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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 u = 2ai + i - k and v = i +ai + 4k are perpendicular then a =
Question # 3
The modulus of a vector i-i+ k is:
Question # 4
If aand bare two vectors then a+b =
Question # 5
I f a =5i + 2j, then|a| =
Question # 6
The vector i = [1,0] is called unit vector along:
Question # 7
Vector additon is:
Question # 8
If the angle between two vectors u and v is 0 orπ, then the vectors u and v are:
Question # 9
The vector k = [0,0,1] is called unit vector along:
Question # 10
The modulus of 12-5i is:
Top Scorers Of ECAT (Pre-Eng) Mathematics MCQ's Test For Chapter 23 MCQ`s Test
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ECAT Class Mathematics Chapter 23 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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
|
| 2 | The positive real number which is the measure of the length of a vector is called the |
A. Unit vector
B. Modulus
C. Inverse
D. None of these
|
| 3 | If|a| =|b| = |a+b|=1, then|a-b| is equal to: |
A. 1
B. √3
C. √2
D. 7
|
| 4 | If|a| =|b|=|a + b|=1, then|a+ b| = 5, then|a-b| = |
A. 4
B. 6
C. 5
D. 3
|
| 5 | If aand bare two vectors then a+b = |
A. b + a
B. b - a
C. ab
D. a^ b
|
| 6 | The magnitude of vector a=i-3j+5k is: |
A. 3
B. √35
C. √17
D. √35
|
| 7 | The modulus of 12-5i is: |
A. 7
B. 13
C. √7
D. 119
|
| 8 | 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
|
| 9 | Vector i = |
A. [1,0]
B. [0,1,0]
C. [0,0,1]
D. None of these
|
| 10 | O (0,0)is called: |
A. Position vector
B. Free vector
C. Unite vector
D. Null vector
|
Test Questions
