More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
Mathematics ECAT Pre Engineering Online Test MCQs With Answers
Question # 1
if a
9 =19,a9=31 are the 6th and 9th term of an A.P. and d=4 is the common difference, then 18th term of the sequence is
Choose an answer
65
67
71
75
Previous
Skip
Next
Question # 2
An indicated sum of terms of a sequence is represented by
Choose an answer
Sn
an
S(n)
{Sn}
Previous
Skip
Next
Question # 3
If the exponent in the binomial expansion is 6, then the middle term is
Choose an answer
2nd
3rd
4th
5th
Previous
Skip
Next
Question # 4
The eccentricity of the conic 9x
2
- 16y
2
= 144 is
Choose an answer
4/5
5/4
4/3
3/4
Previous
Skip
Next
Question # 5
The points (5, -4, 2),(4, -3, 1),(7, -6, 4),(8, -7, 5) are vertices of a
Choose an answer
Square
Parallelogram
Rectangle
Rhombus
Previous
Skip
Next
Question # 6
Choose an answer
Previous
Skip
Next
Question # 7
(x + 2)
2
= x
2
+ 4x + 4 is
Choose an answer
A linear equation
A cubic equation
A quadratic equation
None
Previous
Skip
Next
Question # 8
sin
2
α
cos
2
α
=
Choose an answer
-1
0
1
None of these
Previous
Skip
Next
Question # 9
Choose an answer
15
15 i
-15 i
-15
Previous
Skip
Next
Question # 10
The middle term of the expansion (1 + 2x)
6
is ______
Choose an answer
1st term
4th term
2nd term
5th term
Previous
Skip
Next
Question # 11
If a
1
and r are the first term and the common ratio respectively then (n + 1)th term of the G.P. is
Choose an answer
0
a
1
r
n-1
a
1
r
n+1
a
1
r
n
Previous
Skip
Next
Question # 12
Choose an answer
Previous
Skip
Next
Question # 13
Let A be a square matrix. Then, 1/2 (A-A') is
Choose an answer
Skew-symmetric
Symmetric
Null
None of the above
Previous
Skip
Next
Question # 14
If a set S contains "n" elements then P (S) has ...... number of elements
Choose an answer
2
n
2
2n
2 . n
n
2
Previous
Skip
Next
Question # 15
If z
1
= 2 + 6i and z
2
= 3 + 7i, then which expression defines the product of z
1
and z
2
?
Choose an answer
36 + (-32)i
-36 + 32i
6 + (-11)1
0, +(-12)i
Previous
Skip
Next
Question # 16
Choose an answer
In f(x) + c
f(x) - c
Previous
Skip
Next
Question # 17
Name the property used in 4.1 + (-4.1) = 0
Choose an answer
Additive inverse
Multiplication inverse
Additive identity
Multiplication identity
Previous
Skip
Next
Question # 18
The general value of
θ
satisfying the equation 2 sin
2
θ
- 3 sin
θ
-2 = 0 is
Choose an answer
Previous
Skip
Next
Question # 19
The statement that a group can have more than one identity elements is
Choose an answer
True
False
Ambiguous
Some times true
Previous
Skip
Next
Question # 20
The first three terms in the expansion of (1 - x)
-2
are
Choose an answer
1 - 2x + 3x
2
1 - 2x - 3x
2
1 + 2x + 3x
2
-2 - 2x +3x
2
Previous
Skip
Next
Question # 21
A circle which touches one side of a triangle externally and the other two sides produced is called ______
Choose an answer
In-circle
Circum cirle
Escribed circle
None of these
Previous
Skip
Next
Question # 22
The point P (5,8) and the origin lie on the side of the line 3x+ 7y+ 15 =0
Choose an answer
Same side
P above and origin below
Opposite side
P below and origin above
Previous
Skip
Next
Question # 23
The behavior of trigonometric function is called
Choose an answer
Continuity
Discontinuity
Periodicity
Smoothness
Previous
Skip
Next
Question # 24
Range of cosec
θ
is
Choose an answer
W - {y | -1 < y < 1}
R - {y | -1 < y < 1}
O - {y | -1 < y < 1}
R
Previous
Skip
Next
Question # 25
A monoid (G, *) is said to be group if
Choose an answer
have identity element
is commutative
have inverse of each element
None of these
Previous
Skip
Next
Question # 26
Cosec 60° = ______
Choose an answer
Previous
Skip
Next
Question # 27
Choose an answer
none of these
Previous
Skip
Next
Question # 28
Which of the following does not represent absolute value of a vector
Choose an answer
magnitude
length
norm
number
Previous
Skip
Next
Question # 29
Choose an answer
Previous
Skip
Next
Question # 30
Choose an answer
Previous
Skip
Next
Question # 31
Power set of X i.e P(X)..........under the binary operation of union U
Choose an answer
Forms a group
Does not form a group
Has no identity element
Infinite set although X is infinite
Previous
Skip
Next
Back