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Online Tests
ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
u,v,wand u x (v.w) are
Choose an answer
Equal
Parallel
Additive immense of each other
Meaningless
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Question # 2
If Cos
θ
=0, then
θ
= ______
Choose an answer
n
π
/2
(2n + 1)
π
/2
(2n - 1)
π
/2
(4n + 1)
π
/2
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Question # 3
If s = 2t
3
- 3t
2
+ 15t - 8 is the equation of motion of a particle, then its initial velocity is
Choose an answer
8
15
-6
None
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Question # 4
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 # 5
The negation of given number is a
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Binary operation
Unary operation
Relation
None of these
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Question # 6
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Question # 7
The coefficient of x
10
in the expansion (x
3
+3/x
2
)
10
is
Choose an answer
1700
17023
17027
17010
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Question # 8
sin h x = ___________
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Question # 9
The order axioms are satisfied by set of
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C
C and R
R
None of these
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Question # 10
if Z1 = 1+i, Z2= 2+3i, then |Z2 -Z1| =
Choose an answer
√3 i
√7
-2-i
√5
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Question # 11
Sin
-1
(-x)=
Choose an answer
Cos
-1
1/x
- Sin
-1
X
Cot
-1
X
None of these
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Question # 12
6! = ______
Choose an answer
360
720
6.5.4
None of these
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Question # 13
The distance between the points (2, 2) and (3, 3) is
Choose an answer
10
5
2
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Question # 14
The mid point of the line segment joining the points (a,b) and (b,a) is
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Question # 15
Let A,B and C be any sets such that A∪B = A∪C and A∩ B = A∩ C then
Choose an answer
A = B
B = C
A≠ C
A ≠ B
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Question # 16
If the lines 2x-3y-1=0,3x-y-5=0 and 3x+py+8=0 meet at a unique point then
Choose an answer
p = -14
p = -1
p =0
p=12
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Question # 17
The multiplicative inverse of (a,b) is
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Question # 18
The fifth term of an A.P. Whose first term is 5 and common difference is 3,is
Choose an answer
20
17
25
30
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Question # 19
x = ________ is in the solution of 2x - 3 < 0
Choose an answer
2
-2
3
4
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Question # 20
Empty set is
Choose an answer
Not the member of real numbers
Infinite set
Finite set
Not subset of every set
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Question # 21
π is the ration of
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Area of a circle to its diameter
Area of a circle to its radius
Circumference of a circle to its diameter
Circumference of circle to its radius
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Question # 22
Choose an answer
none of these
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Question # 23
Which of the following has the same value as i
113
?
Choose an answer
i
-1
-i
1
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Question # 24
The intercepts of the plane 2x - 3y + 4z = 12 on the co-ordinate axes are given by
Choose an answer
2, -3, 4
6, -4, -3
6, -4, 3
3, -2, 1.5
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Question # 25
The number of permutation that can be formed from the letters of the word OBJECT is
Choose an answer
700
600
720
620
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Question # 26
What is the circular measure of the angles between the hands of which at 4 o clock
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π/6
3π/2
π/4
2π/3
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Question # 27
The multiplicative inverse of 1 - 2i is
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Question # 28
ax + by < c is linear inequality in
Choose an answer
four variables
three variables
two variables
one variable
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Question # 29
The number of real tangents that can be drawn to the ellipse 3x
2
+ 5y
2
= 32 passing thro. (3, 5) is
Choose an answer
0
1
2
Infinite
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Question # 30
If
u
=[3,-4],then modulus of
u
is:
Choose an answer
5
5i
-5
√5
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Question # 31
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