Mathematics ECAT Pre Engineering Online Test With Answers

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Mathematics ECAT Pre Engineering Online Test

Sr. # Questions Answers Choice
1 The extraction of cube root of a given number is a Unary Operation Binary Operation Relation None of these
2 The negation of given number is a Binary operation Unary operation Relation None of these
3 A conditional is regarded as false only when the antecedent is true and consequent is True False Known Unknown
4 A disjunction of two statement p and q is true p is false q is false Both p and q are false One of p and q is true
5 A conjunction of two statement p and q is true only if p is true q is true Both p and q are true both p and q are false
6 (A∩Bc)c= ------------------------- Ac∪Bc Ac∪B Ac∩B None of these
7 For a set A, A∪Ac= --------------------- A ∅ Ac U
8 A∪(A∪B)= -------------------- B A A∪B None of these
9 (A∪B)∪C= -------------------------- A∩B(B∪C) A∪(B∪C) A∪(B∩C) None of these
10 If B⊆ A, then complement of B in A is = ----------------------- A-B A∩B B-A A∪B
11 If A=B, then A⊂B and B⊂A A⊆B and B⊈A A⊆B and B⊆A None of these
12 The set X is Proper Subset of X Not A subset of X Improper Subset of X None of these
13 The function whose range consists of just one element is called One-One Function Identity Function Onto Function Constant Function
14 None of these
15 The set of natural is a semi group w.r.t Addition Division Subtraction None of these
16 A monoid (G, *) is said to be group if have identity element is commutative have inverse of each element None of these
17 The geometrical representation of a linear function is Circle Parabola Straight lie None of these
18 Addition Subtraction Multiplication None of these
19 None of these
20 If f:A→B is an injective function and second elements of no two of its ordered pairs are equal, then f is called 1-1 and onto Bijective 1-1 and into None of these
21 Onto function is also called Binjective function Injective function Surjechive function None of these
22 The contra positive of p → q is q → p ~q→~q ~p→~q None of these
23 The logic in which every statement is regarded as true or false and no other possibility is called Aristotelian login Inductive logic Non-Aristotelian logic None of these
24 If B-A≠φ , then n(B-A) is equal to n(a)+n(c) n(c)-n(a) n(a)-n(c) None of these
25 If A∩B=B, then n(A∩B) is equal to n(a) n(a)+n(c) n(c) None of these
26 If the intersection of two sets is non-empty, but either is a subset of other are called Disjoint sets Over lapping Equal sets None of these
27 The set which has no proper subset is {0} {} {∅} None of these
28 The set {x|x∈N∧x-4=0} in tabular form is {-4} {0} {} None of these
29 {x|x∈R∧x≠x} is a Infinite set Null set Finite set None of these
30 The set of rationals numbers between 0 and I is Finite Null set Infinite None of these
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