More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
ECAT Pre General Science Mathematics Chapter 1 Number System Online Test MCQs With Answers
Question # 1
(√3+√5)+√7 = √3 +(√5 +√7) property used in above is
Choose an answer
Commutative property of addition
Closure property of addition
Additive inverse
Associative property w.r.t to adition
Previous
Skip
Next
Question # 2
Choose an answer
Rational
Irrational
Even
Odd
Previous
Skip
Next
Question # 3
∀a,b, c ε R ac = bc ⇒ a = b, c ≠ 0 is a
Choose an answer
Symmetric property
Cancellation property w.r.t multiplication
Reflexive property
Transitive property
Previous
Skip
Next
Question # 4
Choose an answer
Previous
Skip
Next
Question # 5
In (x + iy) x is the known as
Choose an answer
Imaginary part of complex number
Real part of complex number
Complex number
None of above
Previous
Skip
Next
Question # 6
Choose an answer
Multiplication property
Additive property
Trichotomy property
Transitive property of inequality
Previous
Skip
Next
Question # 7
If z = (x,y) , then z ̅ =
Choose an answer
(-x,y)
(x,-y)
(-x, -y)
None of these
Previous
Skip
Next
Question # 8
Choose an answer
Previous
Skip
Next
Question # 9
Choose an answer
Principle of equality of fractions
Rule for product of fractions
Golden rule for fractions
Rule for quotient of fractions
Previous
Skip
Next
Question # 10
Name the property used in 4 x (5 x 8) = ( 4 x 5) x 8
Choose an answer
Associative property of addition
Associative property of multiplication
Additive identity
Multiplicative identity
Previous
Skip
Next
Question # 11
∀a,b ε R, ab = be is a
Choose an answer
Commutative law of multiplication
Closure law of multiplication
Associative law of multiplication
Multiplicative identity
Previous
Skip
Next
Question # 12
If
∀a,b ε R,then a +b ε R is a property
Choose an answer
Closure law of addition
Associative law of addition
Additive inverse
Additive identity
Previous
Skip
Next
Question # 13
The real number system contains.
Choose an answer
Positive Numbers
Negative numbers
Zero
(option a, b and c)
Previous
Skip
Next
Question # 14
In R, the additive inverse of a is
Choose an answer
0
1
-a
1/a
Previous
Skip
Next
Question # 15
Choose an answer
Symmetric property
Cancellation property w.r.t. multiplication
Reflexive property
Transitive property
Previous
Skip
Next
Question # 16
∀x, y ∈ R, either x = y or x > y or x < y is
Choose an answer
Transitive property
Reflexive property
Trichotomy property
None of these
Previous
Skip
Next
Question # 17
The order axioms are satisfied by set of
Choose an answer
C
C and R
R
None of these
Previous
Skip
Next
Question # 18
Choose an answer
are real no
both are not real
are imaginary no
both are imaginary
Previous
Skip
Next
Question # 19
Choose an answer
Previous
Skip
Next
Question # 20
1/3 is a decimal
Choose an answer
Recurring
Terminating
Non-terminating
None of the above
Previous
Skip
Next
Question # 21
If z=(x,y) then z has no multiplicative inverse when
Choose an answer
x ≠ 0, y = 0
x = 0, y = 0
x = 0, y ≠ 0
None of these
Previous
Skip
Next
Question # 22
Choose an answer
Previous
Skip
Next
Question # 23
The symbol of irrational is
Choose an answer
W
N
Q
Q'
Previous
Skip
Next
Question # 24
Name the property used in 4.1 + (-4.1) = 0
Choose an answer
Additive inverse
Multiplication inverse
Additive identity
Multiplication identity
Previous
Skip
Next
Question # 25
i
2
=
Choose an answer
1
2
-1
0
Previous
Skip
Next
Question # 26
Choose an answer
Closure law of addition
Associative law of addition
Additive inverse
Additive identity
Previous
Skip
Next
Question # 27
(a,0) x (c,0) =
Choose an answer
(0,ac)
(ac,0)
(0,0)
(a,c)
Previous
Skip
Next
Question # 28
(7, 9) + (3, -5) =
Choose an answer
(4, 4)
(10, 4)
(9, -5)
(7, 3)
Previous
Skip
Next
Question # 29
202.04 is an example of
Choose an answer
Recurring decimals
Non-recurring decimals
Terminating decimals
None of these
Previous
Skip
Next
Question # 30
Choose an answer
Principle of equality of fractions
Rule for product of fraction
Rule for quotient of fraction
Golden rule of fractions
Previous
Skip
Next
Question # 31
Geometrically, the modulus of a complex number represents its distance from the
Choose an answer
Point (1, 0)
Point (0, 1)
Point (1, 1)
Point (0, 0)
Previous
Skip
Next
Back