ECAT Pre Engineering MCQ Test With Answer for Chapter 4 Mathematics

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  A
• 
  B
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  C
• 
  D

The set of second elements of the ordered pairs forming a relation called a

• Domain A
• Range B
• Function C
• Relation 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

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

• multiplication A
• addition B
• subtraction C
• division 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

There will be no inverse if the function is

• one -to - one A
• One to many B
• onto C
• into D

The group of a constant line is

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

(a,b) = (c,d) if and only if

• a=b and c =d A
• a = d and b = c B
• a = c and b = d C
• a - b = c -d D

Addition is not operation on

• Natural numbers A
• Even numbers B
• odd numbers C
• set of integers 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 identity function is

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

A semi-group having an identity is called a

• groupoid A
• non-commutative B
• abelian C
• monoid D

the function y = mx+c is, called linear function, because

• it has only two variables A
• it has one varible B
• its graphs is straight line C
• its graphs is circle D

The set of cartesian product A x B consists of

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

The graph of a constant line is

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

N is closed with respect to ordinary

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

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

• A A
• B B
• D C
• r 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

Function is a special type of

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

• injuctive as well as surjective A
• both onto and into B
• one - one and into C
• only (1 - 1) D

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

Function is a special type of

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

• bijective function A
• into function B
• onto function C
• surjective D

Negation of a given number is an example of

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

The inverse of a line is

• inverse A
• Line B
• quadratic C
• Circle D

ax+by+c = 0, represent a

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

arb mean

• a is related to b A
• b is related to a B
• a is reciprocal of b C
• a is not related to b D

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

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