Quiznetik

Essential of Formal Logic | Set 2

1. A syllogism consists of _______ terms.

Correct : C. three

2. A syllogism consists of ________ premisses.

Correct : B. three

3. The major term is the _______________.

Correct : B. copula

4. The minor term is the _______________.

Correct : A. subject of the conclusion

5. That term which occurs in the premises and not in the conclusion is

Correct : D. middle term.

6. __________ performs the function of an intermediary.

Correct : B. middle term

7. Each term occurs ______ in the syllogism.

Correct : B. twice

8. “B is a friend of C. A is a friend of B. Therefore A is a friend of C.” The above syllogism commits the fallacy of__________.

Correct : A. quarterino-terminorum

9. ____________ is a fallacy which occurs when a syllogism uses its major term in one sense in the premise and in a different sense in the conclusion.

Correct : A. fallacy of ambiguous major

10. ____________ is a fallacy which occurs when in a syllogism the minor term means one thing in the minor premise and quite another in the conclusion.

Correct : B. fallacy of ambiguous minor

11. “ All donkeys are animals. All monkeys are animals. Therefore all monkeys are donkeys”. The fallacy committed by the above syllogism is

Correct : D. undistributed middle.

12. The fallacy occurs when the major term which is not distributed in the major premise but distributed in the conclusion is

Correct : C. illicit major

13. The fallacy occurs when the minor term which is not distributed in the minor premise but distributed in the conclusion is

Correct : D. illicit minor.

14. The form of the syllogism as determined by the position of the middle term is

Correct : A. figure

15. There are _____ types of categorical syllogism known as figures.

Correct : C. four

16. A _________ is a form of syllogism determined by the qulity and quantity of the three constituent propositions.

Correct : A. mood

17. A syllogism in which the major premise is a hypothetical proposition, the minor and the conclusion are categorical propositions is a_______.

Correct : B. hypothetical syllogism

18. A hypothetical syllogism is also called______.

Correct : A. conjunctive syllogism

19. A constructive hypothetical syllogism is also known as _______.

Correct : B. modus ponens

20. Modus tollens is also known as________.

Correct : D. destructive hypothetical syllogism.

21. A ___________ is a mixed syllogism whose major premise is a disjunctive propositions and whose minor premise and conclusion are categorical propositions.

Correct : C. disjunctive syllogism

22. The violation of the rules of a disjunctive syllogism commits the fallacy of ________.

Correct : C. improper disjunction

23. ______ is a valid mood of the first figure.

Correct : D. barbara.

24. ________ is a valid mood of second figure.

Correct : B. cesare

25. ________ is a valid mood of third figure.

Correct : D. datisi.

26. ________ is valid mood of fourth figure.

Correct : C. dimaris

27. A Dilemma is a ________ syllogism.

Correct : A. mixed

28. “He is either a saint or a sinner He is not a saint Therefore he is a sinner”. The above argument commits the fallacy of________.

Correct : B. improper disjunction

29. “All animals are mortal All men are animals Therefore all men are mortal.” _________ is the major term of the above syllogism.

Correct : A. mortal

30. “All thugs are murderers All thugs are Indians Therefore all Indians are murderers”. The fallacy commited by above argument is

Correct : A. illicit minor

31. __________ fallacy occurs when a term is used in two different meanings in the syllogism.

Correct : C. equivocation

32. All Indians are hardworking All Keralites are Indians Therefore, All Keralites are hardworking The above argument is

Correct : C. valid

33. If one premise is negative the conclusion must be________.

Correct : A. negative

34. Two_______ premises yield no valid conclusion.

Correct : B. particular

35. From two ________ premises no conclusion is possible.

Correct : C. negative

36. If one premise is particular the conclusion must be_________.

Correct : D. particulal.

37. A dilemma is ________ when disjunctive minor premise affirms the antecedents of the major premise.

Correct : A. constructive

38. A dilemma is ________ when disjunctive minor premise denies the consequents of the major premise.

Correct : B. destructive

39. A dilemma is simple when the conclusion is__________ proposition.

Correct : D. categorical.

40. A dilemma is complex when the conclusion is __________ proposition.

Correct : C. disjunctive