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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 magnitude of vector a 2i-7j is
Question # 2
O (0,0)is called:
Question # 3
If c = 2i+j+k and d= -1 + 4j +2k, then [c-d]=
Question # 4
If a = [1,4,3] and B= [2,-1,5] athen the mid point M of AB is:
Question # 5
The modulus of 12-5i is:
Question # 6
The vector i = [1,0] is called unit vector along:
Question # 7
Vector additon is:
Question # 8
If a≠ , b≠ 0 and|a=b|=|a-b|,then vectors a and b are:
Question # 9
If u = 2ai + i - k and v = i +ai + 4k are perpendicular then a =
Question # 10
If u =[3,-4],then modulus of uis:
Top Scorers Of ECAT (Pre-Eng) Mathematics MCQ's Test For Chapter 23 MCQ`s Test
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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 | The magnitude of vector a=i-3j+5k is: |
A. 3
B. √35
C. √17
D. √35
|
| 3 | If c = 2i+j+k and d= -1 + 4j +2k, then [c-d]= |
A. √7
B. √41
C. √19
D. √(2&7)
|
| 4 | 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
|
| 5 | If|a| =|b| = |a+b|=1, then|a-b| is equal to: |
A. 1
B. √3
C. √2
D. 7
|
| 6 | If a = 2i +2j, b= 3i -j and c=4i +5j, the 3b -a-2c = |
A. -i -15j
B. i-15j
C. i-3j
D. None of these
|
| 7 | 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
|
| 8 | If u = xi + yj, then|u| |
A. x2 + y2
B. (x2 +y2)2
C. x2-y2
D. √(x2+y2)
|
| 9 | If G is the centroid of the triangle, then GA +GB+GC= |
A. 0
B. 1
C. -1
D. 3
|
| 10 | 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
|
Test Questions
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