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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
If a=5j + 2j,b=2i -3j, then|a+2b|=
Question # 2
The modulus of 12-5i is:
Question # 3
The magnitude of vector a=i-3j+5k is:
Question # 4
If u = 2ai + i - k and v = i +ai + 4k are perpendicular then a =
Question # 5
The magnitude of vector a 2i-7j is
Question # 6
If G is the centroid of the triangle, then GA +GB+GC=
Question # 7
If the angle between two vectors u and v is 0 orπ, then the vectors u and v are:
Question # 8
Vector additon is:
Question # 9
The positive real number which is the measure of the length of a vector is called the
Question # 10
a ______quantity is one that possesses both magnitude and direction.
Top Scorers Of ECAT (Pre-Eng) Mathematics MCQ's Test For Chapter 23 MCQ`s Test
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ECAT Mathematics Chapter 23 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | If a,b = 0 then |
A. a |b
B. a||b
C. a = b
D. None
|
| 2 | a ______quantity is one that possesses both magnitude and direction. |
A. Scalar
B. Vector
C. Segment
D. None of these
|
| 3 | If u =[3,-4],then modulus of uis: |
A. 5
B. 5i
C. -5
D. √5
|
| 4 | The vector i = [1,0] is called unit vector along: |
A. x-axis
B. y - axis
C. z- axis
D. Botha a and y-axis
|
| 5 | The magnitude of vector a=i-3j+5k is: |
A. 3
B. √35
C. √17
D. √35
|
| 6 | Vector i = |
A. [1,0]
B. [0,1,0]
C. [0,0,1]
D. None of these
|
| 7 | If a=5j + 2j,b=2i -3j, then|a+2b|= |
A. √21
B. √97
C. √39
D. None of these
|
| 8 | If the sum of two unit vectors is a unit vector the the magnitude of their difference is |
A. √2
B. √3
C. 1
D. None of these
|
| 9 | If u = 2ai + i - k and v = i +ai + 4k are perpendicular then a = |
A. 4
B. 1/2
C. 3
D. 4/3
|
| 10 | 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
|
Test Questions