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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
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Question # 2
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Question # 3
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Question # 4
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none of these
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Question # 5
202.04 is an example of
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Recurring decimals
Non-recurring decimals
Terminating decimals
None of above
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Question # 6
The decimal fraction in which we have finite number of digits in its decimal part is called.
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recurring decimal fraction
Non terminating faction
Non recurring fraction
terminating decimal fraction
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Question # 7
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0
1
-1
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Question # 8
x = -1 is in the solution of the inequality
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x + 5 < 0
2x + 3
<
0
x > 0
2x + 3 > 0
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Question # 9
The contra positive of p → q is
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q → p
~q→~q
~p→~q
None of these
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Question # 10
The square of the distance between two points P(x
1
, y
1
) and Q(x
2
, y
2
) is
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Question # 11
Every recurring decimal represents
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A natural number
A rational number
An irrational number
A whole number
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Question # 12
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Reflexive property
Symmetric property
Cancellations property w.r.t. addition
Transitive property
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Question # 13
If one end of the diameter of the circle 2x
2
+ 2y
2
-8x - 4y = 2 = 0 is (2 ,3), the other end is:
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(2,1)
(-2,1)
(2,-1)
(1,-1)
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Question # 14
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Question # 15
Tangent is a periodic function and its period is ______
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2
π
3
π
π
4
π
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Question # 16
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Question # 17
A square matrix A for which A
t
= A is called a
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Column matrix
Symmetric matrix
Skew-symmetric matrix
Row matrix
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Question # 18
The exact value of cos-1 (0) is
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π/2
-π/2
3π
π-π/6
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Question # 19
The minimum value of the quadratic function f(x) = 5 x 2-11,is
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7
-7
6
-11
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Question # 20
Derivative of strictly increasing function is always
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Zero
Positive
Negative
Both (A) and (B)
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Question # 21
Six boys and 3 girls are to be seated at random, in a row, for a photograph. The probability that no two girls will sit together is
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1/12
1/6
5/12
7/12
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Question # 22
The conjugate of √5
i
is
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√5
-√5 i
i
5i
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Question # 23
If n is any positive integer then 3 + 6 + 9 + ....+ 3n = ______
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Question # 24
The direction cosines of a line equally inclined with co-ordinate axes are
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Question # 25
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Set of whole number
Rational Numbers
Complex numbers
Whole numbers
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Question # 26
cos2a=______;
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cos2 a-sin2 a
2cos2 a-1
1-2 sin2 a
All of these
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Question # 27
The sample space for tossing a coin once is
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{T, T}
{H, H}
{H, T}
None of these
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Question # 28
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25
16
5
0
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Question # 29
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Question # 30
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I
|A|
|A| I
None of these
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Question # 31
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