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ECAT Pre General Science Mathematics Chapter 24 Vectors Online Test MCQs With Answers
Question # 1
Choose an answer
none of these
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Question # 2
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0
90°
180°
360°
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Question # 3
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1
0
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Question # 4
[i,j,k]
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0
2
1
-2
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Question # 5
If the angle between two vectors with magnitude 2 and 15 is 30
°
then their scalar product is
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15
30
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Question # 6
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Question # 7
Which of the following us a scalar
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displacement
velocity
acceleration
density
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Question # 8
Which of the following is a vector.
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work
time
density
electric field
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Question # 9
If C is the mid point of AB and P is any point outside AB, then
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Question # 10
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 # 11
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none of these
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Question # 12
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0
1
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Question # 13
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Question # 14
If 2 and 2 are x and y components of vector then its angle with x-axis is
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30
°
45
°
60
°
90
°
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Question # 15
The unit vector along z-axis is
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none of these
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Question # 16
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 # 17
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 # 18
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Question # 19
Which of the following is a vector.
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energy
force
work
power
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Question # 20
The angle between the vectors 3i + j - k and 2i - j + k is
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Question # 21
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none of these
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Question # 22
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parallel vectors
perpendicular vectors
concurrent vectors
collinear vectors
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Question # 23
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 # 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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Free vector
Null vector
Unit vector
None of these
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Question # 28
The position vector of the point P(a, b, c) is
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Question # 29
3j . k x i
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0
1
3
9
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Question # 30
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[0, 0, 0]
[1, 0, 0]
[0, 1, 0]
[0, 0, 1]
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