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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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x
3
3x
2
3x
3
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Question # 3
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30°
45°
60°
120°
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Question # 4
If y=sin(ax+b) then y4=________:
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sin4(ax+b)
a4sin(ax+b)
a4cos(ax+b)
None of these
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Question # 5
The square root of every incomplete square is an
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Rational numbers
Even numbers
odd numbers
Irrational numbers
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Question # 6
Period of 2 cos x is ______
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Question # 7
Tan 30° = _____
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Question # 8
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Question # 9
A function which is to be maximized or minimized is called an
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Explicit function
Implicit function
Objective function
None
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Question # 10
If S is a sample space and event set E =Φ then P(E) is
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>0
1
<1
0
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Question # 11
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x = f(y)
y = f(x)
x = f(x)
y = f(y)
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Question # 12
If a parabola opens down, then its vertex is at the
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Right of the parabola
Left of parabola
Lowest point on the parabola
Highest point on the parabola
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Question # 13
The number z so that the triangle with vertices A(1,-1,0),B(-2,2,1)and C(0,2,z) is a right triangle with right angle at vertex C
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1,2
-1,-2
2,-1
-2,1
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Question # 14
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2
1
5
0
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Question # 15
Distance between A(3, 8), B(5, 6) is
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Question # 16
The set of complex numbers forms
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Commutative group w.r.t addition
Commutative group w.r.t multiplication
Commutative group w.r.t division
Non commutative group w.r.t addition
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Question # 17
Let A be a square matrix. Then, 1/2 (A-A') is
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Skew-symmetric
Symmetric
Null
None of the above
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Question # 18
The set of even prime numbers is
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(2,4,6,8,10}
{2,4,6,8,10,12}
{1,3,5,7,9}
{2}
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Question # 19
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0
-1
1
-2
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Question # 20
If m and n be two scalars, then (m+n) g =
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0
m+n
m▁a+n▁a
ma - m▁a
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Question # 21
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Question # 22
If a,b,c are three non-coplanar vector then [a +b,b +c,c +a] = _____
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[a.b.c]
2[a,b,c]
[abc]-2
2[abc]2
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Question # 23
In R, the additive inverse of a is
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0
1
-a
1/a
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Question # 24
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Question # 25
sin -1(sin2π/3) =
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π/2
2π/3
-3π/2
π/3
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Question # 26
The distance of the point (1.1) from the origin is
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0
2
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Question # 27
If A = [aij]mxpand B =[aij]pxnthen order of BA is
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m x n
p x n
n x m
None of these
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Question # 28
The equation of the circle with centre (h, k) and radius r is
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(x+ h)
2
+ (y+ k)
2
= r
2
(x+ h)
2
+ (y - k)
2
= r
2
(x - h)
2
+ (y+ k)
2
= r
2
(x - h)
2
+ (y - k)
2
= r
2
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Question # 29
The parabolay2=4ax open up if
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a<0
a≠0
a>0
All are incorrect
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Question # 30
Domain of sin x is ______
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Question # 31
A ________ divides the plane into left and right half planes.
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Vertical line
Horizontal line
Non vertical line
Inequality
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