ECAT Pre Engineering Test Preparation

ECAT Pre Engineering Entry Test

Sr. #	Questions	Answers Choice
1	If A is a subset of B and B contains at least one element which is not an element of A, then A is said to be	Improper subset of B Super set of B Proper subset of B None of these
2	For any two sets A and, A ⊆ B if	x ∈ A ⇒ x ∈ B x ∉ A ⇒ x ∉ B x ∈ A ⇒ x ∉ B None of these
3	The solution of equation x2 + 2 = 0 in the set of real number is	Infinite set Singleton set Null set None of these
4	If a 1-1 correspondence can be established b/w two sets A and B, then they are called	Equal sets Equivalent sets Over lapping sets None of these
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6
7		are real no both are not real are imaginary no both are imaginary
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9		1 -1
10		1 3 2-i -1
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12
13		-8 8 8i 32
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15
16
17		1 -i i 0
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19
20
21
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23	The set of natural no. is closed under	multiplication subtraction difference division
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