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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 = 2i +2j, b= 3i -j and c=4i +5j, the 3b -a-2c =
Question # 2
If a≠ , b≠ 0 and|a=b|=|a-b|,then vectors a and b are:
Question # 3
If c = 2i+j+k and d= -1 + 4j +2k, then [c-d]=
Question # 4
Vector i =
Question # 5
If u = xi + yj, then|u|
Question # 6
If u =[3,-4],then modulus of uis:
Question # 7
The positive real number which is the measure of the length of a vector is called the
Question # 8
If a,b = 0 then
Question # 9
The angle between the vectors u = [-3 , 5] and v = [6 , -2] is:
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 modulus of a vector i-i+ k is: |
A. √3
B. 1
C. √2
D. ∞
|
| 2 | If|a| =|b| = |a+b|=1, then|a-b| is equal to: |
A. 1
B. √3
C. √2
D. 7
|
| 3 | a ______quantity is one that possesses both magnitude and direction. |
A. Scalar
B. Vector
C. Segment
D. None of these
|
| 4 | If u =[3,-4],then modulus of uis: |
A. 5
B. 5i
C. -5
D. √5
|
| 5 | The vector k = [0,0,1] is called unit vector along: |
A. x -axis
B. y - axis
C. z- axis
D. None of these
|
| 6 | If u = xi + yj, then|u| |
A. x2 + y2
B. (x2 +y2)2
C. x2-y2
D. √(x2+y2)
|
| 7 | The magnitude of vector a 2i-7j is |
A. √23
B. √43
C. 3
D. √53
|
| 8 | 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
|
| 9 | The magnitude of vector a=i-3j+5k is: |
A. 3
B. √35
C. √17
D. √35
|
| 10 | 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
|
Test Questions