Introduction to AI

Correct answer: D. Artificial Intelligence is limited only to robots.

AI is not limited to physical robots. It also appears in translation, recommendation systems, education tools, healthcare support, agriculture, and many software applications. Therefore, option D is the misconception. The other statements are reasonable: AI can find patterns in data, assist many tasks, and still benefit from human supervision.

Correct answer: B. Recommending songs based on a user's preferences and listening history

A song recommendation system analyses listening history and preference patterns to suggest content that may interest a particular user. This is a personalised AI application in entertainment, so option B is correct. The other activities are ordinary manual or simple counting tasks and do not involve such data-based recommendation.

Correct answer: C. Analysing a student's weaknesses and suggesting suitable practice

An AI learning tool can examine a student’s answers, errors, and progress and then recommend practice suited to that learner’s needs. Option C is therefore personalised support. Giving everyone identical work, hiding progress, or closing the classroom does not adapt learning to an individual student.

Correct answer: A. When it is used safely, fairly and responsibly

AI can benefit society when its goals are useful, its data and methods are handled fairly, privacy and safety are protected, and important results receive suitable human oversight. Option A includes these conditions. Unauthorised data sharing, unverified misinformation, and blind dependence can damage rights, trust, and safety.

Correct answer: A. It is a technology that helps machines learn from data, recognise patterns, and support decision-making.

AI refers to systems designed to perform tasks that commonly require human-like abilities, such as recognising patterns, processing language, making predictions, or supporting decisions. These systems depend on data, rules, or training and can make mistakes. Thus, option A is the most appropriate; the other options make false absolute claims.

Correct answer: B. उदाहरणों और डेटा से

In many AI and machine-learning systems, the machine is given examples represented as data and learns patterns or relationships from them. For instance, labelled images can help a system distinguish categories. Physical details such as the machine’s colour, room height, or chair design are irrelevant unless they are deliberately included as meaningful data for a particular task.

Correct answer: A. जब समस्या स्पष्ट हो और आँकड़े सही हों

AI works more effectively when the problem and objective are clearly defined and the data is accurate, relevant, and sufficient. These conditions help a model learn meaningful patterns and allow people to evaluate its results. Vague goals, poor data, or blind acceptance of outputs can produce unreliable or unfair decisions, so human checking remains important.

Correct answer: A. Predicting tomorrow's weather using past weather data

Prediction uses patterns in earlier data to estimate a future result. Forecasting tomorrow’s weather from past weather observations is therefore a prediction task. Identifying a cat is image classification, grouping similar customers is clustering, and preparing a summary is a language-generation or text-processing task.

Correct answer: A. It can produce incorrect results when trained on incorrect or biased data

AI systems learn from data and instructions, so poor-quality, incomplete, or biased data can lead to inaccurate or unfair outputs. More data does not guarantee perfect decisions in every situation. AI may also miss its own errors, and new tasks generally require suitable data, design, or human guidance.

Correct answer: B. False

The statement is false because AI is used in many software-based systems that are not robots. Examples include voice assistants, spam filters, recommendation systems, translation tools, and learning platforms. The word “only” makes the statement incorrect; robots are just one possible form in which AI may be used.

Correct answer: A. Learning from data

Learning from data allows an AI model to find patterns in examples and adjust its behaviour or predictions for later inputs. This is different from a fixed rule program, which repeats prewritten instructions. Random answers and constant manual operation do not represent improvement through learning.

Correct answer: A. A music app recommending songs based on your preferences

A music app can analyse listening history, selected songs, ratings, and similar user behaviour to recommend tracks. This is a data-based personalised service and may use AI. Reading notes, switching on a bulb, and looking at a clock can be done without a system learning preferences or making an intelligent recommendation.

Correct answer: A. Saving time and effort

AI can automate repetitive work such as sorting records, checking similar entries, or organising large amounts of information. Automation may reduce routine effort and save time, allowing people to focus on tasks requiring judgment or creativity. It does not always cause harm or necessarily violate privacy; those risks depend on design and use.

Correct answer: B. It enables machines to recognise patterns from data and perform decision-making tasks.

A key feature of AI is the ability to process information, recognise patterns, and produce predictions or decisions for suitable tasks. It is not merely hardware control or faster internet, and it does not completely replace human thinking or emotions in every situation. Human judgment remains important.

Correct answer: B. On past data and learned patterns

AI prediction normally uses relevant past data and patterns learned from examples. The system compares a new input with those patterns and estimates a likely outcome; the estimate is not a guarantee. Machine colour, wall height, or chair size would matter only if they were relevant features in a particular problem, not as general bases for prediction.

Correct answer: A. Identifying patterns in large datasets and giving recommendations

A central AI capability is finding patterns in data and using them for classification, prediction, or recommendations. For example, a system may study preferences and suggest suitable products or songs. Connecting hardware is a physical task, reading paper instructions alone is not necessarily intelligent processing, and digital devices require power to operate.

Correct answer: C. Because its use is increasing in many fields

AI is becoming relevant in areas such as education, healthcare, agriculture, communication, transport, and business. Understanding its basic ideas helps learners use technology wisely, recognise its limits, and prepare for changing study and work environments. The other options deny its practical applications or wrongly separate AI from learning and careers.