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ECAT Pre General Science Mathematics Chapter 24 Vectors Online Test MCQs With Answers
Question # 1
Choose an answer
none of these
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Question # 2
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A,. B, C are coincident
A, B, C are collinear
Both A and B
None of these
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Question # 3
If θ be angle between u,v and u,v determine the sides of a triangle then the third side opposite to angle θ has length
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|u+v|
|u|+|v|
|u-v|
|u|-|v|
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Question # 4
Which of the following is a scalar.
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force
frequency
weight
acceleration
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Question # 5
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none of these
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Question # 6
The zero vector is
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[0, 0, 0]
[1, 1, 1]
[0, 1, 0]
[0, 0, 1]
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Question # 7
If the vector 2i + 4j - 7k and 2i + 6j + xk are perpendicular then x = ?
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0
2
4
7
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Question # 8
Which of the following is a vector.
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distance
temperature
energy
acceleration
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Question # 9
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1
0
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Question # 10
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Question # 11
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[0, 0, 0]
[1, 0, 0]
[0, 1, 0]
[0, 0, 1]
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Question # 12
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 # 13
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Question # 14
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Question # 15
If 2 and 2 are x and y components of vector then its angle with x-axis is
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30
°
45
°
60
°
90
°
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Question # 16
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direction ratios
direction cosines
direction angles
none of these
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Question # 17
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none of these
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Question # 18
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A
0
Unit vector
None
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Question # 19
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Question # 20
Which of the following us a scalar
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displacement
velocity
acceleration
density
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Question # 21
The position vector of a point (x, y) in xy plane is
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none of these
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Question # 22
Which of the following is a vector
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length
momentum
volume
speed
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Question # 23
If |αi + (α+1)j +2k| =3 then value of α is
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1,2
-1,-2
1,-2
-1,2
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Question # 24
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Question # 25
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Question # 26
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[0, 0, 0]
[1, 0, 0]
[0, 1, 0]
[0, 0, 1]
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Question # 27
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Free vector
Null vector
Unit vector
None of these
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Question # 28
If uv= Projuv then
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Uandvare parallel
vis a unit vector
Uis a unit vector
Both b and c
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Question # 29
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Question # 30
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0
1
-1
None
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Question # 31
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parallel vectors
perpendicular vectors
concurrent vectors
collinear vectors
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