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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≠ , b≠ 0 and|a=b|=|a-b|,then vectors a and b are:
Question # 2
If|a| =|b| = |a+b|=1, then|a-b| is equal to:
Question # 3
The magnitude of vector a 2i-7j is
Question # 4
If a=5j + 2j,b=2i -3j, then|a+2b|=
Question # 5
If a = [1,4,3] and B= [2,-1,5] athen the mid point M of AB is:
Question # 6
If c = 2i+j+k and d= -1 + 4j +2k, then [c-d]=
Question # 7
Vector additon is:
Question # 8
If u = xi + yj, then|u|
Question # 9
a ______quantity is one that possesses both magnitude and direction.
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 | Vector additon is: |
A. Commutative
B. Associative
C. Commutative and Associative
D. None of these
|
| 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 = xi + yj, then|u| |
A. x2 + y2
B. (x2 +y2)2
C. x2-y2
D. √(x2+y2)
|
| 4 | The magnitude of vector a 2i-7j is |
A. √23
B. √43
C. 3
D. √53
|
| 5 | The positive real number which is the measure of the length of a vector is called the |
A. Unit vector
B. Modulus
C. Inverse
D. None of these
|
| 6 | If u =2i +pi + 5k and v = 3i + i +pk are perpendicular , then p= |
A. 1
B. 2
C. -1
D. -3
|
| 7 | If|a| =|b|=|a + b|=1, then|a+ b| = 5, then|a-b| = |
A. 4
B. 6
C. 5
D. 3
|
| 8 | If u = 2ai + i - k and v = i +ai + 4k are perpendicular then a = |
A. 4
B. 1/2
C. 3
D. 4/3
|
| 9 | 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
|
| 10 | If a = [1,4,3] and B= [2,-1,5] athen the mid point M of AB is: |
A. [1,1,1.5]
B. [2,2,1.5]
C. [1.5,1.5,4]
D. None of these
|
Test Questions
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