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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
a ______quantity is one that possesses both magnitude and direction.
Question # 2
The vector k = [0,0,1] is called unit vector along:
Question # 3
If m and n be two scalars, then (m+n) g =
Question # 4
If a,b = 0 then
Question # 5
If aand bare two vectors then a+b =
Question # 6
The positive real number which is the measure of the length of a vector is called the
Question # 7
If the sum of two unit vectors is a unit vector the the magnitude of their difference is
Question # 8
If u =[3,-4],then modulus of uis:
Question # 9
Vector additon is:
Question # 10
If|a| =|b| = |a+b|=1, then|a-b| is equal to:
Top Scorers Of ECAT (Pre-Eng) Mathematics MCQ's Test For Chapter 23 MCQ`s Test
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ECAT Mathematics Chapter 23 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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
|
| 2 | If a=5j + 2j,b=2i -3j, then|a+2b|= |
A. √21
B. √97
C. √39
D. None of these
|
| 3 | 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
|
| 4 | If u = xi + yj, then|u| |
A. x2 + y2
B. (x2 +y2)2
C. x2-y2
D. √(x2+y2)
|
| 5 | If u = 2ai + i - k and v = i +ai + 4k are perpendicular then a = |
A. 4
B. 1/2
C. 3
D. 4/3
|
| 6 | If|a| =|b| = |a+b|=1, then|a-b| is equal to: |
A. 1
B. √3
C. √2
D. 7
|
| 7 | Vector i = |
A. [1,0]
B. [0,1,0]
C. [0,0,1]
D. None of these
|
| 8 | The magnitude of vector a 2i-7j is |
A. √23
B. √43
C. 3
D. √53
|
| 9 | 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
|
| 10 | If c = 2i+j+k and d= -1 + 4j +2k, then [c-d]= |
A. √7
B. √41
C. √19
D. √(2&7)
|
Test Questions
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