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Online Tests
ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
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Question # 2
What is the conjugate of -7 -2i ?
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-7 + 2i
7 +2i
7 -2i
√53
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Question # 3
If A⊆ B, and B is a finite set, then
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n (a) < n(B)
n(B)<(A)
n(A)≤ n (B)
n(A)≥ n(B)
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Question # 4
The set of the first elements of the orders pairs forming a relation is called its
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Relation in B
Range
Domain
Relation In A
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Question # 5
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Question # 6
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Question # 7
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360°
180°
90°
None of these
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Question # 8
Onto function is also called
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Binjective function
Injective function
Surjechive function
None of these
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Question # 9
What is the conjugate of -6 -i?
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-6 +i
6+i
-6 -i
6 -i
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Question # 10
Which symbolic notation represent unary operation ?
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-
∨
∧
⇔
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Question # 11
The locus of the centre of a circle which touches two given circles externally is:
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a hyperbola
an ellipse
a circle
a parabola
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Question # 12
The term involving x4 the expansion (3-2x)7 is
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217 x4
15120x4
313x4
-25x4
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Question # 13
A committee consists of 9 experts taken from three institutions A, B, and C, of which 2 are from, A, 3 form B and 4 from C. If three experts resign, then the probability that they belong to different institutions is
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1 / 729
1 / 24
1 / 21
2 / 7
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Question # 14
If A and B are two sets then any subset R of B x A is called
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relation on A
relation on B
relation from A to B
relation from B to A
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Question # 15
The value of the expression 3 cosθ+ 4 sinθθlie between
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-7 and 7
-25 and 25
-1 and 1
-5 and 5
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Question # 16
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Question # 17
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1
-1
0
None of these
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Question # 18
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Question # 19
If f(√x)=sin x , then f′(x) =______;
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2xcosx2
cosx2
cos√x
None of these
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Question # 20
The roots of (x - a)(x - b) = ab x2 are always
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Real
Depends upon a
Depends upon b
Depends upon a and b
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Question # 21
The number of divisors of 1029, 1547 and 122 are in
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A.P.
G.P.
H.P.
None of these
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Question # 22
The slope of y-axis is
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0
undefined
1
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Question # 23
How many arrangements of the letters of the word PAKISTAN cab be made
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Question # 24
What is the value of cos-1(1/2)?
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π/3
π/4
3π/2
π/6
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Question # 25
For any integer k, w
n
= ______ when n = 3k
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1
2
0
-4
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Question # 26
Zero is
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An irrational number
A rational number
A negative integer
A positive number
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Question # 27
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4(x
3
- 3x
2
)
3
+ c
3x
2
- 6x + c
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Question # 28
The graph of linear equation 2x + 3y = 10
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Parabola
Circle
Hyperbola
Straight line
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Question # 29
If B-A≠φ , then n(B-A) is equal to
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n(a)+n(c)
n(c)-n(a)
n(a)-n(c)
None of these
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Question # 30
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Question # 31
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