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Mathematics ECAT Pre Engineering Chapter 24 Vectors Online Test MCQs With Answers
Question # 1
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 # 2
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perpendicular vectors
concurrent vectors
parallel vectors
none of these
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Question # 3
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 # 4
A vector of magnitude zero is called
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Position vector
Null vector
Free vector
None of these
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Question # 5
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Question # 6
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Question # 7
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25
16
5
0
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Question # 8
For two vector a and b, a+b = _______
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a b
b+a
b-a
None
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Question # 9
Which of the following is a vector.
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distance
temperature
energy
acceleration
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Question # 10
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 # 11
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A
0
Unit vector
None
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Question # 12
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 # 13
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none of these
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Question # 14
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Question # 15
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none of these
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Question # 16
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 # 17
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Question # 18
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a
1
+ a
2
a
2
1
+ a
2
2
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Question # 19
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Question # 20
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Question # 21
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Question # 22
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 # 23
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Question # 24
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none of these
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Question # 25
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[0, 0, 0]
[1, 0, 0]
[0, 1, 0]
[0, 0, 1]
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Question # 26
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[0, 0, 0]
[1, 0, 0]
[0, 1, 0]
[0, 0, 1]
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Question # 27
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1
0
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Question # 28
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Question # 29
The magnitude of a vector can never be
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Zero
Negative
Positive
None of these
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Question # 30
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0
1
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Question # 31
The position vector of any point in space is
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Question # 32
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direction ratios
direction cosines
direction angles
none of these
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