ECAT Pre Engineering MCQ Test With Answer for Chapter 1 Mathematics

• 
  A
• 
  B
• 
  C
• 
  D

Every real number is

• a positive integer A
• a rational number B
• a negative integer C
• a complex number D

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

• √3 i A
• √7 B
• -2-i C
• √5 D

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

The set of rational number is represented by

• W A
• R B
• Q' C
• Q
  
  
  D

• 0 A
• 1 B
• -1 C
• 2 D

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

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

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

1.4142135... is ______

• A natural number A
• A rational number B
• A prime number C
• An irrational number 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

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

24 can be written as a product of

• Odd factors A
• Even factors B
• Whole factors C
• Prime factors D

√-1 b=

• b A
• 2 B
• 2b C
• None of these D

• 
  A
• 
  B
• 
  C
• 
  D

14 is not a

• Prime number A
• Whole number B
• Even number C
• Real number D

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

• Odd numbers A
• Prime number B
• Rational number C
• Even number D

π is the ration of

• Area of a circle to its diameter A
• Area of a circle to its radius B
• Circumference of a circle to its diameter C
• Circumference of circle to its radius D

In polar form of complex number r =

• 
  A
• 
  B
• 
  C
• 
  D

• 1 A
• 3 B
• 2-i C
• -1 D

• Rational A
• Irrational B
• Even C
• Odd D

• 
  A
• 
  B
• 
  C
• 
  D

(a,0) x (c,0) =

• (0,ac) A
• (ac,0) B
• (0,0) C
• (a,c) D

In R, the additive identity is

• 0 A
• 1 B
• -1 C
• None D

1/3 is a decimal

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

Total number of subsets that can be formed out of the set {a,b,c} is

• 1 A
• 4 B
• 8 C
• 12 D

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

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

• 
  A
• 
  B
• 
  C
• 
  D

The symbol of irrational is

• W A
• N B
• Q C
• Q' D

• 
  A
• 
  B
• 
  C
• 
  D