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Mathematics ECAT Pre Engineering Chapter 24 Vectors Online Test MCQs With Answers
Question # 1
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Question # 2
[i,j,k]
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0
2
1
-2
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Question # 3
Which of the following is not a unit vector
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[1, 1, 1]
[0, 1, 0]
[0, 0, 1]
[1, 0, 0]
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Question # 4
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none of these
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Question # 5
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Question # 6
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1
0
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Question # 7
Which of the following is a vector.
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work
time
density
electric field
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Question # 8
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 # 9
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none of these
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Question # 10
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Question # 11
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 # 12
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Question # 13
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0
1
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Question # 14
Which of the following represents a vector
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(x, y)
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Question # 15
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Question # 16
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Question # 17
If the angle between two vectors with magnitude 6 and 2 is 60° when their scalar product is
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12
6
3
0
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Question # 18
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Question # 19
Which of the following is a vector
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length
momentum
volume
speed
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Question # 20
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Question # 21
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Question # 22
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Question # 23
If a,b,c are unit vectors then |a + b|2 +|a - b|2
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4
8ab
9cos
4(a,b)
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Question # 24
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Question # 25
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1
0
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Question # 26
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 # 27
If a,b c are sides of a triangle taken in order then a x b =
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b x c
b x a
cxa
Both a & b
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Question # 28
If a +b +c =0 then which of the following is true
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a =b =c =0
a,b =b,c =c,a
a xb=b xc =c xa
None
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Question # 29
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 # 30
Which of the following is a scalar
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weight
force
speed
momentum
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Question # 31
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