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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
If in the expansion of (1+x)
n
, co-efficients of 2nd, 3rd and 4th terms are in A.P., then x=
Choose an answer
4
5
6
7
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Question # 2
If the circumference of a circle is divided into 360 congruent parts, the angle subtended by one part at the centre of the circle is
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1
0
1'
1"
1 rad
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Question # 3
If sided of๐ABC are 16,20,and 33, then the value of the greatests angle to
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150๐ 20'
132๐ 35'
101๐ 25'
160๐ 50'
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Question # 4
Composition of functions is
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Non-commutative (fg โ gf)
non-associative [8(fh) โ (8f)h]
Commutative (fg = gf)
f of-1โ 1
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Question # 5
The roots of the equation will be irrational if b
2
- 4ac is
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Positive and perfect square
Positive but not a perfect square
Negative
Zero
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Question # 6
The distance of the point (-2 , 3) from y-axis is
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2
-2
3
1
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Question # 7
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1
7
4
None of these
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Question # 8
For each natural number n, n (n+1) is
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an even
an odd
multiple of 3
Irrational
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Question # 9
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Question # 10
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6, -12, -18
-6, 4, 9
-6, -4, -9
-6, 12, 18
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Question # 11
Which of the following is factor of p(x) =2x3 +3x2+3x+2 ?
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x+1
2x+1
3x+1
2x-1
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Question # 12
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15/23
7/15
7/8
15/7
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Question # 13
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Question # 14
The axis of the parabola x
2
= 4ay is:
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y = 0
x = 0
x = -a
y = a
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Question # 15
The slope of x-axis is
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0
undefined
1
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Question # 16
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Question # 17
Cosec 60ยฐ = ______
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Question # 18
The physical quantity which can be specified by a number alongwith unit is called a
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scalar
vector
constant
none of these
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Question # 19
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Question # 20
The number of terms in the expansion of (a + b)
9
is
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10
11
9
12
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Question # 21
Sine rule for a triangle states that
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a/sin A = b/sin B = c/sin C
sin A/a = sin B/b = sin C/c
a/sin A + b/sin B + c/sin C
2a/sin A = 2b/sin B = 2c/sin C
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Question # 22
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Question # 23
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Question # 24
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(2x+a+b+c)
(a+b+c)
(a+b+c+x)
0
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Question # 25
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Question # 26
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Question # 27
The set of first elements of the ordered pairs in a relation is called its
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domain
range
relation
function
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Question # 28
The fifth term of (a+2x3)17 is
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4013 x3a13
2208a13 x12
223x7a18
38080a13 x12
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Question # 29
The roots of the equations will be equal if b
2
- 4ac is
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Positive
Negative
1
Zero
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Question # 30
A person standing on the bank of a river finds that the angle of elevation of the top of a tower on the opposite bank is 45ยฐ. then which of the following statements is correct?
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Breadth of the river is twice the height of the tower
Breadth of the river an the height of the tower are the same
Breadth of the river is half of the height of the tower
None of these
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Question # 31
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In(x
2
- x + 1)
4
+ c
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