Artificial Intelligence: Knowledge Representation And Reasoning Week 1 NPTEL Assignment Answers 2025

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.