ECAT Pre Engineering MCQ Test With Answer for Chapter 4 Mathematics

• 
  A
• 
  B
• 
  C
• 
  D

If range of a function f is B, then the function is

• surjective A
• injuctive B
• bijective C
• into D

Function is a special type of

• relation A
• ordered pairs B
• cartesian product C
• sets D

ax+by+c = 0 , represents a

• Circle A
• Parabola B
• Straight line C
• Quadratic circle D

If no two elements of ordred pair of a function from A into B are equal, then it is called

• surjective A
• injuctive B
• bijective C
• on to D

Which of the following diagrams represent into function?

• 
  A
• 
  B
• 
  C
• 
  D

Such a function which is (1 -1) is called

• surjective A
• injuctive B
• bijective C
• into D

The set of first elements of the ordered pairs forming the relation is called is

• Domain A
• Range B
• Ordered paris C
• Relation D

Negation of a given number is an example of

• Binary operation A
• group B
• unary operation C
• function D

Which of the following is surjective

• 
  A
• 
  B
• 
  C
• 
  D

Function is a special type of

• relation A
• ordered pairs B
• Cartesian product C
• Set D

A function∫ will have an inverse function if and only if it is a

• onto function A
• into function B
• Constant C
• one-one function D

The set {E,0}, is closed under (ordinary)

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

ax+by+c = 0, represent a

• circle A
• parabola B
• straight line C
• quadratic circle D

The graph of a constant line is

• vertical line A
• parabola B
• circle C
• horizontal line D

A relation a into B in which Domain is not equal to a, is called.

• Into function A
• on to function B
• None of these C
• Surjective D

If no two elements of ordered pairs of a function from A onto B are the same, then it is called

• surjective A
• injuctive B
• bijective C
• on to D

Identity element, if it exists, is

• inverse A
• unique B
• commutative C
• associative D

If no two elements of ordered pairs of a function from A onto are the same, then it is called.

• Surjective A
• Injuctive B
• Bijective C
• on to D

Which of the following diagrams represent bijective function?

• 
  A
• 
  B
• 
  C
• 
  D

The set of cartesian product A x B consists of

• Domain A
• Range B
• Binary relation C
• Ordered pair D

The net of cartesian product AxB consists of

• domain A
• range B
• binary relation C
• ordered pair D

If A is non-empty set, any subset of A x A is called a relation in

• A A
• B B
• ∅ C
• r D

The extraction of a cube root of a given number is a

• Binary operation A
• Unary operation B
• group C
• multiplicative inverse D

Which of the following notation defines AxB

• 
  A
• 
  B
• 
  C
• 
  D

• 
  A
• 
  B
• 
  C
• 
  D

• similar images A
• distinct images B
• similar range C
• option a and c D

A function from A to B is called on-to function, if its range is

• A A
• B B
• A and B C
• neither A nor B D

The group of a constant line is

• Vertical line A
• Parabola B
• Circle C
• Horizontal line D

A function f from A to B can be written as

• 
  A
• 
  B
• 
  C
• 
  D