Quiznetik

Essential of Formal Logic | Set 1

1. Logic is the science of-----------.

Correct : A. thought

2. Aesthetics is the science of ------------.

Correct : A. truth

3. Logic is a ------------ science

Correct : B. normative

4. A normative science is also called ------------ science.

Correct : D. evaluative.

5. The ideal of logic is

Correct : B. beauty

6. The ideal of ethics is

Correct : C. goodness

7. The ideal of aesthetics is

Correct : B. beauty

8. The process by which one proposition is arrived at on the basis of other propositions is called-----------.

Correct : C. inference

9. Only--------------- sentences can become propositions.

Correct : A. indicative

10. Propositions which supports the conclusion of an argument are called

Correct : B. premises

11. That proposition which is affirmed on the basis of premises is called

Correct : D. conclusion.

12. The etymological meaning of the word logic is

Correct : B. the science of thought

13. The systematic body of knowledge about a particular branch of the universe is called------- .

Correct : A. science

14. The process of forming a mental image is called

Correct : C. conception

15. The verbal expression of a concept is called a --------.

Correct : D. term.

16. The verbal expression of a judgment is called ----------.

Correct : C. proposition

17. The verbal expression of reasoning is called---------.

Correct : A. an argument

18. According to James Mill logic is

Correct : B. a science

19. “Logic is the science which treats of the operations of the human mind in its search for truth”- is a definition of logic by

Correct : A. creighton

20. A ---------- is either true or false.

Correct : C. proposition

21. A ------- does not belong to a particular language.

Correct : B. proposition

22. A -------- does not have a physical existence.

Correct : A. proposition

23. The premisses provide conclusive grounds for the conclusion in ----------- argument.

Correct : B. deductive

24. The argumentation becomes a closed system in

Correct : A. deduction

25. That cannot advance beyond the scope of its premises is

Correct : C. deduction

26. The defining feature of a valid deduction is its

Correct : D. certainty.

27. Deductive arguments are typically ----------.

Correct : A. analytic

28. The relationship between premises and conclusion in a deductive argument is--.

Correct : D. implication-entailment.

29. In induction, reasoning proceeds to a conclusion that is ---------- to the scope of its premises.

Correct : B. not confined

30. In inductive reasoning the conclusion is -------.

Correct : A. probable

31. Discovering a new ------- is permissible in inductive reasoning.

Correct : D. evidence.

32. Inductive arguments are properly characterised as

Correct : B. strong-weak

33. Induvtive method is identified with

Correct : B. scientific activity

34. A single ------ is enough to prove the inductive conclusion false.

Correct : C. counter-example

35. An advantage of inductive reasoning is

Correct : D. to frame future expectations.

36. Truth or Falsehood may be predicated of --------.

Correct : C. propositions

37. Validity or Invalidity may be predicated of ---------.

Correct : A. deductive arguments

38. The falsehood of a valid deductive argument’s conclusion guarantees that

Correct : B. atleast one of the premise is false

39. If it is possible for the premises of a deductive argument to be true and its conclusion to be false, that argument is

Correct : B. invalid

40. The claim of an inductive argument is that premises provide---------- for the conclusion.

Correct : D. some evidence

41. The following argument: Aristotle is human and mortal. Bacon is human and mortal. Castro is human and mortal. Descartes is human and mortal. Therefore all humans are mortal. is an example for --------- argument.

Correct : B. inductive

42. A valid deductive argument with true premises is called a ------ argument.

Correct : A. sound

43. A deductive argument is sound if and only if it is

Correct : A. valid and all its premises are true

44. Deduction and Induction are two main forms of---------.

Correct : C. reasoning

45. Deductive logic is also known as

Correct : C. formal logic

46. Inductive logic is also known as

Correct : C. material logic

47. The following argument: “ All mammals have wings. All reptiles are mammals. Therefore all reptiles have wings ”. Is----------.

Correct : D. valid.

48. Deduction and Induction are two types of----------.

Correct : A. arguments

49. A term can have -------- in its proposition.

Correct : D. only one meaning.

50. Words and names can become terms only if they are used in---------.

Correct : B. propostion

51. Both premises and conclusion of an argument are _______.

Correct : B. propositions

52. The two kinds of propositions are

Correct : C. categorical – conditional

53. The sign of relation between two terms is called a ________.

Correct : D. copula

54. Denotation is the same as _______.

Correct : A. extension

55. The function of suggesting qualities possessed by the objects is known as _______.

Correct : C. connoting

56. Connotation is the same as _______.

Correct : A. intension

57. In a categorical proposition the predicate is either affirmed or denied _______ of the subject

Correct : A. unconditionally

58. The proposition “if you work hard you will succeed “ – is an example for _______ proposition.

Correct : B. conditional

59. A disjunctive proposition is ________ proposition.

Correct : A. conditional

60. Affirmative or Negative is the classification of propositions on the basis of _________.

Correct : B. quality

61. Universal or Particular is the classification of the propositions on the basis of _______.

Correct : A. quantity

62. The quantity of a proposition is determined by the __________ of the subject.

Correct : B. extension

63. A proposition in which the predicate refers to all individual objects denoted by the subject is called

Correct : D. universal.

64. A proposition in which the predicate belongs only to a part of the denotation of the subject is called

Correct : A. particular

65. Individual propositions are to be regarded as___________.

Correct : A. universal

66. That proposition in which the quantity of the subject is not stated clearly but left vague is called______________.

Correct : C. indefinite

67. The proposition: “ All men are mortal.”- is an example for____________ proposition.

Correct : A. universal affirmative

68. The proposition: “ No men are perfect”.- is an example for __________ proposition.

Correct : B. universal negative

69. The proposition: “ Some flowers are red “ – is an example for _________ proposition.

Correct : C. particular affirmative

70. The proposition: “ Some Indians are not religious”- is an example for ______ proposition.

Correct : D. particular negative.

71. When a term is used in its entire extent referring to to the objects denoted by the term, that term is said to be___________.

Correct : C. distributed

72. When a term refers only to part the class of things denoted by the term, that term is said to be____________.

Correct : A. undistributed

73. Universal affirmative proposition distributes _________.

Correct : A. subject

74. Universal negative proposition distributes___________.

Correct : C. both subject and predicate

75. Particular affirmative proposition distributes _________.

Correct : D. neither subject nor predicate.

76. Particular negative proposition distributes __________.

Correct : B. predicate

77. The process of passing directly from a single proposition to a conclusion is

Correct : A. immediate inference

78. _____________ asserts the agreement or disagreement of a subject and predicate after having compared each with middle term.

Correct : B. mediate inference

79. Opposition is a ___________ inference.

Correct : D. immediate.

80. Eduction is a ___________ inference.

Correct : D. immediate.

81. __________ is the relation between two universal propositions having the same subject but differing in quality only.

Correct : A. contrary opposition

82. ___________ is the relation between two propositions having the same subject but differing in both quality and quantity.

Correct : B. contradictory opposition

83. The relation between two particular propositions having the same subject and predicate but differing in quality is_________opposition.

Correct : D. sub-contrary.

84. ______ opposition is the relation between two propositions having the same subject and predicate but differing in quantity only.

Correct : C. subaltern

85. If one of the contraries is true the truth-value of the other is

Correct : B. false

86. If one of the contraries is false the truth-value of the other is

Correct : C. doubtful

87. If one of the contradictories is true the other must be _______.

Correct : B. false

88. Contrary propositions cannot both be ________.

Correct : A. true

89. Of two sub-contraries if one is false the other is necessarily______

Correct : A. true

90. Of two sub-contraries if one is true the other is ________.

Correct : C. doubtful

91. Between subalterns if the universal is true the particular is

Correct : A. true

92. If the particular proposition of a subaltern relation is false its corresponding universal proposition will be_______.

Correct : B. false

93. If the particular proposition of a subaltern relation is true, the truth-value of the universal proposition is

Correct : D. doubtful.

94. The proposition: “Socrates is wise”, is an example for ___________ proposition.

Correct : B. singular

95. The quantity of the proposition is determined by the extension of the ______.

Correct : A. subject

96. In a conditional proposition the part which expresses the condition by ‘if’ or its equvalent is

Correct : A. antecedent

97. ________ is a unit of reasoning in logic.

Correct : C. proposition

98. Euler’s circles are diagrams representing ________ of the terms.

Correct : A. distribution

99. A syllogism is a form of ___________ inference.

Correct : A. mediate

100. A syllogism is form of mediate _________ inference.

Correct : A. deductive