| 31. | ________ is used in game trees to reduce the number of branches of the search tree to be traversed without affecting the solution. |
| a. | Best first search |
| b. | Goal stack planning |
| c. | Alpha-beta pruning procedure |
| d. | Min-max search |
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Answer: (c).Alpha-beta pruning procedure
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| 32. | Which of the following special cases does not require reformulation of the problem in order to obtain a solution ? |
| a. | Alternate optimality |
| b. | Infeasibility |
| c. | Unboundedness |
| d. | All of the above |
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Answer: (a).Alternate optimality
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| 33. | The given maximization assignment problem can be converted into a minimization problem by |
| a. | subtracting each entry in a column from the maximum value in that column |
| b. | subtracting each entry in the table from the maximum value in that table |
| c. | adding each entry in a column from the maximum value in that column |
| d. | adding maximum value of the table to each entry in the table |
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Answer: (b).subtracting each entry in the table from the maximum value in that table
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| 34. | Consider the fractional knapsack instance n = 4, (p1, p2, p3, p4) = (10, 10, 12, 18). (w1, w2, w3, w4) = (2, 4, 6, 9) and M = 15. The maximum profit is given by (Assume p and w denotes profit and weight of objects respectively) |
| a. | 40 |
| b. | 38 |
| c. | 32 |
| d. | 30 |
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Answer: (c).32
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| 35. | Match the following: List-I List-II a. Absurd i. Clearly impossible being contrary to some evident truth. b. Ambiguous ii. Capable of more than one interpretation or meaning. c. Axiom iii. An assertion that is accepted and used without a proof. d. Conjecture iv. An opinion Preferably based on some experience or wisdom. Codes: a b c d |
| a. | i ii iii iv |
| b. | i iii iv ii |
| c. | ii iii iv i |
| d. | ii i iii iv |
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Answer: (a).i ii iii iv
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| 36. | Consider following two rules R1 and R2 in logical reasoning in Artificial Intelligence (AI):
 |
| a. | Only R1 is correct. |
| b. | Only R2 is correct. |
| c. | Both R1 and R2 are correct. |
| d. | Neither R1 nor R2 is correct. |
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Answer: (d).Neither R1 nor R2 is correct.
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| 37. | Consider the following AO graph. Which is the best node to expand next by AO* algorithm?
 |
| a. | A |
| b. | B |
| c. | C |
| d. | B and C |
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Answer: (a).A
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| 38. | In Artificial Intelligence (AI), what is present in the planning graph? |
| a. | Sequence of levels |
| b. | Literals |
| c. | Variables |
| d. | Heuristic estimates |
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Answer: (a).Sequence of levels
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| 39. | What is the best method to go for the game playing problem? |
| a. | Optimal Search |
| b. | Random Search |
| c. | Heuristic Search |
| d. | Stratified Search |
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Answer: (c).Heuristic Search
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| 40. | Which of the following statements is true ? |
| a. | The sentence S is a logical consequence of S1,..., Sn if and only if S1˄S2˄........˄Sn→S is satisfiable. |
| b. | The sentence S is a logical consequence of S1,..., Sn if and only if S1˄S2˄........˄Sn→S is valid. |
| c. | The sentence S is a logical consequence of S1,..., Sn if and only if S1˄S2˄........˄Sn˄¬S is consistent. |
| d. | The sentence S is a logical consequence of S1,..., Sn if and only if S1˄S2˄........˄Sn˄S is inconsistent. |
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Answer: (b).The sentence S is a logical consequence of S1,..., Sn if and only if S1˄S2˄........˄Sn→S is valid.
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