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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
Vector i =
Question # 2
The angle between the vectors u =2i - i + k and v = -i + i is:
Question # 3
If the sum of two unit vectors is a unit vector the the magnitude of their difference is
Question # 4
If u =[3,-4],then modulus of uis:
Question # 5
The angle between the vectors u = [-3 , 5] and v = [6 , -2] is:
Question # 6
If|a| =|b| = |a+b|=1, then|a-b| is equal to:
Question # 7
The positive real number which is the measure of the length of a vector is called the
Question # 8
If|a| =|b|=|a + b|=1, then|a+ b| = 5, then|a-b| =
Question # 9
O (0,0)is called:
Question # 10
If a,b = 0 then
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ECAT Mathematics Chapter 23 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | If c = 2i+j+k and d= -1 + 4j +2k, then [c-d]= |
A. √7
B. √41
C. √19
D. √(2&7)
|
| 2 | 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
|
| 3 | If G is the centroid of the triangle, then GA +GB+GC= |
A. 0
B. 1
C. -1
D. 3
|
| 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 | I f a =5i + 2j, then|a| = |
A. √13
B. √7
C. 1/√13
D. √29
|
| 6 | Vector additon is: |
A. Commutative
B. Associative
C. Commutative and Associative
D. None of these
|
| 7 | 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
|
| 8 | The magnitude of vector a=i-3j+5k is: |
A. 3
B. √35
C. √17
D. √35
|
| 9 | O (0,0)is called: |
A. Position vector
B. Free vector
C. Unite vector
D. Null vector
|
| 10 | If u = xi + yj, then|u| |
A. x2 + y2
B. (x2 +y2)2
C. x2-y2
D. √(x2+y2)
|
Test Questions
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