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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 then
Question # 2
Vector additon is:
Question # 3
If c = 2i+j+k and d= -1 + 4j +2k, then [c-d]=
Question # 4
The positive real number which is the measure of the length of a vector is called the
Question # 5
If the sum of two unit vectors is a unit vector the the magnitude of their difference is
Question # 6
If the angle between two vectors u and v is 0 orπ, then the vectors u and v are:
Question # 7
If a = [1,4,3] and B= [2,-1,5] athen the mid point M of AB is:
Question # 8
The vector i = [1,0] is called unit vector along:
Question # 9
If u =2i +pi + 5k and v = 3i + i +pk are perpendicular , then p=
Question # 10
If G is the centroid of the triangle, then GA +GB+GC=
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ECAT Mathematics Chapter 23 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | If u = xi + yj, then|u| |
A. x2 + y2
B. (x2 +y2)2
C. x2-y2
D. √(x2+y2)
|
| 2 | If aand bare two vectors then a+b = |
A. b + a
B. b - a
C. ab
D. a^ b
|
| 3 | The magnitude of vector a=i-3j+5k is: |
A. 3
B. √35
C. √17
D. √35
|
| 4 | 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
|
| 5 | O (0,0)is called: |
A. Position vector
B. Free vector
C. Unite vector
D. Null vector
|
| 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 G is the centroid of the triangle, then GA +GB+GC= |
A. 0
B. 1
C. -1
D. 3
|
| 8 | I f a =5i + 2j, then|a| = |
A. √13
B. √7
C. 1/√13
D. √29
|
| 9 | 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
|
| 10 | If|a| =|b| = |a+b|=1, then|a-b| is equal to: |
A. 1
B. √3
C. √2
D. 7
|
Test Questions
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