Artificial Intelligence: Knowledge Representation And Reasoning Week 1 NPTEL Assignment Answers 2026

1. Sherlock Holmes was

• a fictional character created by Arthur Conan Doyle
• the main character of a series of detective stories
• a moneylender created by Shakespeare
• a distant uncle of Elizabeth Holmes

Answer : See Answers

2. In AI, an intelligent agent is

• a government agent doing intelligence work
• an autonomous persistent goal-directed program
• a marketing agent that shows advertisements for websites
• none of the above

Answer :

3. The different kinds of reasoning are

• pleading with an instructor about your quiz marks
• making valid arguments using deduction
• bargaining with a shopkeeper about prices
• making plausible arguments using abduction
• making generalizations using induction

Answer :

4. Expectations ____________ .

• usually involve abductive reasoning from domain knowledge
• get dampened with persistently poor performance
• of our politicians have never been high
• help us process incoming information more efficiently

Answer :

5. Intelligent activity involves

• perception – making sense of incoming signals
• accounting – maintaining a distributed ledger
• cognition – reasoning with symbolic representations
• planning – making decisions to achieve one’s goals

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6. Labelling of images with names of objects in the scene

• involves pattern recognition
• is done effectively with neural networks
• is done effectively with logical reasoning
• involves working with hard copies

Answer :

7.The Winograd Schema involves presenting a sentence to the user and asking a question. Identify the true statements

• The sentence is chosen from one of two sentences with only one word changed
• The question can be answered by searching the internet
• The question gives you two options for the answer
• The question involves anaphora resolution

Answer :

8. Given the sentence “The trophy would not fit in the brown suitcase because it was too small“, the Winograd Schema question is

• where was the trophy not fitting?
• why was the trophy not fitting in the suitcase?
• how can the trophy be made to fit in the suitcase?
• what does “it” in the sentence refer to?

Answer :

9.It is not desirable to use natural language words indiscriminately in formal logic because

• not everyone knows every language
• logic has to be mathematical and natural languages are not
• a large vocabulary in logic will require a proportional number of rules
• we would not like to express the same fact in different ways

Answer :

10. A domain in logic ______________.

• is also known as a universe of discourse
• is a set of individuals a logic language can talk about
• is an area of expertise of logicians
• is an area of expertise of logicians

Answer :

11. Situational knowledge is

• knowledge of stereotypical situations in the world
• represented in Scripts as defined by Roger Schank
• represented in Frames as defined by Marvin Minsky
• useful in understanding events using abduction

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NPTEL Artificial Intelligence: Knowledge Representation And Reasoning Week 1 Assignment Answers 2024

1. The argument A uses __________ .

• Abduction
• Deduction
• Induction

Answer :- c
Explanation: Argument A uses examples or observations to arrive at a generalized conclusion, which is characteristic of inductive reasoning.

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2. The argument B uses __________ .

• Abduction
• Deduction
• Induction

Answer :- b
Explanation: Argument B draws a specific conclusion based on general rules or premises, which aligns with deductive reasoning.

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3. The argument C uses __________ .

• Abduction
• Deduction
• Induction

Answer :- a
Explanation: Argument C forms a hypothesis as an explanation for an observation, which is typical of abductive reasoning.

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4. The three statements, “bears eat honey”, “regular exercise improves health”, and “top cyclists have low resting heart rate” are accepted to be true based on __________ .

• Abduction
• Deduction
• Induction

Answer :- c
Explanation: These statements are generalized from repeated observations, which reflects inductive reasoning.

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5. Select the correct options. The Turing test was devised __________ .

• by Alan Turing
• to check whether a human spy is a double agent
• to check the correctness of Turing machines
• to test whether a machine is able to demonstrate human like intelligence

Answer :- a, d
Explanation: Alan Turing proposed the test to determine if a machine can exhibit intelligent behavior indistinguishable from a human.

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6. Graphics Processing Units are faster than Central Processing Units because they have more compute units. What does “they” refer to in the given sentence?

• Graphics Processing Units
• Central Processing Units

Answer :- a
Explanation: The pronoun “they” refers to Graphics Processing Units, which is the subject being described.

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7. Graphics Processing Units are faster than Central Processing Units because they have less compute units. What does “they” refer to in the given sentence?

• Graphics Processing Units
• Central Processing Units

Answer :- b
Explanation: In this sentence, “they” refers to Central Processing Units, which are being contrasted as having fewer compute units.

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8. Is ChatGPT (GPT-4-Turbo version), without using the support of solvers like Wolfram Alpha, likely to pass the Turing test?

• Yes
• No
• Cannot be determined

Answer :- b
Explanation: GPT-4-Turbo lacks consistent reasoning across long dialogues and contextual memory, making it unlikely to reliably pass the Turing test under strict conditions.

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9. Which of the following are fundamental to autonomous agents? (like Mars rover, self-driving cars, autonomous robots, etc.)

• Sensing — sense the surrounding environment
• Cognition — reason with symbolic representation
• Planning — make decisions to achieve a goal
• Act — take actions to achieve a goal

Answer :- a, b, c, d
Explanation: All of these are essential capabilities for an autonomous agent to function effectively in real-world environments.

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10. What do you recall about physical symbol systems (PSS)?

• A PSS defines the necessary reasoning procedures for an AI agent.
• A PSS is a set of symbols and a set of rules to manipulate those symbols.
• A PSS is derived from the three laws of robotics stated by Asimov.

Answer :- b
Explanation: A Physical Symbol System (PSS) involves symbols and rules for manipulating them — a foundational concept in symbolic AI.

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11. Which of the following are not physical symbol systems?

• Wolfram Alpha
• GPT4-Turbo
• A spring balance used to measure mass
• Grandma’s watch with coil-spring, balance-wheel and gears

Answer :- c, d
Explanation: The spring balance and mechanical watch operate physically without symbolic representation or manipulation, so they are not PSS.