90+ Logic and Scientific Method Solved MCQs

1.

is defined as the science of reasoning.

A. ethics
B. aesthetics
C. logic
D. psychology
Answer» C. logic
2.

Logic is a science.

A. normative
B. positive
C. physical
D. natural
Answer» A. normative
3.

Logic aims precisely at the search for .

A. beauty
B. truth
C. good
D. none of these
Answer» B. truth
4.

is a normative study.

A. logic
B. aesthetics
C. ethics
D. all these
Answer» D. all these
5.

is not a positive science.

A. biology
B. physics
C. sociology
D. logic
Answer» D. logic
6.

Logic deals with the operations of human mind in its search for _.

A. beauty
B. conduct
C. truth
D. all these
Answer» C. truth
7.

is the verbal expression of judgment.

A. logic
B. proposition
C. truth
D. none of these
Answer» B. proposition
8.

A is that which serves either as the subject or as the predicate in a proposition.

A. term
B. word
C. argument
D. sentence
Answer» A. term
9.

A valid deductive argument with true premise and conclusion is called a argument.

A. sound
B. true
C. false
D. none of these
Answer» A. sound
10.

A/an contains premises and conclusion.

A. proposition
B. argument
C. sentence
D. term
Answer» B. argument
11.

Positive sciences are .

A. descriptive
B. prescriptive
C. normative
D. all these
Answer» A. descriptive
12.

Normative sciences are .

A. conservative
B. prescriptive
C. descriptive
D. all these
Answer» B. prescriptive
13.

is the process of passing from known judgments to a new judgment.

A. inference
B. imagination
C. argument
D. none of these
Answer» A. inference
14.

Identify the odd one.

A. logic
B. physics
C. ethics
D. aesthetics
Answer» B. physics
15.

Identify the wrong combination.

A. logic and reasoning
B. ethics and good
C. logic and imagination
D. logic and inference
Answer» C. logic and imagination
16.

Logic is related to as Ethics is to good.

A. beauty
B. truth
C. proposition
D. none of these
Answer» B. truth
17.

Aesthetics is related to as Logic is to truth.

A. right
B. reasoning
C. inspiration
D. beauty
Answer» D. beauty
18.

Logic prescribes the means to distinguish between correct and incorrect .

A. moral choice
B. norms of beauty
C. reasoning
D. sentence
Answer» C. reasoning
19.

Deductive logic is concerned with the of arguments.

A. form
B. content
C. material truth
D. none of these
Answer» A. form
20.

Deductive logic is not concerned with the of arguments.

A. form
B. content
C. premises
D. none of these
Answer» B. content
21.

In argument, the conclusion cannot be wider than the premises.

A. deductive
B. inductive
C. both (a) and (b)
D. neither (a) nor (b)
Answer» A. deductive
22.

In deduction, the conclusion is .

A. probable
B. ambiguous
C. necessary
D. all these
Answer» C. necessary
23.

In deduction, the conclusion is related to premises by .

A. probability
B. ambiguity
C. chance
D. implication
Answer» D. implication
24.

In , the conclusion necessarily follows from the given premises.

A. proposition
B. induction
C. deduction
D. none of these
Answer» C. deduction
25.

In , the conclusion is always probable.

A. induction
B. deduction
C. formal logic
D. none of these
Answer» A. induction
26.

is to argument as truth is to proposition.

A. inference
B. deduction
C. induction
D. validity
Answer» D. validity
27.

A proposition is true or false as a/an is valid or invalid.

A. induction
B. argument
C. premise
D. term
Answer» B. argument
28.

A logical sentence is called .

A. proposition
B. argument
C. premise
D. explanation
Answer» A. proposition
29.

Learning is a way to improve reasoning power.

A. athletics
B. music
C. logic
D. cookery
Answer» C. logic
30.

refers to the process of drawing conclusion from observed instances.

A. induction
B. deduction
C. conversion
D. obversion
Answer» A. induction
31.

Logic is indispensable for . a) Science b) Law c) Criminology d) all these 32. Induction and deduction are processes of reasoning.

A. contradictory
B. complementary
C. opposite
D. competing
Answer» D. competing
32.

‘What ought to be’ is the concern of sciences.

A. positive
B. social
C. physical
D. normative
Answer» D. normative
33.

shares the same area of study with logic.

A. sociology
B. psychology
C. mathematics
D. none of these
Answer» B. psychology
34.

Logic is to as grammar is to language.

A. religion
B. science
C. society
D. politics
Answer» B. science
35.

Logical sentence is called __________.

A. proposition
B. proprium
C. preposition
D. idiom
Answer» A. proposition
36.

The connecting link between the terms in a proposition is called __________.

A. sentence
B. copula
C. verb
D. name
Answer» B. copula
37.

What is said about the subject term in a proposition is __________.

A. copula
B. subject
C. predicate
D. none of these
Answer» C. predicate
38.

_____________ of a proposition means whether the predicate is affirmed or denied of the subject.

A. import
B. intension
C. quantity
D. quality
Answer» D. quality
39.

_________ propositions refer to the whole of the subject class.

A. disjunctive
B. categorical
C. universal
D. particular
Answer» C. universal
40.

Identify the odd one.

A. categorical
B. contradictory
C. hypothetical
D. disjunctive
Answer» B. contradictory
41.

Categorical propositions are classified into__________.

A. three
B. four
C. two
D. five
Answer» B. four
42.

The universal affirmative proposition is symbolized as ___________.

A. sip
B. sep
C. sop
D. sap
Answer» D. sap
43.

On the basis of quality, propositions are classified into _________.

A. four
B. three
C. two
D. one
Answer» C. two
44.

“Dog is a domestic animal” is a/an __________affirmative proposition.

A. particular
B. universal
C. individual
D. none of these
Answer» B. universal
45.

When the predicate is affirmed of the whole of the subject class, the proposition is symbolized as _________.

A. i
B. o
C. a
D. e
Answer» C. a
46.

Both the subject and the predicate are distributed in _____________proposition.

A. a
B. e
C. i
D. o
Answer» B. e
47.

Neither the subject nor the predicate is distributed in ____________Proposition.

A. a
B. i
C. e
D. o
Answer» B. i
48.

The predicate term alone is distributed in ___________proposition.

A. e
B. i
C. a
D. o
Answer» D. o
49.

Only the subject term is distributed in_____________ proposition.

A. o
B. i
C. e
D. a
Answer» D. a
50.

___________ is the basis of classification of immediate and mediate inference.

A. length of premise
B. meaning of premise
C. number of premise
D. all these
Answer» C. number of premise
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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