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90+ Logic and Scientific Method Solved MCQs

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Bachelor of Arts in Philosophy (BA Philosophy) .

51.

In ___________ inference there is one and only one premise from which the conclusion is drawn.

A. mediate
B. immediate
C. syllogistic
D. mixed
Answer» B. immediate
52.

Among the following _________ is considered as an immediate inference.

A. opposition of proposition
B. dilemma
C. disjunctive syllogism
D. syllogism
Answer» A. opposition of proposition
53.

In _________, the meaning of the premise and the conclusion is equivalent.

A. opposition
B. syllogism
C. eduction
D. deduction
Answer» C. eduction
54.

In eduction, the difference between the premise and conclusion is only of _________.

A. form
B. meaning
C. quality
D. quantity
Answer» A. form
55.

In Square of Opposition, the premise and conclusion differ in__________.

A. form only
B. meaning only
C. quantity only
D. both in form and meaning
Answer» D. both in form and meaning
56.

The diagram of square that represents the relationship between the four categorical propositions is called the _______.

A. square of opposition
B. square of relations
C. square of inference
D. none of these
Answer» A. square of opposition
57.

Inference through opposition is possible only among the propositions having the _______.

A. different subject and predicate
B. same subject and different predicate
C. same subject and predicate
D. different subject and same predicate
Answer» C. same subject and predicate
58.

‘A’ proposition and ‘E’ proposition are related to each other by the__________ relation.

A. sub- contrary
B. contradictory
C. subaltern
D. contrary
Answer» D. contrary
59.

Universal Affirmative proposition is related to Particular Negative proposition by ___________ relation.

A. sub- contrary
B. contradictory
C. subaltern
D. contrary
Answer» B. contradictory
60.

‘I’ and ‘O’ propositions _________.

A. can be false together
B. cannot both be true
C. cannot both be false
D. none of these
Answer» C. cannot both be false
61.

Subaltern relationship shows that if ‘A’ is true, then ‘I’ is__________.

A. undetermined
B. false
C. necessarily true
D. necessarily false
Answer» C. necessarily true
62.

All S is P is converted as__________.

A. all p is s
B. some p is s
C. no s is p
D. all p is not s
Answer» B. some p is s
63.

The inferred proposition in an obversion is called _________.

A. obvertend
B. invertend
C. obverse
D. converse
Answer» C. obverse
64.

___________ is not considered as an independent form of immediate inference.

A. conversion
B. obversion
C. inversion
D. contraposition
Answer» D. contraposition
65.

A ___________ is a form of mediate deductive inference in which the conclusion is drawn from two categorical propositions taken jointly.

A. categorical syllogism
B. hypothetical syllogism
C. disjunctive syllogism
D. all these
Answer» A. categorical syllogism
66.

In a syllogism, the predicate of the conclusion is called the _________ term.

A. minor
B. major
C. middle
D. none of these
Answer» B. major
67.

In categorical syllogism, the common term, which occurs in both the premises, is __________.

A. major
B. minor
C. middle
D. none of these
Answer» C. middle
68.

In a disjunctive syllogism, conclusion is _________ type of proposition.

A. disjunctive,
B. hypothetical
C. categorical
D. none of these
Answer» C. categorical
69.

Every syllogism must contain only ________ terms.

A. 2
B. 3
C. 4
D. none of these
Answer» B. 3
70.

__________ is determined by the quality and quantity of the constituent propositions.

A. figure
B. mood
C. method
D. minor term
Answer» B. mood
71.

BARBARA is a valid mood of _________ figure.

A. 1st
B. 2nd
C. 3rd
D. 4th
Answer» A. 1st
72.

The major premise of a dilemma is __________ of two conditional statements.

A. conjunction
B. disjunction
C. implication
D. negation.
Answer» A. conjunction
73.

The minor premise of Modus Tollens is _________.

A. affirmation of antecedent
B. denial of antecedent
C. affirmation of consequent
D. denial of consequent
Answer» D. denial of consequent
74.

The conclusion of pure hypothetical syllogism is a/an ________ proposition.

A. hypothetical
B. categorical
C. disjunctive
D. equivalent
Answer» A. hypothetical
75.

The minor premise of a simple destructive dilemma is the ___________.

A. disjunction of the consequents
B. disjunction of the negation of consequents
C. disjunction of antecedents of major premise
D. disjunction of negation of antecedents
Answer» B. disjunction of the negation of consequents
76.

Identify the minor premise in the following: All men are mortal. All kings are men. ∴All kings are mortal.

A. all men are mortal
B. all kings are men
C. all kings are mortal
D. none of these
Answer» B. all kings are men
77.

In a syllogism, there are _________ propositions.

A. one
B. two
C. three
D. four
Answer» C. three
78.

___________ provides the ground for induction.

A. observation
B. opinion
C. . belief
D. intuition
Answer» A. observation
79.

__________ means a tentative explanation of a given phenomenon.

A. experiment
B. observation
C. hypothesis
D. none of these
Answer» C. hypothesis
80.

Generalization based on specific observations is a/an ___________ hypothesis.

A. null
B. inductive
C. deductive
D. all these
Answer» B. inductive
81.

___________ is a postulate of Induction.

A. causation
B. experiment
C. observation
D. opinion
Answer» A. causation
82.

Identify the odd one.

A. belief
B. hypothesis
C. opinion
D. intuition
Answer» B. hypothesis
83.

_________ is observation made under artificially set conditions.

A. mal-observation
B. non-observation
C. experiment
D. none of these
Answer» C. experiment
84.

Observation and experiment are ___________.

A. opposite
B. interdependent
C. simple
D. all these
Answer» B. interdependent
85.

__________ is the material ground of induction.

A. observation
B. experiment
C. both (a) and (b)
D. neither (a) nor (b)
Answer» C. both (a) and (b)
86.

From a good _________, we can make deductions.

A. intuition
B. belief
C. hypothesis
D. idea
Answer» C. hypothesis
87.

A _______ hypothesis is unverifiable.

A. good
B. barren
C. working
D. none of these
Answer» B. barren
88.

A good hypothesis is based on _________.

A. facts
B. imagination
C. guess
D. belief
Answer» A. facts
89.

The problem of induction is the _______ from the observed phenomena to an unobserved phenomenon.

A. intuition
B. guess
C. procedure
D. leap
Answer» D. leap
90.

“Nature is a systematic unity’. This is the postulate of _________.

A. intuition
B. induction
C. deduction
D. imagination
Answer» B. induction
91.

“Nothing is uncaused’ is a postulate of _________.

A. unity
B. intuition
C. deduction
D. induction
Answer» D. induction
92.

Observation is not ___________.

A. passive
B. active
C. neither (a) nor (b)
D. both (a) and (b)
Answer» A. passive
93.

Observation is always ___________.

A. passive
B. selective
C. false
D. correct
Answer» B. selective
94.

_________ gives us control over conditions.

A. observation
B. experiment
C. postulate
D. non-observation
Answer» B. experiment
95.

The one instance that may falsify a hypothesis is called _________ instance.

A. false
B. true
C. crucial
D. none of these
Answer» C. crucial

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