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 the angle of a triangle are in the ratio 2 : 3 : 7, the triangle is
Choose an answer
Obtuse
Acute
Right angle
Isosceles
Previous
Skip
Next
Question # 2
Choose an answer
z is purely imaginary
a is any complex number
z is real
None of these
Previous
Skip
Next
Question # 3
If f(√x)=sin x , then f′(x) =______;
Choose an answer
2xcosx2
cosx2
cos√x
None of these
Previous
Skip
Next
Question # 4
The value of the expression 3 cosθ+ 4 sinθθlie between
Choose an answer
-7 and 7
-25 and 25
-1 and 1
-5 and 5
Previous
Skip
Next
Question # 5
The first three terms in the expansion of (1 + x)
-1
are
Choose an answer
1 + x + x
2
1 - x - x
2
-1 -x + x
2
1 - x + x
2
Previous
Skip
Next
Question # 6
Inverse of the function y-10x is
Choose an answer
y=logx
y=lnx
x=10y
x=10y
Previous
Skip
Next
Question # 7
Choose an answer
0
1
-1
None of these
Previous
Skip
Next
Question # 8
Choose an answer
Previous
Skip
Next
Question # 9
Choose an answer
square root function
identity function
linear function
quadratic function
Previous
Skip
Next
Question # 10
Let S
n
denote the sum of the first n terms of an A.P. If S
2n
= 3 S
n
: S
n
is equal to
Choose an answer
4
6
8
10
Previous
Skip
Next
Question # 11
Choose an answer
Previous
Skip
Next
Question # 12
Rational number is a number which can be written as a terminating decimal fraction or a
Choose an answer
Non-terminating decimal fraction
Non-recurring
Recurring decimal fraction
a, b and c
Previous
Skip
Next
Question # 13
What is the 26th term of the sequence, if its general term is a
n = (-1)
n+1
Choose an answer
2
26
27
1
Previous
Skip
Next
Question # 14
Choose an answer
a sec(ax + b) + c
- a sec(ax + b) + c
Previous
Skip
Next
Question # 15
Choose an answer
Previous
Skip
Next
Question # 16
Choose an answer
Previous
Skip
Next
Question # 17
Choose an answer
Previous
Skip
Next
Question # 18
The coordinates of a point P(x,y) referred to XY-system are
Choose an answer
(x+y,y+k)
(x-h,y-k)
(x,y)
(x-h,y-k)
Previous
Skip
Next
Question # 19
Choose an answer
0
1
Previous
Skip
Next
Question # 20
Which of the following is a vector.
Choose an answer
distance
temperature
energy
acceleration
Previous
Skip
Next
Question # 21
The set of all positive even integers is
Choose an answer
Not a group
A group w.r.t. subtraction
A group w.r.t. division
A group w.r.t. multiplication
Previous
Skip
Next
Question # 22
If in a set of real no a is additive identity then
Choose an answer
a+a = 2a
a+a = 1
a+a = 0
None of these
Previous
Skip
Next
Question # 23
A tower subtends an angle
α
at a point on the same level as the root of the tower and at a second point, b meters above the first, the angle of depression of the foot of the tower is
β
. The height of the tower is
Choose an answer
b cot
α
tan
β
b tan
α
tan
β
b tan
α
cot
β
None of these
Previous
Skip
Next
Question # 24
Choose an answer
Previous
Skip
Next
Question # 25
If a,b,c are unit vectors then |a + b|2 +|a - b|2
Choose an answer
4
8ab
9cos
4(a,b)
Previous
Skip
Next
Question # 26
The general equation of a circle is
Choose an answer
Previous
Skip
Next
Question # 27
The set (Z, +) forms a group
Choose an answer
Forms a group w.r.t. addition
Non commutative group w.r.t. multiplication
Forms a group w.r.t multiplication
Doesn't form a group
Previous
Skip
Next
Question # 28
2cos2 a/2 =______;
Choose an answer
1+sina
1-sina
1+cosa
1-cosa
Previous
Skip
Next
Question # 29
Choose an answer
Singleton set
A set with two points
Empty set
None of these
Previous
Skip
Next
Question # 30
A and B be two square matrices and if their inverse exist, the (AB)
-1
=
Choose an answer
A
-1
B
-1
AB
-1
A
-1
B
B
-1
A
-1
Previous
Skip
Next
Question # 31
Choose an answer
In(x
2
- x + 1) + c
In(2x - 1) + c
Previous
Skip
Next
Back