ECAT Pre Engineering MCQ Test With Answer for Chapter 1 Mathematics

In (x + iy), y is called as

• Imaginary part A
• Complex number B
• Real part C
• None of above D

• 
  A
• 
  B
• 
  C
• 
  D

• Principle of equality of Fractions A
• Rule for product of fraction B
• Golden rule of fraction C
• Rule of quotient of Fraction D

If z = (x,y) , then  z ̅  =

• (-x,y) A
• (x,-y) B
• (-x, -y) C
• None of these D

√x = ______ if is a prime number

• Rational no A
• Natural no B
• Irrational no C
• Complex no D

• 
  A
• 
  B
• 
  C
• 
  D

• 
  A
• 
  B
• 
  C
• 
  D

• 
  A
• 
  B
• 
  C
• 
  D

• -8 A
• 8 B
• 8i C
• 32 D

• Associative property of addition A
• Commutative property of addition B
• Distributive property C
• Additive identity D

• (x, y) A
• (kx, y) B
• (x, ky) C
• (kx, ky) D

• 
  A
• 
  B
• 
  C

i =

• √1 A
• √2 B
• √-2 C
• √-1 D

1/3 is ______

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

1/3 is a decimal

• Recurring A
• Terminating B
• Non-terminating C
• None of the above D

Every irrational number is

• A real number A
• A prime number B
• A natural number C
• An integer D

Any recurring decimal represents a

• Irrational no A
• Integer B
• Rational no C
• None of these D

• A rational number A
• An irrational number B
• An odd number C
• A prime number D

In (x +iy) y is called as

• Imaginary part A
• Complex number B
• Real part C
• None of above D

∀a,b, c ε R,a +c = b + c = > a = b

• Reflexive property A
• Symmetric property B
• Cancellations property w.r.t. addition C
• Transitive property D

2/9,5/7∈ R,(2│9)(5│7)=10/63∈R this property is called

• Associative property A
• Identity property B
• Commutative property C
• Closure property w.r.t multiplication D

• N A
• r B
• 2r C
• π D

i² =

• 1 A
• 2 B
• -1 C
• 0 D

The solution set of the equation |3x + 2| = 5 is

• 
  A
• 
  B
• 
  C
• 
  D

If P is a whole number greater than 1, which has only P and I are factors. Then P is called

• Wholw number A
• Prime number B
• Even number C
• Odd number D

If z₁ = 1 + 2i, z₂ = 3 + 4i then

• z₁ > z₂ A
• z₁ = z₂ B
• z₁ < z₂ C
• None of these D

Q∪ Q' =

• Q A
• Q' B
• N C
• R D

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

If 4 > b or a < b than a = b is a

• Additive property A
• Transitive property B
• Trichotomy property of inequality C
• None of above D

• Associative property of addition A
• Associative property of multiplication B
• Commutative property of addition C
• Commutative property of multiplication D