte-oriented systems.

Option B:
Option B, F0₁₆, equals 15×16 + 0 = 240 in decimal, which is smaller than 255. It neglects the contribution of the least significant digit required to reach 255. Hence it is an underestimation.

Option C:
Option C, FE₁₆, represents 15×16 + 14 = 254 in decimal, which is close but still one less than the required value. This corresponds to 254₁₀, not 255₁₀.

Option D:
Option D, F1₁₆, corresponds to 15×16 + 1 = 241 in decimal, which again does not equal 255. Since only FF₁₆ gives 255, this option cannot be correct.

Pratyaksha is defined in Nyaya as knowledge generated by the direct contact of sense organs with their appropriate objects. Such cognition is immediate and does not depend on prior inference or testimony for its occurrence. It provides a basic and widely accepted source of information about the world. Thus, the sense-based knowledge mentioned in the stem is correctly termed pratyaksha.

Option A:
Option A, anumana, refers to inferential knowledge that arises from a sign and its invariable concomitance with the probandum and is therefore mediate rather than immediate. It presupposes pratyaksha or other pramanas for the establishment of vyapti. Hence anumana does not satisfy the condition of direct sense contact described in the stem.

Option B:
Option B is correct because pratyaksha literally means perception and is specifically tied to the operation of the senses in Nyaya. It captures the immediacy and non-inferential character of the cognition described. By isolating pratyaksha as a distinct pramana, Nyaya can examine conditions under which perceptual knowledge is valid or defective.

Option C:
Option C, upamana, is comparison-based knowledge where an unfamiliar object is understood through similarity with a known one and does not rely solely on fresh sense contact with that object. The key element there is recognition of likeness rather than mere sensory presence.

Option D:
Option D, sabda, denotes verbal testimony as a pramana, where one acquires knowledge by trusting the statements of reliable speakers or scriptures. It is mediated by language and authority, not by the bare functioning of the senses.

Statements A and B restate De Morgan’s laws, showing how negation distributes over “and” and “or”, C correctly defines logical equivalence in terms of matching truth values and D is true because De Morgan’s laws explicitly connect conjunction, disjunction and negation. Statement E is false since contradictory statements cannot both be true in any possible situation; one must be false whenever the other is true. Hence, the combination A, B, C and D only is correct.

Option A:
Option A is incomplete because, although it lists three true statements, it omits D and thus does not explicitly say that De Morgan’s laws are the ones relating “and”, “or” and “not”. Without D, the named connection between these operators is not emphasised.

Option B:
Option B is also incomplete because it leaves out A and thereby fails to include the first De Morgan equivalence concerning the negation of “p and q”. That omission makes the description of the laws partial.

Option C:
Option C is correct as it bundles all four true statements, fully describing De Morgan’s laws and logical equivalence, while rejecting E, which mischaracterises contradictions. It aligns with the logical tools used in UGC NET reasoning.

Option D:
Option D is wrong because it includes E, the false statement about contradictions, and omits C, the formal definition of logical equivalence. This combination mixes error with omission.

Let the original salaries be 7k and 9k. After adding ₹5600 to each, the new salaries become 7k + 5600 and 9k + 5600, which are in the ratio 9:11. So (7k + 5600)/(9k + 5600) = 9/11. Solving this equation gives k = 2800, so B’s original salary is 9k = 9 × 2800 = ₹25,200. Thus, ₹25,200 is the unique value that satisfies both the original and changed ratios.

Option A:
Option A, ₹19,600, equals 7 × 2800 and represents A’s original salary, not B’s. If we treat ₹19,600 as B’s original salary, we cannot express A’s salary as a smaller value in the ratio 7:9 while still matching the increment condition. Therefore it does not satisfy the relationship implied by the change from 7:9 to 9:11.

Option B:
Option B is correct because it matches the 9k term obtained from solving the proportion equation. Substituting ₹25,200 for B and ₹19,600 for A, we get new salaries ₹25,200 + ₹5600 = ₹30,800 and ₹19,600 + ₹5600 = ₹25,200, whose ratio is 25,200:30,800 = 9:11. This verifies that ₹25,200 is consistent with all given information.

Option C:
Option C, ₹28,000, would imply k = 3111.11… if we forced 9k = ₹28,000, which is not an integer and contradicts the natural-number scaling in the original ratio 7:9. Using that figure in the increment equation will not yield the new ratio 9:11. Hence, ₹28,000 cannot be B’s original salary.

Option D:
Option D, ₹30,800, is actually B’s new salary after the increment in the correct solution. Treating it as the original salary would lead to an even larger value after adding ₹5600 and a ratio that no longer matches 9:11. Therefore, ₹30,800 is not consistent with the given conditions.

Statements A, B, C and E accurately describe the threefold classification of inference in Indian logic and its exam relevance, while D is false. Pūrvavat moves from cause to effect, śeṣavat from effect to cause, and sāmānyato dṛṣṭa rests on general observation not limited to a single causal link. Far from being rejected, all three are taken as legitimate types of inference, and UGC NET frequently uses examples to test this distinction. Thus A, B, C, E only is the correct group of statements.

Option A:
Option A is incomplete because it omits E, ignoring that exam questions may directly ask students to classify examples according to these types. A, B, C only therefore does not fully satisfy the question requirements.

Option B:
Option B is correct because it includes all of the true descriptive and exam-related statements while excluding D, which wrongly claims that one type is rejected. This combination matches standard Indian philosophy texts.

Option C:
Option C is wrong since it excludes A, losing the explanation of pūrvavat inference and thereby presenting only part of the scheme. B, C, E only does not cover the entire threefold division.

Option D:
Option D is incorrect because it leaves out B, failing to include śeṣavat, and so A, C, E only is incomplete.

B, C and E are correct; A and D are false. A simple proposition has no logical connective; compound propositions use connectives. “It is raining and it is cold” is compound; “It is raining” is simple. Recognising this helps symbolic translation in UGC NET.

Option A:
Option A is incorrect because it includes A, which wrongly says a simple proposition contains a connective.

Option B:
Option B is incomplete because it omits E (exam translation relevance), which is true.

Option C:
Option C is correct because it includes all true statements (B, C, E) and excludes A and D (false).

Option D:
Option D is incorrect because it includes A and D, which are false.

Deductive reasoning starts from general premises or principles and derives specific conclusions from them. If the deductive argument is valid and its premises are true, the conclusion must be true. This feature of logical necessity is a hallmark of deduction. Hence reasoning from general to particular is correctly called deductive reasoning.

Option A:
Option A, inductive, works in the opposite direction, moving from particular cases to generalisations. Induction yields probabilistic support rather than necessary truth. Therefore it does not match the general-to-specific pattern described in the stem.

Option B:
Option B, analogical, relies on similarity between cases rather than on a general principle covering all relevant instances. Analogies suggest probable conclusions based on resemblance. Thus analogical reasoning is not defined by moving from general principles to specific conclusions.

Option C:
Option C correctly names deductive reasoning as the process of deriving specific claims from general assumptions. It preserves logical structure such that true premises guarantee a true conclusion. This makes deductive the best fit for the description in the question.

Option D:
Option D, causal, focuses on cause–effect relations and may be either inductive or deductive in structure. Causal reasoning does not by itself specify the direction from general to specific. Therefore it is not the most accurate label for the reasoning described here.

The Paris Agreement,adopted in 2015,sets a goal of keeping global temperature rise this century well below 2°C above pre industrial levels and pursuing efforts to limit it to 1.5°C. It relies on nationally determined contributions from all parties. The agreement represents a major global consensus on climate action. Therefore the description in the question points clearly to the Paris Agreement.

Option A:
The Rio Declaration consists of a set of principles on environment and development from the 1992 Earth Summit. It does not specify quantitative temperature limits. Hence it does not match the detailed climate target mentioned in the stem.

Option B:
The Doha Amendment relates to the second commitment period of the Kyoto Protocol. While it adjusts emission targets,it is not framed around a specific temperature limit goal. Therefore it is not the best answer here.

Option C:
The Cartagena Protocol deals with biosafety concerning transboundary movement of living modified organisms. Its focus is on protecting biodiversity from risks posed by biotechnology,not global temperature control. Thus it is unrelated to the description given.

Option D:
The Paris Agreement explicitly articulates the 2°C and 1.5°C temperature thresholds as collective goals. Because the question cites this exact aim,it can only refer to the Paris Agreement.

A research proposal is a comprehensive document prepared before the study is conducted, describing the problem background, objectives, literature context, methodology, ethical considerations, budget and timeline. It is usually submitted for review and approval by academic committees, funding bodies or supervisors. The proposal demonstrates the feasibility and scholarly merit of the planned study. Therefore, the detailed plan described in the stem is correctly called a research proposal.

Option A:
Proposals often include sections on sampling, instruments, data analysis strategies and expected outcomes, giving reviewers a clear picture of how the research will be implemented. This level of detail and its role in seeking approval align exactly with the description provided in the question.

Option B:
A synopsis is a brief summary of the proposed or completed study, often much shorter than a full proposal and sometimes prepared after an initial approval. It does not typically contain all the methodological and administrative details required in a formal plan. Hence, synopsis is not the best completion.

Option C:
A monograph is a scholarly book or in-depth written work on a single subject, usually reporting completed research rather than proposing it. It is produced after the study is done, not as a planning document, so monograph is not appropriate here.

Option D:
An abstract is a concise summary of a completed or proposed study, highlighting key elements in a few hundred words, and is not a full plan with detailed methods and schedules. Therefore, abstract cannot substitute for the detailed plan described in the stem.

Mitigation refers to efforts taken before a disaster to reduce its potential impact. These include structural measures such as dams,embankments and safe building codes as well as non structural measures like land use planning. The aim is to lessen damage even if a hazard occurs. Therefore the description in the question is best captured by the term mitigation.

Option A:
Mitigation involves proactive risk reduction rather than post disaster action. By addressing underlying vulnerabilities,it can significantly limit loss of life and property. This long term focus distinguishes mitigation from other phases of disaster management and makes it the correct answer.

Option B:
Recovery refers to measures taken after a disaster to restore normalcy and rebuild affected communities. It includes rehabilitation and reconstruction activities. Although important,it does not describe the pre disaster risk reduction strategies highlighted in the stem.

Option C:
Relief usually denotes immediate assistance after a disaster,such as food,shelter and medical aid. It is reactive and short term in nature. Hence it does not match the long term structural and non structural strategies described.

Option D:
Reconstruction focuses on rebuilding damaged infrastructure and housing after the disaster has struck. It is part of the post disaster phase,not a preventive strategy. Therefore it is not the correct term for the measures mentioned in the question.

Statements A, B, C and E express the key features of holistic, multidisciplinary education in NEP 2020. The policy promotes flexible curricula and multiple exits, integrates diverse disciplines and values courses from arts and Indian knowledge systems. It also gives importance to ethics and co-curricular development. Statements D and F are false because NEP encourages multidisciplinary institutions and explicitly stresses critical thinking rather than rote learning.

Option A:
Option A is incorrect because it omits E and thus ignores the importance of co-curricular activities, ethics and values, which are central to the holistic vision of NEP 2020.

Option B:
Option B is incorrect as it leaves out A, so it does not mention the structural reform of flexible curricula with multiple entry and exit, an important aspect of the policy.

Option C:
Option C is correct since it groups A, B, C and E, the four true statements about flexibility, disciplinary integration, course choice and ethical development, while excluding D and F, which contradict the spirit of NEP 2020.

Option D:
Option D is incorrect because it includes D, which falsely claims that institutions must remain single-discipline, and therefore mixes one false statement with otherwise true statements.

Ecocentrism holds that ecosystems, species and natural processes have value in their own right, independent of human interests. It argues for moral consideration of the entire ecological community. The stem’s emphasis on intrinsic value of non human nature aligns precisely with this stance,so ecocentrism is the correct term.

Option A:
Anthropocentrism places humans at the centre of moral concern, valuing nature primarily for its utility to people. This is the opposite of the position described in the question,so it cannot be correct.

Option B:
Technocentrism emphasises technological innovation and human ingenuity as solutions to environmental problems. It does not necessarily grant intrinsic value to ecosystems; instead it often views nature instrumentally.

Option C:
Ecocentrism expands the moral community beyond humans to include all living beings and ecological systems. It underpins many deep ecology and conservation philosophies. This broader valuation reflects exactly what the stem describes.

Option D:
Utilitarianism is an ethical theory that seeks the greatest good for the greatest number, usually focusing on human welfare. While it can be extended to non humans, it is not inherently about intrinsic value of ecosystems.

The Global Biofuel Alliance seeks to accelerate the development and deployment of sustainable biofuels by improving standards, trade and technology cooperation. It encourages higher blending of biofuels like ethanol in transport fuels to cut oil imports and greenhouse gas emissions. For countries like India, the alliance also links to better price realisation for farmers who supply feedstock, strengthening the people–environment–development nexus.

Option A:
This option is wrong because the alliance concerns biofuels, not coal production.

Option B:
This option correctly reflects the alliance’s intent to coordinate sustainable biofuel growth, address transport emissions and benefit agricultural stakeholders.

Option C:
A blanket ban on all bioenergy would conflict with the alliance’s purpose of promoting sustainable biofuels as part of the energy mix.

Option D:
The alliance is open to a wide range of countries, including developing ones; restricting technologies only to rich countries is contrary to its cooperative spirit.