Question # 1

The set of the first elements of the ordered pairs forming a relation is called its

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Function on B

Range

Domain

A into B

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Conclusion

Implication

Antecedent

Hypothesis

The set {1, -1, 1, -1}, form a group under

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Addition

Multiplication

Subtraction

None

The set {x +iy / x, y ∈ Q} forms a group under the binary operation of

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Addition

Multiplication

Division

Both addition and multiplication

Power set of X i.e P(X) _______ under the binary operation of union U

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Forms a group

Does not form a group

Has no identity element

Infinite set although X is infinite

The set {-1,1} is closed under the binary operation of

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Addition

Multiplication

Subtraction

Division

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square root function

identity function

linear function

quadratic function

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A = C

A = B

B = C

None of these

A disjunction of two statement p and q is true

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p is false

q is false

Both p and q are false

One of p and q is true

The set of natural numbers is a subset of

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{1, 2, 3, .... 100}

The set of whole numbers

{2, 4, 6, 8, .....}

None of these

Multiplicative inverse of "1" is

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0

-1

1

{0, 1}

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

In a school, there are 150 students. Out of these 80 students enrolled for mathematics class, 50 enrolled for English class, and 60 enrolled for Physics class. The students enrolled for English cannot any other class, but the students of mathematics and Physics can take two courses at a time. Find the number of students who have taken both physics and mathematics

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40

30

50

20

A conditional "if p then q" is denoted by

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{0} is a

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Empty set

Singleton set

Zero set

Null Set

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Decimal part of irrational number is

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Terminating

Repeating only

Neither repeating nor terminating

Repeating and terminating

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Addition

Multiplication

Division

Both addition and multiplication

The function whose range consists of just one element is called

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One-One Function

Identity Function

Onto Function

Constant Function

The set of integer is

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Finite group

A group w.r.t addition

A group w.r.t multiplication

Not a group

If B⊆ A, then complement of B in A is = -----------------------

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A-B

A∩B

B-A

A∪B

Let A and B be two sets. If every element of A is also an element of B then

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The multiplicative inverse of -1 in the set {1-,1} is

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1

-1

±1

0

Does not exist

The set of integer is

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Finite group

A group w.r.t addition

A group w.r.t multiplication

Not a group

The set { {a, b} } is

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Infinite set

Singleton set

Two points set

Empty set

The statement that a group can have more than one identity elements is

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True

False

Fallacious

Some times true

The set (Z,+) forms a group

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Forms a group w.r.t addition

Non commutative group w.r.t multiplication

Forms a group w.r.t multiplication

Doesn't form a group

Φset is the ______ of all sets?

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Subset

Union

Universal

Intersection

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ECAT Pre General Science Mathematics Chapter 2 Set, Functions and Groups Online Test MCQs With Answers

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