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ECAT Pre General Science Mathematics Chapter 24 Vectors Online Test MCQs With Answers
Question # 1
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parallel vectors
perpendicular vectors
concurrent vectors
collinear vectors
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Question # 2
A vector with magnitude one is called
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constant vector
unit vector
zero vector
null vector
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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 the point P(a, b, c) is
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Question # 5
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 # 6
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Question # 7
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Question # 8
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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 # 9
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Question # 10
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A
0
Unit vector
None
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Question # 11
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Question # 12
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Question # 13
If a2 = b2 then
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a = b
a+b= 1
|a+b| =0
None
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Question # 14
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none of these
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Question # 15
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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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1
0
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Question # 19
The position vector of a point (x, y) in xy plane is
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none of these
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Question # 20
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Question # 21
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 # 22
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none of these
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Question # 23
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Question # 24
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Question # 25
Which of the following is a vector.
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work
time
density
electric field
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Question # 26
The zero vector is regarded to be parallel to
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Every vector
Is some cases
Both a,b
None
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Question # 27
Which of the following represents a vector
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(x, y)
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Question # 28
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 # 29
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Question # 30
The physical quantity which can be specified by a number alongwith unit is called a
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scalar
vector
constant
none of these
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Question # 31
If Projvu = Projuv, then
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Uand vare parallel
|u|=|v|
Uandvre perpendicular
One ofuorv
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Question # 32
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none of these
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