ECAT Pre Engineering MCQ Test With Answer for Chapter 1 Mathematics

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  A
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  B
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  C
• 
  D

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  A
• 
  B
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  C
• 
  D

Every irrational number is

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

• Additive property of inequality A
• Commutative property B
• Additive inverse C
• Additive identity D

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

• √5 A
• √7 B
• -1-2i C
• √3 D

3/4 is ______

• An odd number A
• An even number B
• A natural number C
• A rational number D

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  A
• 
  B
• 
  C
• 
  D

In (x + iy), y is called as

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

6 is

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

Associative law of multiplication

• ab - ba A
• a(bc) = (ab) c B
• a(b + c) = ab +ac C
• (a +b)c = ac + bc D

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  A
• 
  B
• 
  C
• 
  D

• Additive property in R A
• Multiplication property in R B
• Cancellation property in R C
• Distribution property in R D

A subset of set of complex number whose elements are of the form (a,0) is called

• Real number A
• Complex number B
• Rational number C
• Irrational number D

The set of natural no. is closed under

• multiplication A
• subtraction B
• difference C
• division D

1.4142135... is ______

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

A non-terminating non_recurring decimal represents an

• Irrational no A
• Both a & c B
• Rational no C
• None of these D

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  A
• 
  B
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  C

202.04 is an example of

• Recurring decimals A
• Non-recurring decimals B
• Terminating decimals C
• None of above D

• Associative law of addition A
• Commutative law of addition B
• Additive identity C
• Closure law of addition D

∀a,b,c∈R, a >b ∧ b>c ⇒ a >c is

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

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

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

Gooch crucible is made of :

• Brass. A
• Porcelain. B
• Bronze. C
• Gold. D

• Commutative law of addition A
• Associative law of addition B
• Additive identity C
• Additive inverse D

The set {1,2,3,4......} is called

• Set of natural numbers A
• Set of whole numbers B
• Set of rational number C
• Set of irrational numbers D

Name the property used in 100 + 0 = 100

• Additive inverse A
• Multiplicative inverse B
• Additive identity C
• Multiplicative identity D

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

• Set of whole number A
• Rational Numbers B
• Complex numbers C
• Whole numbers D

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  A
• 
  B
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  C
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  D

∀ z ∈ C, multipliucative is

• (1,1) A
• (1,0) B
• (0,1) C
• None of these D