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ECAT Pre General Science Mathematics Chapter 24 Vectors Online Test MCQs With Answers
Question # 1
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Question # 2
Which of the following does not represent absolute value of a vector
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magnitude
length
norm
number
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Question # 3
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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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0
1
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Question # 6
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Question # 7
Which of the vectors have opposite direction?
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Question # 8
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[0, 0, 0]
[1, 0, 0]
[0, 1, 0]
[0, 0, 1]
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Question # 9
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1
0
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Question # 10
If a,b,c are three non-coplanar vector then [a +b,b +c,c +a] = _____
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[a.b.c]
2[a,b,c]
[abc]-2
2[abc]2
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Question # 11
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none of these
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Question # 12
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 # 13
The unit vector along z-axis is
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none of these
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Question # 14
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perpendicular vectors
parallel vectors
concurrent vectors
none of these
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Question # 15
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[0, 0, 0]
[1, 0, 0]
[0, 1, 0]
[0, 0, 1]
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Question # 16
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0
1
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Question # 17
The angle between the vectors 3i + j - k and 2i - j + k is
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Question # 18
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Question # 19
Three points whose position vector a,b,c are collinear
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axb +b x c+ c x a = 0
a,b +b,c +c,a =0
a,|a xc| =0
a+b+c =0
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Question # 20
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 # 21
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perpendicular vectors
concurrent vectors
parallel vectors
none of these
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Question # 22
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 # 23
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Question # 24
The null vector is regarded to be perpendicular to
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Every vector
In some cases
Both a b
None
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Question # 25
3j . k x i
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0
1
3
9
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Question # 26
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Question # 27
If a2 = b2 then
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a = b
a+b= 1
|a+b| =0
None
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Question # 28
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direction ratios
direction cosines
direction angles
none of these
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Question # 29
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Question # 30
Which of the following is a vector
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length
momentum
volume
speed
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Question # 31
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