1. |
## The objects constituting a set are called |

A. | estimates |

B. | elements |

C. | set objects |

D. | none of these |

Answer» B. elements |

2. |
## Who is regarded as the founder of theory of sets? |

A. | adam smith |

B. | karl frederich gauss |

C. | george cantor |

D. | euller |

Answer» C. george cantor |

3. |
## A collection of well-defined distinct objects thought of as a whole is called |

A. | union |

B. | derivative |

C. | set |

D. | integral |

Answer» C. set |

4. |
## “No two elements of a set are identical”. This statement is |

A. | always true |

B. | sometimes true |

C. | not true |

D. | all of the above is possible |

Answer» A. always true |

5. |
## A set containing no element is called |

A. | null set |

B. | empty set |

C. | void set |

D. | all the above |

Answer» D. all the above |

6. |
## A set containing only one element is termed as |

A. | unit set |

B. | singleton set |

C. | both (a) and (b) |

D. | none of these |

Answer» C. both (a) and (b) |

7. |
## A set of totality of elements from all possible sets is called |

A. | union set |

B. | intersection set |

C. | universal set |

D. | unit set |

Answer» C. universal set |

8. |
## If two sets contain the same distinct elements, then they are called |

A. | equal sets |

B. | unequal sets |

C. | equivalent sets |

D. | all the above |

Answer» A. equal sets |

9. |
## If two sets contain same number of distinct elements but not the same elements are called |

A. | equal sets |

B. | unequal sets |

C. | equivalent sets |

D. | all the above |

Answer» C. equivalent sets |

10. |
## Sets and set operations can be represented by drawing diagrams termed as |

A. | pie diagrams |

B. | venn diagrams |

C. | histogram |

D. | ogives |

Answer» B. venn diagrams |

11. |
## If every element of a set B is also an element of A, then |

A. | a is a subset of b |

B. | b is a subset of a |

C. | a is not a subset of b |

D. | b is not a subset of a |

Answer» B. b is a subset of a |

12. |
## In Venn diagram, the universal set is represented by |

A. | points within a rectangle |

B. | points within a circle |

C. | both (a) and (b) |

D. | none of these |

Answer» A. points within a rectangle |

13. |
## “Null set is a proper subset of all the non-null sets”. This statement is |

A. | always true |

B. | sometimes true |

C. | never true |

D. | true subject to some conditions |

Answer» A. always true |

14. |
## Union of A with A, that is, A U A = |

A. | complement of a |

B. | a itself |

C. | cannot be determined |

D. | none of these |

Answer» B. a itself |

15. |
## Union of A and the universal set is |

A. | a |

B. | a’ |

C. | universal set |

D. | none of these |

Answer» C. universal set |

16. |
## Union of A and a null set is equal to |

A. | intersection of a and null set |

B. | null set |

C. | both (a) and (b) |

D. | a |

Answer» D. a |

17. |
## Union of A with B is same as union of B with A, that is, A U B = B U A is termed as |

A. | associative law of union |

B. | cumulative law of union |

C. | reflective law |

D. | all the above |

Answer» B. cumulative law of union |

18. |
## The associative law of union is |

A. | a u (b u c) = (a u b) u c = a u b u c |

B. | a u b = b u a |

C. | a u b = a u c |

D. | b u c = b u a |

Answer» A. a u (b u c) = (a u b) u c = a u b u c |

19. |
## If B is a subset of A, then A U B = |

A. | b |

B. | a |

C. | intersection of a and b |

D. | none of these |

Answer» B. a |

20. |
## If a set C contain all the elements which are present in both the sets A and B, then set C is called |

A. | union of a and b |

B. | intersection of a and b |

C. | complement of a |

D. | complement of b |

Answer» B. intersection of a and b |

21. |
## If two sets do not have any common element, then they are called |

A. | complement sets |

B. | joint sets |

C. | disjoint sets |

D. | none of these |

Answer» C. disjoint sets |

22. |
## A set containing all the elements of the universal set except those of set A is called |

A. | complement of set a |

B. | complement of universal set |

C. | union of a and universal set |

D. | universal set itself |

Answer» A. complement of set a |

23. |
## The set of all elements belonging to A but not to B is |

A. | b – a |

B. | a – b |

C. | a’ |

D. | b’ |

Answer» B. a – b |

24. |
## The set of all subsets of a set A is called |

A. | power set of a |

B. | complement of a |

C. | both (a) and (b) |

D. | none of these |

Answer» A. power set of a |

25. |
## Any number raise to the power zero is always equal to |

A. | zero |

B. | one |

C. | two |

D. | that number itself |

Answer» B. one |

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