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Online Tests
Mathematics ECAT Pre Engineering Online Test MCQs With Answers
Question # 1
If n is add the expansion (a + x)
n
has middle terms
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2
3
4
5
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Question # 2
The middle term of (x-y)
8
is
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25 x
4
y
4
70 x
4
y
4
120 x
4
y
4
97x
4
y
4
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Question # 3
If P, Q, R be the A.M., G.M., H.M. respectively between any two rational numbers a and b, then P - Q is
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Question # 4
For any set B,B∪B' is
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Is set B
Set B'
Universal set
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Question # 5
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Singleton set
A set with two points
Empty set
None of these
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Question # 6
The identity element with respect to subtraction is
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0
-1
0 and 1
None of thes
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Question # 7
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Question # 8
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Question # 9
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1.5
1.2
8
None of these
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Question # 10
The principal value of sin
-1
[-√(√3) /2] is
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5π/3
-2π/3
-
π/3
π/3
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Question # 11
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Addition
Subtraction
Multiplication
None of these
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Question # 12
The distance between the points (0,0) and (x,y) is
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x
2
+ y
2
x
y
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Question # 13
If 4 - x >5, then
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x > 1
x > -1
x < 1
x < -1
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Question # 14
The formula an = arn-1represents
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nth term of G.P
Sum of the first n terms
G.M between a and b
None of these
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Question # 15
Two circles are said to be concentric if they have
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same radius
same chord
same centre
same diameter
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Question # 16
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Question # 17
60° = ______
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Question # 18
If Projvu = Projuv, then
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Uand vare parallel
|u|=|v|
Uandvre perpendicular
One ofuorv
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Question # 19
E-radius corresponding to < A is
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Question # 20
Which of the following sets is finite
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The set of natural numbers between 3 and 10
The set of rational numbers between 3 and 10
The set of real numbers between 0 and 1
The set of rational numbers between 0 and 1
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Question # 21
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a
x
a
x
In a
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Question # 22
Which of the following is a vector.
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energy
force
work
power
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Question # 23
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Question # 24
The angle between the vectors 3i + j - k and 2i - j + k is
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Question # 25
The fifth term of an A.P. Whose first term is 5 and common difference is 3,is
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20
17
25
30
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Question # 26
If all members of a sequence are real numbers then it is called
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A.P
Real Sequence
G.P
None of these
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Question # 27
What is the circular measure of the angle between the hands of a watch at 4 O'clock
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Question # 28
If z
1
= 2 + 6i and z
2
= 3 + 7i, then which expression defines the product of z
1
and z
2
?
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36 + (-32)i
-36 + 32i
6 + (-11)1
0, +(-12)i
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Question # 29
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Question # 30
If f(α) = b2 and g (c) =d where c=b2 then (gof)(a) is
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α
c
b
d
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Question # 31
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A
B
U
None of these
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