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
Six boys and 3 girls are to be seated at random, in a row, for a photograph. The probability that no two girls will sit together is
Choose an answer
1/12
1/6
5/12
7/12
Previous
Skip
Next
Question # 2
Choose an answer
- cos x
sin x
- sin x
sec x
Previous
Skip
Next
Question # 3
Choose an answer
Previous
Skip
Next
Question # 4
1/3 is ______
Choose an answer
A prime number
An integer
A rational number
An irrational number
Previous
Skip
Next
Question # 5
Choose an answer
-1
0
1
undefined
Previous
Skip
Next
Question # 6
If A and B are two matrices such that AB = B and BA =A, then A
2
+ B
2
=
Choose an answer
2 AB
2 BA
A + B
AB
Previous
Skip
Next
Question # 7
sin (
α -
β
)=
Choose an answer
sin
α
cos
β
- cos
α
sin
β
sin
α
cos
β
+ cos
α
sin
β
sin
α
cos
α
- cos
β
sin
β
sin
α
cos
α
- cos
β
sin
β
Previous
Skip
Next
Question # 8
For f(x) = x2, what is the value of f(a) +f (-a) in terms of a?
Choose an answer
3a2
2a2
2a
-7a
Previous
Skip
Next
Question # 9
A quadratic equation has two
Choose an answer
roots
degree
variables
constants
Previous
Skip
Next
Question # 10
A sequence whose reciprocal is an A.P is called
Choose an answer
Oscillator
H.P
G.P
None of these
Previous
Skip
Next
Question # 11
A stationary point x is a relative exterma of y= f(x) is
Choose an answer
f′′ (x) > 0
f′′ (x) < 0
f′′ (x) ≠ 0
f′′(x) = 0
Previous
Skip
Next
Question # 12
Choose an answer
a
x
a
x
In a
Previous
Skip
Next
Question # 13
Choose an answer
Previous
Skip
Next
Question # 14
The st. lines whose direction cosines satisfy al + bm + cn = 0, fmn + gnl + hlm=0 are perpendicular if
Choose an answer
Previous
Skip
Next
Question # 15
Choose an answer
Previous
Skip
Next
Question # 16
If f (x) = |x|, then (0,0) is the
Choose an answer
Critical point
Inflection point
Stationary point
None of these
Previous
Skip
Next
Question # 17
For trival solution |A| is
Choose an answer
A
|A| = 0
A = 0
|A|≠ 0
Previous
Skip
Next
Question # 18
Choose an answer
Previous
Skip
Next
Question # 19
Choose an answer
1
2
0
4
Previous
Skip
Next
Question # 20
Choose an answer
Previous
Skip
Next
Question # 21
{1, 2, 3, 4,.....} is set of ______
Choose an answer
Natural numbers
Whole numbers
Integers
Rational numbers
Previous
Skip
Next
Question # 22
Choose an answer
Previous
Skip
Next
Question # 23
Choose an answer
None of these
Previous
Skip
Next
Question # 24
The set of the first elements of the orders pairs forming a relation is called its
Choose an answer
Relation in B
Range
Domain
Relation In A
Previous
Skip
Next
Question # 25
A function from A to B is denoted by
Choose an answer
f: A→ B
f: B → A
f: → A :B
f → A→ B
Previous
Skip
Next
Question # 26
nCn-r is equal to
Choose an answer
n!
n-1Cr
nCr
None of these
Previous
Skip
Next
Question # 27
Choose an answer
None of these
Previous
Skip
Next
Question # 28
Choose an answer
15/23
7/15
7/8
15/7
Previous
Skip
Next
Question # 29
If f(x) = x
2
then f(-2) is
Choose an answer
-2
2
4
-4
Previous
Skip
Next
Question # 30
Choose an answer
none of these
Previous
Skip
Next
Question # 31
Choose an answer
none of these
Previous
Skip
Next
Back
