Logical Reasoning
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Question 1 |
The argument which claims that its conclusion is conclusively supported by its premises is called [21 June 2019, 2nd Shift]
A | Analogical Argument |
B | Inductive Argument |
C | Demonstrative Argument |
D | Deductive Argument |
Question 1 Explanation:
In deductive arguments conclusions are certain followed from its premises are true.
Question 2 |
'All Children are not greedy' is an example of which proposition? [21 June 2019,2nd Shift]
A | Universal Affirmative |
B | Universal Negative |
C | Particular Affirmative |
D | Particular Negative |
Question 2 Explanation:
All S are not P is the obverse of "Some S are not P" which is Particular Negative.
Question 3 |
Identify the reasoning in the following statements: "A pilot without flights plans is like an artist without paints". [20 June 2019, 2nd Shift]
A | Analogical |
B | Deductive |
C | Inductive |
D | Hypothetical |
Question 3 Explanation:
Analogical reasoning: Accepted similarities between two system to support the conclusion that some further similarity exists.
Question 4 |
"All Students cleared their examination" and " Few students did not clear their examination". This is an instance of [2 December 2019, 2nd Shift]
A | Contradictories |
B | Superaltern |
C | Subaltern |
D | Contraries |
Question 4 Explanation:
Contradictories: Lies between "All" and "Some not".
Question 5 |
According to traditional square of opposition, if two propositions are so related that they cannot both be false, although they may both be true, They are called: [3 December 2019, 2nd Shift]
A | Subaltern |
B | Subcontraries |
C | Contradictories |
D | Contraries |
Question 5 Explanation:
Subcontraries: Two proposition are subcontraries, if they cannot both be false but can both true.
Question 6 |
Consider the following argument: 4 Dec 2019, 1st Shift]
Statements:
Some Chairs are curtains
All curtains are bedsheets
Conclusion: Some chairs are bedsheets.
What is the Mood of the above proposition?
A | IAI |
B | IAA |
C | IIA |
D | AII |
Question 6 Explanation:
Mood
All - A
No - E
Some - I
Some Not - O
Question 7 |
Given below are two premises with four conclusion drawn from them. Which of the following is valid conclusion drawn from the premises? [3 December 2019, 2nd Shift]
Premises:
(i) All diaries are copies
(ii) No copy is book
Conclusions:
(A) Some diaries are books
(B) Some books are copies
(C) No book is copy
(D) No diary is book
Choose the correct option:
Premises:
(i) All diaries are copies
(ii) No copy is book
Conclusions:
(A) Some diaries are books
(B) Some books are copies
(C) No book is copy
(D) No diary is book
Choose the correct option:
A | (B) and (D) |
B | (C) and (D) |
C | (B) and (C) |
D | (A) and (D) |
Question 8 |
In the statement "No dogs are reptiles", which terms are distributed? [6 December 2019, 2nd Shift]
A | Only subject term is distributed |
B | Only predicate term is distributed |
C | Both subject and predicate term is distributed |
D | Neither subject nor predicate term is distributed |
Question 8 Explanation:
Universal Negative: Both subject and predicate term is distributed.
Question 9 |
When subject and predicate of both the premises is same but they differ in quality as well as quantity, it is known as [25 June 2019, 2nd Shift]
A | Superaltern |
B | Contraries |
C | Contradictories |
D | Subaltern |
Question 9 Explanation:
Contradictory: They have same subjects and predicates but differ in both quality and quantity.
Question 10 |
The proposition "No historians are non - mathematician" is equivalent to which of the following proposition [24 June 2019,1st Shift]
A | All historians are mathematicians |
B | No historians are mathematicians |
C | Some historians are mathematicians |
D | Some historians are not mathematics |
Question 10 Explanation:
The propositions " No historian are non - mathematician" is equivalent to "All historian are mathematician".
Question 11 |
If the preposition 'domestic animals are hardly ferocious' is taken to be false, which of the following preposition/prepositions can be claimed to be certainly true? Select the correct code: [July 2018]
Prepositions
(A) All domestic animals are ferocious
(B) Most of the domestic animals are ferocious
(C) No domestic animal is ferocious
(D) Some domestic animals are non-ferocious
A | (A) and (B) |
B | (A) Only |
C | (C) and (D) |
D | (B) only |
Question 12 |
Which of the following is converse of "Some S is P"? [4 Dec 2019, 1 Shift]
A | Some S is not P |
B | Some P is not S |
C | Some P is S |
D | No P is S |
Question 13 |
Given below are four statements. Among them two are related in such a way that they can both be true, but they cannot be false. Select the code that indicates these two statements: [November 2017]
statements:
(A) Honest people never suffer.
(B) Almost all honest people do suffer.
(C) Honest people hardly suffer.
(D) Each and every Honest person suffers.
A | (A) and (B) |
B | (A) and (C) |
C | (A) and (D) |
D | (B) and (C) |
Question 14 |
Which one of the following statements is not correct in the context of Venn diagram method? : [July 2018]
A | It is a method of testing the validity of arguments |
B | It represents both the premises of a syllogism in one diagram |
C | It requires two overlapping circles for the two premises of a standard-form categorical syllogism |
D | It can be used to represent classes as well as propositions |
Question 15 |
Inductive reasoning is grounded on: June 2015, July 2018
A | Integrity of nature |
B | Unity of nature |
C | Uniformity of nature |
D | Harmony of nature |
Question 15 Explanation:
Uniformity of nature is a presupposition in inductive reasoning.
Question 16 |
The reasoning which would be helpful in finding new knowledge of facts about the world is [26th June 2019, 2nd Shift]
A | Speculative |
B | Inductive |
C | Deductive |
D | Analogical |
Question 16 Explanation:
Inductive reasoning goes from the specific to the general. We make many specific observations, discern a pattern from them, make a generalization, and infer an explanation or a theory.
Question 17 |
If the statement "Some men are honest" is false, which among the following statements will be true. June 2013
Choose the correct code given below:
(i) All men are honest
(ii) No men are honest
(iii) Some men are not honest
(iv) All men are dishonest
Choose the correct code given below:
(i) All men are honest
(ii) No men are honest
(iii) Some men are not honest
(iv) All men are dishonest
A | (i), (ii) and (iii) |
B | (ii), (iii) and (iv) |
C | (i), (iii) and (iv) |
D | (i), (ii) and (iv) |
Question 18 |
The product of any three consecutive integers is divisible by 6. Therefore, 3 x 4 x 5 (=60) is divisible by 6? Which type of reasoning is embedded here? [2nd December 2019, 1st Shift]
A | Deductive reasoning |
B | inductive reasoning |
C | Non - verbal reasoning |
D | Abductive reasoning |
Question 18 Explanation:
Deductive reasoning is a process of reaching a necessary conclusion from given facts or hypothesis. Out of three consecutive numbers, one number is atleast even number and atleast one number is divisible by 3. Now any number that are divisible by 2 and 3, must be divisible by 6.
Question 19 |
Identify the reasoning in the argument 'Pre - active stage of classroom teaching is important just as pre - learning preparation stage of communication". [26th June 2019, 1st Shift]
A | Hypothetical |
B | Deductive |
C | Inductive |
D | Analogical |
Question 19 Explanation:
Analogical reasoning accepted similarities between two systems to support the conclusion that some further similarity exist. In the given argument, the term "Just as" clearly shows the comparison between the pre - active stage of classroom teaching and pre - learning preparation stage of communication.
Question 20 |
Which one of the following propositions is a contrary to "All Poets are dreamers"? [4th December 2019, 2nd Shift]
A | Some poets are dreamers |
B | Some poets are not dreamers |
C | No poets are dreamers |
D | No dreamers are poets |
Question 21 |
Which of the following refers to an attribute of every categorical proposition which os determined by whether the preposition affirms or denies class inclusion? [2nd December 2019, 1st Shift]
A | Quality |
B | Quantity |
C | Distribution |
D | Comparison |
Question 22 |
Consider the following argument: [13/11/2020, Afternoon Shift]
Major Premise: No squares are rectangles
Minor Premise: All rectangles are circles
Conclusion: Some circles are not squares.
What is the Mood of the above proposition?
A | AIE |
B | AEO |
C | EAO |
D | EAI |
Question 23 |
Consider the following propositions [13/11/2020, Afternoon Shift]
No television is a computer.
Some television are not computer.
According to the square of opposition, the above opposition is called as
No television is a computer.
Some television are not computer.
According to the square of opposition, the above opposition is called as
A | Subalternation |
B | Subcontrary |
C | Contradiction |
D | Contrary |
Question 24 |
'Some animals are not harmful' is an example of which of the following types of propositions? [13/11/2020, Afternoon Shift]
A | Particular affirmative |
B | Particular negative |
C | Universal negative |
D | Universal affirmative |
Question 25 |
The propositions 'All Indians eat rice' and 'Some Indians eat rice" are an example of [13/11/2020, Morning Shift]
A | Subalternation |
B | Contraries |
C | Contradiction |
D | Subcontraries |
Question 26 |
'Some teachers are not sincere' is an example of which category of proposition? [12/11/2020, Afternoon Shift]
A | Universal negative |
B | Universal affirmative |
C | Particular affirmative |
D | Particular negative |
Question 27 |
Which of the following is correct about the sentence. " Some men are not married"? [12/11/2020, Afternoon Shift]
A | The subject term is distributed |
B | The predicate term is distributed |
C | Both subject and predicate term is distributed |
D | Neither subject nor predicate term is distributed |
Question 28 |
Which sentence cannot fit into AEIO framework? [12/11/2020, Morning Shift]
A | No salt has iodine |
B | The salt on the table has iodine |
C | All salt has iodine |
D | Some salt has iodine |
Question 29 |
If some pens are pencils but no pencil is sharpener then [11/11/2020, Afternoon Shift]
A. All pencils are pens.
B. Some sharpeners are pencils
C. Some pens are not sharpener
D. Some pencils are not pens
Choose the correct answer from the option given below
A | (A) and (C) only |
B | (B) and (C) only |
C | (A) and (D) only |
D | (B) and (D) only |
Question 30 |
In Universal negative proposition. How are the term are distributed? [11/11/2020, Morning Shift]
A | Subject is distributed, predicate is undistributed |
B | Subject is undistributed, predicate is distributed |
C | Both subject and predicate is distributed |
D | Neither subject nor predicate is distributed |
Question 31 |
Given below are two proposition [5/11/2020, Afternoon Shift]
All philosophers are fallible.
Illegal is not fallible.
In the classical square of opposition, which one of the following is the correct option for this?
A | Contrary |
B | Subcontrary |
C | Subaltern |
D | Contradictory |
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