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

1/3 is a decimal

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

• 
  A
• 
  B
• 
  C
• 
  D

i² = 

• 1 A
• 2 B
• -1 C
• 0 D

• 
  A
• 
  B
• 
  C
• 
  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

• 1 A
• -i B
• i C
• 0 D

• 0 A
• 1 B
• -1 C
• 2 D

i^-(4n+2) = -------------------------------

• 1 A
• i B
• -1 C
• -i D

If 0 = R, thenthe additive inverse of a is

• 1/9 A
• ^1/-9 B
• a C
• -a D

• Principle of equality of fractions A
• Rule for product of fraction B
• Rule for quotient of fraction C

A non-terminating, non-recurring decimal represent

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

√2 +√3 +√5) = (√2 +√3 +√5: this property is called

• associative property w.r.t addition A
• commutative property B
• Closure property w.r.t addition C
• Additive identity D

Name the property used in 1000 x 1 = 1000

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

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

There is no element common in

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

1/3 is ______

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

• 
  A
• 
  B
• 
  C
• 
  D

The square roots of negative numbers is called

• Real no A
• Complex no B
• Positive no C
• Negative no D

• 
  A
• 
  B
• 
  C
• 
  D

Zero is

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

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

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

The real number system contains.

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

• x A
• 
  B
• y C
• 
  D

π is ______

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

• Principle of equality of fractions A
• Rule for product of fractions B
• Golden rule for fractions C
• Rule for quotient of fractions D

In (x + iy), y is called as

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

In polar form of complex number r =

• 
  A
• 
  B
• 
  C
• 
  D

• 
  A
• 1 B
• 
  C
• -1 D

• 
  A
• 
  B
• 
  C
• 
  D