Question # 1

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a >b ⇒a +c >b +c is known as

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Trichotomy property

Additive property of inequality

Transitive property

Multiplicative property

In (x +iy) y is called as

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Imaginary part

Complex number

Real part

None of above

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A rational number

A natural number

An irrational number

An integer

The set { 1 , -1} is closed w.r.t.

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Addition

Multiplications

Subtraction

None of these

√11 is

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an irrational number

Rational number

odd number

Negative number

Every prime number is also

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Rational number

Even number

Irrational number

Multiple of two numbers

π is the ration of

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Area of a circle to its diameter

Area of a circle to its radius

Circumference of a circle to its diameter

Circumference of circle to its radius

The multiplicative inverse of 1 is

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1

-1

0

Does not exist

Multiplicative inverse of "1" is

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0

±1

1

{0,1}

if Z1 = 1+i, Z2= 2+3i, then |Z2 -Z1| =

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√3 i

√7

-2-i

√5

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If Z₁= 1 + i, Z₂= 2+3i, then |Z₂- Z₁| = ?

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N

r

2r

π

6 is

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A prime integer

An irrational number

A rational number

An odd integer

3.5+5.4=5.4+3.5 =8.9 this property of addition is called

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additive identity

assoclative property

commulative property

closure property

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Any whole number can be written as a product of factors which are

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Even number

Odd numbers

Prime number

Rational number

If Z₁= 1 + i, Z₂= 2+3i, then |Z₁- Z₂| = ?

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The square root of every incomplete square is an

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Rational numbers

Even numbers

odd numbers

Irrational numbers

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1

-1

QUQ, =

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N

R

W

Z

If z₁ = 1 + 2i, z₂ = 3 + 4i then

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z₁ > z₂

z₁ = z₂

z₁ < z₂

None of these

In R the number of identity elements w.r.t.'.' is

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One

Two

Three

Four

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15

15 i

-15 i

-15

Associative law of multiplication

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ab = ba

a(bc) = (ab) c

a(b+c) = ab + ac

(a + b)c = ac + bc

202.04 is an example of

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Recurring decimals

Non-recurring decimals

Terminating decimals

None of these

The set of rationals numbers between 0 and I is

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Finite

Null set

Infinite

None of these

If ∀a,b ε R,then a +b ε R is a property

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Closure law of addition

Associative law of addition

Additive inverse

Additive identity

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Geometrically the modulus of a complex number represents its distance from the

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Point (1,0)

Point (0,1)

Point (1,1)

Point (0,0)

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Mathematics ECAT Pre Engineering Chapter 1 Number System Online Test MCQs With Answers

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