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Discrete Mathematics | Sets Introduction MCQs
Discrete Mathematics | Sets Introduction MCQs: This section contains multiple-choice questions and answers on Sets Introduction in Discrete Mathematics.
Submitted by Anushree Goswami, on October 30, 2022
1. As the name implies, a set is an orderly arrangement of ____ of similar types or classes.
- Arrays
- Objects
- Pointers
- Queues
Answer: B) Objects
Explanation:
As the name implies, a set is an orderly arrangement of objects of similar types or classes.
2. ____ of a set are the purposes of the set.
- Elements
- Members
- Both A and B
- None of the above
Answer: C) Both A and B
Explanation:
Elements or members of a set are the purposes of the set.
3. Which of the following can be an object?
- Numbers
- Alphabets
- Names
- All of the above
Answer: D) All of the above
Explanation:
Numbers, Alphabets, Names, etc. can be an object.
4. What is the symbol of 'Element of'?
- ∈
- ?
- $
- *
Answer: A) ∈
Explanation:
The symbol of 'Element of' is ∈.
5. In how many forms set form is represented?
- 1
- 2
- 3
- 4
Answer: B) 2
Explanation:
Set form can be represented in 2 forms.
6. Which of the following is a form in which a set is represented?
- Roster or tabular form
- Set Builder form
- Both A and B
- None of the above
Answer: C) Both A and B
Explanation:
The following is a form in which the set is represented -
- Roster or tabular form
- Set Builder form
7. All the elements of the set are listed within braces ___ and are separated by commas in this form of representation.
- [ ]
- { }
- ( )
- < >
Answer: A) [ ]
Explanation:
All the elements of the set are listed within braces [ ] and are separated by commas in this form of representation
8. Using the ____ of representation, all the elements of a set have the same properties.
- Builder form
- Set form
- Set builder form
- None of the above
Answer: C) Set builder form
Explanation:
Using this form of representation, all the elements of a set have the same properties.
9. What does x ∈ A mean in a set?
- x belongs to A
- x is an element of set A
- Both A and B
- None of the above
Answer: C) Both A and B
Explanation:
x ∈ A means x belongs to A or x is an element of set A.
10. What does x ∉ A mean in a set?
- x belongs to set A
- x does not belong to set A
- X is an element of set A
- None of the above
Answer: B) x does not belong to set A
Explanation:
x ∉ A means x does not belong to set A.
11. What does ∅ means in a set?
- Empty Set
- Universal Set
- Both a and b
- None of the above
Answer: A) Empty Set
Explanation:
∅ means Empty Set.
12. What does U mean in a set?
- Unique Set
- Universal Set
- Uniset
- None of the above
Answer: B) Universal Set
Explanation:
U means Universal Set.
13. What does I mean by a set?
- The set of all integers
- The set of all non-zero integers
- The set of all +ve integers
- None of the above
Answer: A) The set of all integers
Explanation:
I means the set of all integers.
14. What does Io mean in a set?
- The set of all integers.
- The set of all non-zero integers.
- The set of all +ve integers.
- None of the above
Answer: B) The set of all non-zero integers
Explanation:
Io means the set of all non-zero integers.
15. What does I+ mean in a set?
- The set of all integers.
- The set of all non-zero integers.
- The set of all +ve integers.
- None of the above
Answer: C) The set of all +ve integers
Explanation:
I+ means the set of all +ve integers.
16. What does C mean in a set?
- The set of all complex numbers.
- The set of all non-zero complex numbers.
- Both A and B
- None of the above
Answer: A) The set of all complex numbers
Explanation:
C means the set of all complex numbers in a set.
17. What does Co mean in a set?
- The set of all complex numbers.
- The set of all non-zero complex numbers.
- The set of all zero complex numbers.
- None of the above
Answer: B) The set of all non-zero complex numbers
Explanation:
Co means the set of all non-zero complex numbers.
18. What does Q mean in a set?
- The sets of rational numbers.
- The sets of non-zero rational numbers.
- The sets of +ve rational numbers.
- None of the above
Answer: A) The sets of rational numbers
Explanation:
Q means the sets of rational numbers.
19. What does Qo mean in a set?
- The sets of rational numbers.
- The sets of non-zero rational numbers.
- The sets of +ve rational numbers.
- None of the above
Answer: B) The sets of non-zero rational numbers
Explanation:
Qo means the sets of non-zero rational numbers.
20. What does Q+ mean in a set?
- The sets of rational numbers.
- The sets of non-zero rational numbers.
- The sets of +ve rational numbers.
- None of the above
Answer: C) The sets of +ve rational numbers
Explanation:
Q+ means the sets of +ve rational numbers.
21. What does R mean in a set?
- The set of the real number
- The set of the non-zero real number
- The set of +ve real number
- None of the above
Answer: A) The set of the real number
Explanation:
R means the set of real numbers.
22. What does Ro mean in a set?
- The set of the real number
- The set of the non-zero real number
- The set of +ve real number
- None of the above
Answer: B) The set of the non-zero real number
Explanation:
Co means the set of all non-zero complex numbers.
23. What does R+ mean in a set?
- The set of the real number
- The set of the non-zero real number
- The set of +ve real number
- None of the above
Answer: C) The set of +ve real number
Explanation:
R+ means the set of +ve real numbers.
24. It is called the ____ of the set when there are a total number of unique elements.
- Uniquely
- Cardinality
- Separately
- Specifically
Answer: B) Cardinality
Explanation:
It is called the cardinality of the set when there are a total number of unique elements.
25. In the countably infinite set, there is ____ cardinality.
- Only one
- Only two
- Only three
- Multiple
Answer: A) Only one
Explanation:
In the countably infinite set, there is only one cardinality.