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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
The vector k = [0,0,1] is called unit vector along:
Question # 2
If u =[3,-4],then modulus of uis:
Question # 3
If u =2i +pi + 5k and v = 3i + i +pk are perpendicular , then p=
Question # 4
Vector additon is:
Question # 5
The modulus of 12-5i is:
Question # 6
If a,b = 0 then
Question # 7
a ______quantity is one that possesses both magnitude and direction.
Question # 8
The angle between the vectors u =2i - i + k and v = -i + i is:
Question # 9
The magnitude of vector a=i-3j+5k is:
Question # 10
The magnitude of vector a 2i-7j is
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ECAT Class Mathematics Chapter 23 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The vector k = [0,0,1] is called unit vector along: |
A. x -axis
B. y - axis
C. z- axis
D. None of these
|
| 2 | The magnitude of vector a 2i-7j is |
A. √23
B. √43
C. 3
D. √53
|
| 3 | If u =[3,-4],then modulus of uis: |
A. 5
B. 5i
C. -5
D. √5
|
| 4 | 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
|
| 5 | If a,b = 0 then |
A. a |b
B. a||b
C. a = b
D. None
|
| 6 | 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
|
| 7 | If u =2i +pi + 5k and v = 3i + i +pk are perpendicular , then p= |
A. 1
B. 2
C. -1
D. -3
|
| 8 | The modulus of a vector i-i+ k is: |
A. √3
B. 1
C. √2
D. ∞
|
| 9 | The angle between the vectors u =2i - i + k and v = -i + i is: |
A. 3π/2
B. 2π/3
C. 5π/6
D. π/3
|
| 10 | If u = xi + yj, then|u| |
A. x2 + y2
B. (x2 +y2)2
C. x2-y2
D. √(x2+y2)
|
Test Questions
