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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
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Addition
Multiplication
Division
Both addition and multiplication
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Question # 2
Sin -1 x=
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sin(π/2-x)
Sin-1 (π/2-x)
π/2-cos-1x
π/2 + cos-1x
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Question # 3
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Question # 4
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1
0
5
2
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Question # 5
Three dice are thrown together. The probability of getting a total of at least 6 is
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103 / 108
10 / 216
93 / 108
None of these
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Question # 6
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2
5
7
None of these
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Question # 7
Which shape of the following objects are approximately parabolic ares?
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Light reflectors
Force
Weight of the pendul
None of these
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Question # 8
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Question # 9
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Question # 10
The term independent of x is the expansion (x
3
+1/x)
12
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295
495
395
722
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Question # 11
sec h x = ________
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Question # 12
If|a| =|b|=|a + b|=1, then|a+ b| = 5, then|a-b| =
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4
6
5
3
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Question # 13
If f(√x)=sin x , then f′(x) =______;
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2xcosx2
cosx2
cos√x
None of these
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Question # 14
I f a =5i + 2j, then|a| =
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√13
√7
1/√13
√29
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Question # 15
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a = 4, b = 1
a = 1, b = -4
a = 0, b = 4
a = 2, b = 4
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Question # 16
The range of y = cot x = ______
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-
∞
> y > +
∞
-
∞
> x > +
∞
-
∞ <
y < +
∞
None of above
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Question # 17
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Question # 18
The function sine and Cosine have the closed internal as their range
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[1, 0]
[-1, 1]
[0, 1]
[-1, 2]
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Question # 19
Digit in the unit place of the number 183! + 3
183
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7
6
3
0
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Question # 20
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a cosec(ax + b) + c
- a cosec(ax + b) + c
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Question # 21
Period of tan x is ______
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Question # 22
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-1
0
1
undefined
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Question # 23
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Question # 24
Every real number is
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A complex number
A rational number
A natural number
A prime number
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Question # 25
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Question # 26
If a > 0 they parabola y2 =-4ax lies in
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I and iv quadrant
I quadrant
II and III quadrant
All are incorrect
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Question # 27
The quadratic equation 8 sec
2
θ
- 6 sec
θ
+1 = 0 has
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Infinitely many roots
Exactly two roots
Exactly four roots
No roots
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Question # 28
Power set of X i.e P(X)..........under the binary operation of union U
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Forms a group
Does not form a group
Has no identity element
Infinite set although X is infinite
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Question # 29
A conditional is regarded as false only when the antecedent is true and consequent is
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True
False
Known
Unknown
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Question # 30
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A = x, B = 1
A = 0, B = 2
A = -1, B = 1
A = x-1, B = x+1
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Question # 31
How many signals can be given by 5 flags of different colours, using 3 flags at a time
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120
60
24
15
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