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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 u =2i +pi + 5k and v = 3i + i +pk are perpendicular , then p=
Question # 2
If|a| =|b|=|a + b|=1, then|a+ b| = 5, then|a-b| =
Question # 3
If the sum of two unit vectors is a unit vector the the magnitude of their difference is
Question # 4
Vector i =
Question # 5
If m and n be two scalars, then (m+n) g =
Question # 6
The angle between the vectors u =2i - i + k and v = -i + i is:
Question # 7
The magnitude of vector a=i-3j+5k is:
Question # 8
Vector additon is:
Question # 9
O (0,0)is called:
Question # 10
If a≠ , b≠ 0 and|a=b|=|a-b|,then vectors a and b are:
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ECAT Mathematics Chapter 23 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | O (0,0)is called: |
A. Position vector
B. Free vector
C. Unite vector
D. Null vector
|
| 2 | 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
|
| 3 | I f a =5i + 2j, then|a| = |
A. √13
B. √7
C. 1/√13
D. √29
|
| 4 | The vector k = [0,0,1] is called unit vector along: |
A. x -axis
B. y - axis
C. z- axis
D. None of these
|
| 5 | 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
|
| 6 | Vector additon is: |
A. Commutative
B. Associative
C. Commutative and Associative
D. None of these
|
| 7 | The modulus of 12-5i is: |
A. 7
B. 13
C. √7
D. 119
|
| 8 | 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
|
| 9 | If G is the centroid of the triangle, then GA +GB+GC= |
A. 0
B. 1
C. -1
D. 3
|
| 10 | If u =2i +pi + 5k and v = 3i + i +pk are perpendicular , then p= |
A. 1
B. 2
C. -1
D. -3
|
Test Questions
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