ECAT Pre Engineering Entry Test With Answers

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ECAT Pre Engineering Entry Test

Sr. # Questions Answers Choice
1 The set { 1 , -1} is closed w.r.t. Addition Multiplications Subtraction None of these
2 Principle of equality of fractions Rule for product of fractions Golden rule for fractions Rule for quotient of fractions
3 Principle of equality of fractions Rule for product of fractions Golden rule for fractions Rule for quotient of fractions
4 Principle of equality of fractions Rule for product of fractions Golden rule of fractions Rule for quotient of fractions
5 Principle of equality of fractions Rule for product of fraction Rule for quotient of fraction Golden rule of fractions
6 Principle of equality of fractions Rule for product of fraction Rule for quotient of fraction
7 (a + b)c = ac + bc a + b = b + a (a + b) + c = a + (b + c) a(b +c) = ab + ac
8 (a + b)c = a . c + bc a + b = b + a (a + b) + c = a + (b + c) a(b+ c) = ab + ac
9 In R the right cancellation property w.r.t. addition is
10 In R the left cancellation property w.r.t addition is
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14 a = a a &lt; a a &gt; a a<sup>2</sup>= a
15 The additive inverse of 0 is 1 -1 0 Does not exist
16 The additive inverse of 1 is 1 -1 0 Does not exist
17 The multiplicative inverse of 0 is 1 -1 0 Does not exist
18 The multiplicative inverse of 1 is 1 -1 0 Does not exist
19 The multiplicative inverse of 4 is -4 -1/4 1/4 1
20 The multiplicative inverse of 2/3 is 3/2 -2/3 -3/2 1
21 The additive inverse of 2/3 is 3/2 -2/3 -3/2 0
22 In R the number of identity elements w.r.t.'.' is One Two Three Four
23 In R the number of identity element w.r.t '+' is One Two Three Four
24 In R, the multiplicative inverse of a is 0 1 -a 1/a
25 In R, the additive inverse of a is 0 1 -a 1/a
26 In R, the multiplicative identity is 0 1 -1 None
27 In R, the additive identity is 0 1 -1 None
28 Reflexive property Symmetric property Transitive property Additive property
29 Reflexive property Symmetric property Transitive property Additive property
30 Associative law of multiplication Commutative law of addition Commutative law of multiplication Associative law of addition
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