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MCQ's Test For ECAT (Pre-Eng) Mathematics MCQ's Test For Chapter 23
Try The MCQ's Test For ECAT (Pre-Eng) Mathematics MCQ's Test For Chapter 23
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Total Questions10
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Time Allowed10
ECAT (Pre-Eng) Mathematics MCQ's Test For Chapter 23
00:00
Question # 1
I f a =5i + 2j, then|a| =
Question # 2
The angle between the vectors u =2i - i + k and v = -i + i is:
Question # 3
Vector i =
Question # 4
The vector i = [1,0] is called unit vector along:
Question # 5
If|a| =|b| = |a+b|=1, then|a-b| is equal to:
Question # 6
a ______quantity is one that possesses both magnitude and direction.
Question # 7
If a = [1,4,3] and B= [2,-1,5] athen the mid point M of AB is:
Question # 8
The vector k = [0,0,1] is called unit vector along:
Question # 9
If the angle between two vectors u and v is 0 orπ, then the vectors u and v are:
Question # 10
If the sum of two unit vectors is a unit vector the the magnitude of their difference is
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ECAT Mathematics Chapter 23 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | If u = xi + yj, then|u| |
A. x2 + y2
B. (x2 +y2)2
C. x2-y2
D. √(x2+y2)
|
| 2 | If the angle between two vectors u and v is 0 orπ, then the vectors u and v are: |
A. Orthogonal
B. Collinear
C. Perpendicular
D. None of these
|
| 3 | If u =2i +pi + 5k and v = 3i + i +pk are perpendicular , then p= |
A. 1
B. 2
C. -1
D. -3
|
| 4 | a ______quantity is one that possesses both magnitude and direction. |
A. Scalar
B. Vector
C. Segment
D. None of these
|
| 5 | If aand bare two vectors then a+b = |
A. b + a
B. b - a
C. ab
D. a^ b
|
| 6 | If m and n be two scalars, then (m+n) g = |
A. 0
B. m+n
C. m▁a+n▁a
D. ma - m▁a
|
| 7 | The vector k = [0,0,1] is called unit vector along: |
A. x -axis
B. y - axis
C. z- axis
D. None of these
|
| 8 | The angle between the vectors u = [-3 , 5] and v = [6 , -2] is: |
A. π/2
B. -3π/2
C. π
D. None of these
|
| 9 | If a≠ , b≠ 0 and|a=b|=|a-b|,then vectors a and b are: |
A. Parallel to each other
B. Perpendicular to each other
C. Inclined at 60o
D. neither parallel nor perpendicular
|
| 10 | If a = 2i +2j, b= 3i -j and c=4i +5j, the 3b -a-2c = |
A. -i -15j
B. i-15j
C. i-3j
D. None of these
|
Test Questions
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