ECAT Pre General Science MCQ Test With Answer for Mathematics Chapter 1

• 
  A
• 
  B
• 
  C
• 
  D

• Reflexive property A
• Symmetric property B
• Transitive property C
• Additive property D

• 
  A
• 
  B
• 
  C
• 
  D
• 
  E

If in a set of real no a is multiplicative identity then

• a,a = a² A
• a,a = 1 B
• a,a = 0 C
• None of these D

• 1 A
• 3 B
• 2-i C
• -1 D

• a = a A
• a < a B
• a > a C
• a²= a D

∀a,b,c∈R, a >b ∧ b>c ⇒ a >c is

• Trichotomy property A
• Transitive property B
• Symmetric property C
• Additive property D

The set {0,-1} hold closure property under

• Addition A
• Both a & c B
• Multiplication C
• None of these D

What is the conjugate of -6 -i

• -6 +i A
• 6 + i B
• -6 -i C
• 6 -i D

(√3+√5)+√7 = √3 +(√5 +√7) property used in above is

• Commutative property of addition A
• Closure property of addition B
• Additive inverse C
• Associative property w.r.t to adition D

• Trichotomy property A
• Additive property of inequality B
• Transitive property C
• Multiplicative property D

• 0 A
• 1 B
• -1 C
• None of these D

Name the property used in a (b-c) = ab - ac

• commutative property of multiplication A
• distributive property of multiplication B
• associative property of multiplication C
• multiplicative inverse D

• -8 A
• 8 B
• 8i C
• 32 D

• Multiplication property A
• Additive property B
• Trichotomy property C
• Transitive property of inequality D

Multiplicative inverse of "1" is

• 0 A
• ±1 B
• 1 C
• {0,1} D

a.a^-1= a^-1.a = 1 is a

• Commutative law of multiplication A
• Multiplication identity B
• Associative law of multiplication C
• Multiplication inverse D

∀a,b ε R, ab = be is a

• Commutative law of multiplication A
• Closure law of multiplication B
• Associative law of multiplication C
• Multiplicative identity D

What is the conjugate of -7 -2i?

• -7 + 2i A
• 7 + 2i B
• 7 -2i C
• None of these D

The real number system contains.

• Positive Numbers A
• Negative numbers B
• Zero C
• (option a, b and c) D

There is no element common in

• N and W A
• E and W B
• N and O C
• Q and Q' D

Name the property used in 1000 x 1 = 1000

• additive inverse A
• multiplicative inverse B
• additive identity C
• multiplicative identity D

Which of the following has the same value as i¹¹³?

• i A
• -1 B
• -i C
• 1 D

The set of rational number is represented by

• W A
• R B
• Q' C
• Q
  
  
  D

(a, b) + (-a, -b) =

• (0,0) A
• (a, b) B
• (-a, -b) C
• (1, 1) D

i =

• 
  A
• 
  B
• 
  C
• 
  D

• 
  A
• 
  B
• 
  C

• A rational number A
• A natural number B
• An irrational number C
• An integer D

• 
  A
• 
  B
• 
  C
• 
  D

0 (zero) is

• An irrational number A
• A rational number B
• A negative integer C
• A positive number D