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Online Tests
ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
If S is a sample space and event set E = S then P(E) is
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>0
1
<1
0
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Question # 2
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Question # 3
Name the property used in 1000 x 1 = 1000
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additive inverse
multiplicative inverse
additive identity
multiplicative identity
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Question # 4
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Question # 5
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Question # 6
The matrix A = [aij]mxn with m ≠n is always
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Symmetric
Hermition
Skew-symmetric
None
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Question # 7
The differential equation representing the family of curves y = A cos (x + B), where A, B are parameters, is
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Question # 8
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Question # 9
In R the number of identity element w.r.t '+' is
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One
Two
Three
Four
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Question # 10
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Question # 11
The latus rectum of the ellipse 5x
2
+ 9y
2
= 45 is
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10 / 3
5 / 3
3 / 5
3 / 10
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Question # 12
For three consecutive terms in A.P middle term is called
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A.M
nth term
Central term
None of these
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Question # 13
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Question # 14
The maximum value of sin x + cos x is
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Question # 15
The set X is
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Proper Subset of X
Not A subset of X
Improper Subset of X
None of these
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Question # 16
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xa
x-1
a
x
x in a
a
x
In a
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Question # 17
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Question # 18
A non-terminating non_recurring decimal represents an
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Irrational no
Both a & c
Rational no
None of these
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Question # 19
If the focus lies on the y-axis with coordinates f(0,a) and directrix of the parabola is y = -a, the equation of parabola is:
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y
2
= -4 ax
x
2
= 4ay
x
2
= -4ay
y
2
= 4ax
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Question # 20
∀x,y,z ∈ R and z 0,then
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x > y ⇒ xz > yz
x<y ⇒ xz < yz
x < y ⇒ xz > yz
None of these
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Question # 21
∫x sin xdx is equal to:
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sin x/x + cos x
sin x - cos x/x
x cos x + sin x
- x cos x + sin x
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Question # 22
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image
pre-image
constant
none of these
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Question # 23
cot
θ
= sin 2
θ
if
θ
=
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Question # 24
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2
0
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Question # 25
The 6th term of an arithmetic sequence whose first term is 3 and common difference in zero is
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18
6
3
0
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Question # 26
w
29
= ______
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0
1
w
w
2
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Question # 27
The solution set of x < 4 is
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-
∞
< x < 4
-
∞
> x > 4
-
∞
< x < 2
-
∞
> x > 2
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Question # 28
If A is a set then any subset R of A 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 # 29
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Question # 30
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 # 31
The set {1, -1, 1, -1}, form a group under
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Addition
Multiplication
Subtraction
None
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