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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 angle between the vectors u = [-3 , 5] and v = [6 , -2] is:
Question # 2
If u = xi + yj, then|u|
Question # 3
If the angle between two vectors u and v is 0 orπ, then the vectors u and v are:
Question # 4
The positive real number which is the measure of the length of a vector is called the
Question # 5
If m and n be two scalars, then (m+n) g =
Question # 6
If a = 2i +2j, b= 3i -j and c=4i +5j, the 3b -a-2c =
Question # 7
If|a| =|b|=|a + b|=1, then|a+ b| = 5, then|a-b| =
Question # 8
The magnitude of vector a 2i-7j is
Question # 9
O (0,0)is called:
Question # 10
If a=5j + 2j,b=2i -3j, then|a+2b|=
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ECAT 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 | 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 | O (0,0)is called: |
A. Position vector
B. Free vector
C. Unite vector
D. Null vector
|
| 4 | The modulus of 12-5i is: |
A. 7
B. 13
C. √7
D. 119
|
| 5 | a ______quantity is one that possesses both magnitude and direction. |
A. Scalar
B. Vector
C. Segment
D. None of these
|
| 6 | 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
|
| 7 | I f a =5i + 2j, then|a| = |
A. √13
B. √7
C. 1/√13
D. √29
|
| 8 | The modulus of a vector i-i+ k is: |
A. √3
B. 1
C. √2
D. ∞
|
| 9 | If u =[3,-4],then modulus of uis: |
A. 5
B. 5i
C. -5
D. √5
|
| 10 | If aand bare two vectors then a+b = |
A. b + a
B. b - a
C. ab
D. a^ b
|
Test Questions