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Mathematics ECAT Pre Engineering Chapter 24 Vectors Online Test MCQs With Answers
Question # 1
u,v,wand u x (v.w) are
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Equal
Parallel
Additive immense of each other
Meaningless
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Question # 2
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none of these
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Question # 3
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direction ratios
direction cosines
direction angles
none of these
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Question # 4
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none of these
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Question # 5
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1
0
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Question # 6
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Question # 7
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none of these
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Question # 8
The number z so that the triangle with vertices A(1,-1,0),B(-2,2,1)and C(0,2,z) is a right triangle with right angle at vertex C
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1,2
-1,-2
2,-1
-2,1
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Question # 9
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Question # 10
For two vector a and b, a+b = _______
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a b
b+a
b-a
None
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Question # 11
Unit vector in the positive direction of x-axis is
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Question # 12
The unit vector along x-axis is
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none of these
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Question # 13
Which of the following is a vector
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length
momentum
volume
speed
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Question # 14
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Question # 15
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Question # 16
The position vector of any point in space is
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Question # 17
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Question # 18
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none of these
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Question # 19
Which of the following is a scalar
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weight
force
speed
momentum
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Question # 20
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Question # 21
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Question # 22
If a force F = 2i + j +3k acts at point (1,-2,2) of a body then the moment of F about a pint lying on the line of action of the force is
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5
Equal to the moment of the force about origin
0
Cannot be found
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Question # 23
A vector with magnitude one is called
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constant vector
unit vector
zero vector
null vector
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Question # 24
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 # 25
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Question # 26
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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 # 27
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Question # 28
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Question # 29
If Projvu = Projuv, then
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Uand vare parallel
|u|=|v|
Uandvre perpendicular
One ofuorv
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Question # 30
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Question # 31
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perpendicular vectors
parallel vectors
concurrent vectors
none of these
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