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Mathematics ECAT Pre Engineering Chapter 24 Vectors Online Test MCQs With Answers
Question # 1
Projection of vector u along v is
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|v| cosθ
|u| cosθ
|v| sinθ
|u| sinθ
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Question # 2
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Question # 3
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[0, 0, 0]
[1, 0, 0]
[0, 1, 0]
[0, 0, 1]
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Question # 4
The position vector of any point in space is
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Question # 5
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none of these
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Question # 6
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none of these
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Question # 7
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0
1
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Question # 8
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none of these
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Question # 9
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Question # 10
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0
1
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Question # 11
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none of these
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Question # 12
The ortho center of triangle whose vertices are (0,0)(3,0)(0,4) is
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(0,0)
(1,1)
(2,2)
(3,3)
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Question # 13
[i,j,k]
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0
2
1
-2
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Question # 14
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Question # 15
The position vector of a point (x, y) in xy plane is
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none of these
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Question # 16
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none of these
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Question # 17
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l
2
+ m
2
+ n
2
= 0
l
2
- m
2
+ n
2
= 1
l
2
+ m
2
+ n
2
= 1
l
2
+ m
2
- n
2
= 0
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Question # 18
Which of the following is a scalar.
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electric field
magnetic field
weight
mass
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Question # 19
Which of the following represents a vector
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(x, y)
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Question # 20
Which of the following is a vector.
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distance
temperature
energy
acceleration
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Question # 21
The area of the rhombus whose vertices are A(0,0),B(2,1),C(3,3),D(1,2) is
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36 square units
3 square units
6 square units
18 square units
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Question # 22
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Free vector
Null vector
Unit vector
None of these
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Question # 23
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Question # 24
The unit vector along x-axis is
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none of these
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Question # 25
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Question # 26
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Question # 27
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 # 28
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Question # 29
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[0, 0, 0]
[1, 0, 0]
[0, 1, 0]
[0, 0, 1]
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Question # 30
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direction ratios
direction cosines
direction angles
none of these
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