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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 vector k = [0,0,1] is called unit vector along:
Question # 2
If|a| =|b|=|a + b|=1, then|a+ b| = 5, then|a-b| =
Question # 3
The modulus of a vector i-i+ k 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
Vector i =
Question # 7
If|a| =|b| = |a+b|=1, then|a-b| is equal to:
Question # 8
If aand bare two vectors then a+b =
Question # 9
If the angle between two vectors u and v is 0 orπ, then the vectors u and v are:
Question # 10
O (0,0)is called:
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ECAT Mathematics Chapter 23 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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
|
| 2 | If|a| =|b| = |a+b|=1, then|a-b| is equal to: |
A. 1
B. √3
C. √2
D. 7
|
| 3 | The magnitude of vector a 2i-7j is |
A. √23
B. √43
C. 3
D. √53
|
| 4 | 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
|
| 5 | If aand bare two vectors then a+b = |
A. b + a
B. b - a
C. ab
D. a^ b
|
| 6 | 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
|
| 7 | The modulus of a vector i-i+ k is: |
A. √3
B. 1
C. √2
D. ∞
|
| 8 | If a=5j + 2j,b=2i -3j, then|a+2b|= |
A. √21
B. √97
C. √39
D. None of these
|
| 9 | If u =2i +pi + 5k and v = 3i + i +pk are perpendicular , then p= |
A. 1
B. 2
C. -1
D. -3
|
| 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