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Mathematics ECAT Pre Engineering Chapter 24 Vectors Online Test MCQs With Answers
Question # 1
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Question # 2
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Question # 3
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 # 4
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0
1
-1
None
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Question # 5
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perpendicular vectors
parallel vectors
concurrent vectors
none of these
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Question # 6
Which of the following represents a vector
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(x, y)
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Question # 7
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 # 8
If |a x b|2 + (a,b)2 = _____
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|a|2 + |b|2
|a|2- |b|2
|a|2|b|2
None
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Question # 9
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none of these
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Question # 10
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none of these
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Question # 11
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Free vector
Null vector
Unit vector
None of these
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Question # 12
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none of these
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Question # 13
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 # 14
If C is the mid point of AB and P is any point outside AB, then
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Question # 15
The position vector of a point (x, y) in xy plane is
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none of these
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Question # 16
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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 # 17
The ortho center of triangle whose vertices are (0,0)(3,0)(0,4) is
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(0,0)
(1,1)
(2,2)
(3,3)
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Question # 18
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 # 19
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Question # 20
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Question # 21
Which of the following is a vector.
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energy
force
work
power
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Question # 22
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12
6
8
none of these
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Question # 23
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Question # 24
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Question # 25
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Question # 26
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none of these
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Question # 27
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Question # 28
The unit vector along y-axis is
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none of these
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Question # 29
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none of these
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Question # 30
Which of the following us a scalar
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displacement
velocity
acceleration
density
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Question # 31
For two vector a and b, a+b = _______
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a b
b+a
b-a
None
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Question # 32
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