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Mathematics ECAT Pre Engineering Chapter 2 Set, Functions and Groups Online Test MCQs With Answers
Question # 1
The set of all positive even integers is
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Not a group
A group w.r.t. subtraction
A group w.r.t. division
A group w.r.t. multiplication
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Question # 2
If we have a statement "if p then q" then q is called
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Conclusion
Implication
Unknown
Hypothesis
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Question # 3
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1
12
5
29
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Question # 4
Every subset of a finite set is
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Disjoint
Null
Finite
Infinite
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Question # 5
The multiplicative inverse of x such that x = 0 is
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-x
does not exist
1/x
0
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Question # 6
The number of subset of {0} is
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1
2
3
None
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Question # 7
Let A and B be two sets. If every element of A is also an element of B then
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Question # 8
Let A,B, and C be any sets such that A∪B = A∪C and A∩B = A∩C then
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A≠ C
B = C
A = B
A≠ B
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Question # 9
The set R is ........w.r.t subtraction
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Not a group
A group
No conclusion drawn
Non commutative group
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Question # 10
A function in which the second elements of the order pairs are distinct is called
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Onto function
One-one function
Identity function
Inverse function
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Question # 11
Which of the following has the same value as i113
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i
-1
-i
1
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Question # 12
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Question # 13
If A and B are two sets then any subset R of A x B is called
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relation on A
relation on B
relation from A to B
relation from B to A
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Question # 14
The set { {a,b} } is
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Infinite set
Singleton set
Two points set
Empty set
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Question # 15
If A is a set then any subset R of A x A is called
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relation on A
relation on B
relation from A to B
relation from B to A
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Question # 16
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A
B
U
None of these
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Question # 17
If the intersection of two sets is non-empty, but either is a subset of other are called
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Disjoint sets
Over lapping
Equal sets
None of these
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Question # 18
The number of proper subset of A ={a.b.c.d} is
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3
6
8
15
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Question # 19
For a set A, A∪Ac= ---------------------
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A
∅
Ac
U
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Question # 20
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4
3
2
1
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Question # 21
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Question # 22
The set of complex numbers forms a group under the binary operation of
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Addition
none of these
Division
Subtraction
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Question # 23
A function whose range is just one elements is called
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One-one function
Constant function
Onto function
Identity function
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Question # 24
(A ∩ B)c =
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A∩ B
(A ∪ B)c
Ac∪Bc
Φ
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Question # 25
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Question # 26
A - B = ______
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Question # 27
If n(A) = n then n(P(A)) is
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2n
n
2
n/2
2
n
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Question # 28
If B⊆ A, then complement of B in A is = -----------------------
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A-B
A∩B
B-A
A∪B
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Question # 29
Every set is an improper subset of
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Empty set
Equivalent set
Itself
Singleton set
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Question # 30
if A = (x/x€ Q˄ 0 < x < 1}, the A is
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Infinite set
Finite set
Set of rational numbers
Set of real numbers
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Question # 31
If T = {2,4,6,8,10,12}, then
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T = (First six natural numbers)
T = (First six odd numbers)
T = (First six real numbers)
T = ( First six even numbers)
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