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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 the angle between two vectors u and v is 0 orπ, then the vectors u and v are:
Question # 2
Vector additon is:
Question # 3
If|a| =|b|=|a + b|=1, then|a+ b| = 5, then|a-b| =
Question # 4
If a=5j + 2j,b=2i -3j, then|a+2b|=
Question # 5
If a,b = 0 then
Question # 6
If the sum of two unit vectors is a unit vector the the magnitude of their difference is
Question # 7
a ______quantity is one that possesses both magnitude and direction.
Question # 8
If m and n be two scalars, then (m+n) g =
Question # 9
The magnitude of vector a 2i-7j is
Question # 10
If a≠ , b≠ 0 and|a=b|=|a-b|,then vectors a and b are:
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ECAT Mathematics Chapter 23 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The vector k = [0,0,1] is called unit vector along: |
A. x -axis
B. y - axis
C. z- axis
D. None of these
|
| 2 | If a,b = 0 then |
A. a |b
B. a||b
C. a = b
D. None
|
| 3 | 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
|
| 4 | If a = [1,4,3] and B= [2,-1,5] athen the mid point M of AB is: |
A. [1,1,1.5]
B. [2,2,1.5]
C. [1.5,1.5,4]
D. None of these
|
| 5 | 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
|
| 6 | If a=5j + 2j,b=2i -3j, then|a+2b|= |
A. √21
B. √97
C. √39
D. None of these
|
| 7 | If aand bare two vectors then a+b = |
A. b + a
B. b - a
C. ab
D. a^ b
|
| 8 | 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
|
| 9 | If|a| =|b|=|a + b|=1, then|a+ b| = 5, then|a-b| = |
A. 4
B. 6
C. 5
D. 3
|
| 10 | 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
|
Test Questions
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