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Mathematics ECAT Pre Engineering Online Test MCQs With Answers
Question # 1
3/2 is
Choose an answer
An irrational number
Whole number
A positive integer
A rational number
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Question # 2
If #n = (n-5)
2
+ 5, then find #3 x #4.
Choose an answer
54
12
4
9
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Question # 3
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π
/ 4
π
/ 6
π
/ 3
2π
/ 3
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Question # 4
The point where the axis meets the parabola is called
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Directrix
Foucu
Chord
Vertix
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Question # 5
Three dice are thrown together. The probability of getting a total of at least 6 is
Choose an answer
103 / 108
10 / 216
93 / 108
None of these
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Question # 6
Choose an answer
Associative law of addition
Commutative law of addition
Additive identity
Closure law of addition
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Question # 7
The set of complex numbers forms a group under the binary operation of
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Addition
Multiplication
Division
Subtraction
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Question # 8
The solution of the quadratic equation x2 -7x + 10=0, is
Choose an answer
2
5
2,5
7
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Question # 9
Which of the following is a scalar
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weight
force
speed
momentum
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Question # 10
In quadratic equation, if the replacement of y with -y leaves the equation unchanged, then the graph is
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Straight line
Circle
Hyperbola
Symmetric w.r.t.0
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Question # 11
Period of Sine and Cosine function is
Choose an answer
π
2
π
-
π
-2
π
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Question # 12
Domain of sin
θ
is
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Set of real numbers
Set of complex numbers
Set of natural numbers
Set of even numbers
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Question # 13
∀a,b, c ε R,a +c = b + c = > a = b
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Reflexive property
Symmetric property
Cancellations property w.r.t. addition
Transitive property
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Question # 14
Additive inverse of - a - b is
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a
-a + b
a - b
a + b
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Question # 15
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Commutative law of multiplication
Closure law of multiplication
Associative law of multiplication
Multiplication identity
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Question # 16
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Question # 17
If the sum of co-efficient in the expansion of (a+b)
n
is 4096, then the greatest co-efficient in the expansion is
Choose an answer
1594
792
924
2924
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Question # 18
The approximate increase in the area of a circular disc if its diameter increased form 44cm to 44.4cm is
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0.4cm
8.8πcm
17.6 πcm
35.2πcm
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Question # 19
Choose an answer
none of these
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Question # 20
A die is thrown 100 times. If getting an odd number is considered a success, the variance of the number of successes is
Choose an answer
50
25
10
100
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Question # 21
Choose an answer
additive property
multiplicative property
additive identity
multiplicative identity
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Question # 22
Choose an answer
2x + 2y
4 - x
2
-x/y
x/y
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Question # 23
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π / 3
π / 4
π / 2
π
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Question # 24
We solve the system of non-homogeneous linear equations by
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a and b
b and c
c and a
a,b and c
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Question # 25
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 # 26
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 # 27
The angle of depression of the point at a distance 70 meters from the foot of the tower from the top of the tower is 45
𝜊
.The height of the tower is
Choose an answer
37m
97m
101m
70m
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Question # 28
Express the perimeter P of square as a function of its area A?
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P = 4√A
P =√A
P = 2A
P =π√A
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Question # 29
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Question # 30
Choose an answer
(x
3
- 3x
2
)
8
+ c
3x
2
- 6x + c
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Question # 31
The order axioms are satisfied by set of
Choose an answer
C
C and R
R
None of these
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