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Online Tests
Mathematics ECAT Pre Engineering Online Test MCQs With Answers
Question # 1
The sum of the focal distance from any point on the ellipse 9x2 +16y2 =144 is
Choose an answer
32
16
18
8
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Question # 2
The multiplicative inverse of 0 is
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1
-1
0
Does not exist
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Question # 3
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2
-2
none of these
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Question # 4
The distance of the point (a, b) from x-axis is
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a
b
a + b
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Question # 5
Which of the following is the subset of all sets?
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Question # 6
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 # 7
Every prime number is also
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Rational number
Even number
Irrational number
Multiple of two numbers
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Question # 8
Power set of difference set N-W is
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Empty set
Infinite set
Singleton set
{0,∅}
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Question # 9
How many arrangements of the letters of the word PAKISTAN cab be made
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Question # 10
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30°
45°
60°
90°
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Question # 11
Through how many radians does the hour hand of a clock turn in one hour
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Question # 12
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One-to-one and onto
One-to-one but not on to
Onto but not one-to-one
Neither one-to-one nor onto
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Question # 13
If distance of (a,b) from y-axis is 2 then
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a = 2
b = 2
a = b
a = 4
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Question # 14
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Question # 15
If sided of𝜟ABC are 16,20,and 33, then the value of the greatests angle to
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150𝜊 20'
132𝜊 35'
101𝜊 25'
160𝜊 50'
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Question # 16
If ax + bx + c =0 is satisfied by every value of x,then
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b = 0,c = 0
c = 0
b = 0
a = b = c = 0
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Question # 17
w
15
= ______
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0
1
w
w
2
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Question # 18
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8
4
64
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Question # 19
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Question # 20
The physical quantity which possesses both magnitude and direction is called a
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scalar
vector
constant
none of these
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Question # 21
The identity element with respect to subtraction is
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0
1
-1
Does not exist
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Question # 22
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Question # 23
2/9,5/7∈ R,(2│9)(5│7)=10/63∈R this property is called
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Associative property
Identity property
Commutative property
Closure property w.r.t multiplication
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Question # 24
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parallel vectors
perpendicular vectors
concurrent vectors
collinear vectors
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Question # 25
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Question # 26
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3x
2
+ 2
3x
2
+ 2x + 3
x
3
+ x
2
none of these
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Question # 27
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Question # 28
The exact value of cos
-1
(-1) + cos
-1
(1) =
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π
-π
π/2
π/3
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Question # 29
The equation of the sphere thro' the origin and making intercepts a, b, c on co-ordinate axes is
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x
2
+ y
2
+ z
2
+ ax + by + cz = 0
x
2
+ y
2
+ z
2
- 2ax - 2 by - 2 cz = 0
x
2
+ y
2
+ z
2
= a + b + c
x
2
+ y
2
+ z
2
- ax - by - cz =0
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Question # 30
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Question # 31
The 7th term of the A.P 7,11,15,is
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24
31
26
23
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