1. 'All republics are grateful' and 'Some republics are not grateful' cannot both be true, and they cannot both be false. This is called as:

2. When subject and predicate of both the premises are the same but they differ in quality only, it is known as:

3. If two propositions having the same subject and predicate terms are such that one is the denial of the other, the relationship between them is called

4. 'No man are mortal' is contradictory of:

5. Just as melting ice – cubes do not cause a glass of water to overflow, melting sea – ice does not increase oceanic volume. What type of argument is it ?

6. The proposition 'All leaves are green' is equivalent to which of the following propositions?
(1) No leaves are green
(2) No leaves are non-green
(3) No leaves are in other colour than green
(4) No green is leaf Select the correct answer from the options given below:

7. A deductive argument is invalid if :

8. If two propositions having the same subject and predicate terms can both be true but can not both be false, the relation between those two propositions is called

9. Among the following propositions two are related in such a way that they cannot both be true but can both be false. Select the code that states those two propositions. Propositions:
(A) Every student is attentive.
(B) Some students are attentive.
(C) Students are never attentive.
(D) Some students are not attentive. Codes :

10. Considered the following statements with reference to categorical propositions:
(A) 'Some birds are mammals' is a particular affirmative proposition and it distributes subject term alone.
(B) 'Some birds are mammals' is a particular affirmative proposition and it distributes predicate term alone.
(C) 'Some birds are mammals' is a particular affirmative proposition and it distributes both subject and predicate terms.
(D) 'Some birds are mammals' is a particular affirmative proposition and it distributes neither subject term nor predicate term. Choose the correct option from below :

11. Which of the following set of statements represents acceptable propositions in respect of teaching-learning relationships ? Choose the correct code to indicate your answer.
(i) When students fail in a test, it is the teacher who fails. (ii) Every teaching must aim at ensuring learning. (iii) There can be teaching without learning taking place. (iv) There can be no learning without teaching.
(v) A teacher teaches but learns also. (vi) Real learning implies rote learning. Codes :

12. An informed fallacy in which the conclusion of an argument is stated or assumed in any one of the premises is known as:
(A) Begging the question
(B) Circular argument
(C) Ignoratio elenchi
(D) Petitio principii Choose the correct option from the following:

13. Which of the following is an example of circular argument?

14. Consider the following argument: Statements: Some chairs are curtains. All curtains are bedsheets. Conclusion: Some chairs are bedsheets. What is the Mood of the above proposition?

15. Whole class absents during your coaching period then what will be the most suitable solution of this situation?

16. When the conclusion of an argument follows from its premise/premises conclusively, the argument is called

17. Copula is that part of proposition which denotes the relationship between:

18. Consider the argument provided below: 'Sound is permanent because it is a product like the jar'. Identify the fallacy involved in the above argument on the basis of Indian logic from the options given below:

19. Identify the technical term used to describe body language from the following

20. Directions: There are two statements followed by two conclusions marked I and II. These conclusions are taken to be drawn on the basis of the given statements. Study the given statements and the conclusions drawn carefully and decide your answer. Statements: All carts are guns All guns are beds Conclusions: I All carts are beds II All beds are carts

21. Which one of the following statements is correct with reference to a deductive argument?

22. Given below are two premises with four conclusions drawn from them. Which of the following conclusions could be validly drawn from the premises? Premises:
(i) Some bags are tables (ii) All bags are chairs. Conclusions:
(1) Some tables are chairs.
(2) No chair is table.
(3) Some chairs are bags.
(4) Some bags are not tables. Select the correct answer from the options given below:

23. In the following context, which of the following principle is not different from belief?

24. Structure of logical argument is based on:

25. When the purpose of a definition is to explain the use or to eliminate ambiguity the definition is called :