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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 c = 2i+j+k and d= -1 + 4j +2k, then [c-d]=
Question # 2
Vector i =
Question # 3
I f a =5i + 2j, then|a| =
Question # 4
If u =2i +pi + 5k and v = 3i + i +pk are perpendicular , then p=
Question # 5
a ______quantity is one that possesses both magnitude and direction.
Question # 6
If a = [1,4,3] and B= [2,-1,5] athen the mid point M of AB is:
Question # 7
If a = 2i +2j, b= 3i -j and c=4i +5j, the 3b -a-2c =
Question # 8
If u = 2ai + i - k and v = i +ai + 4k are perpendicular then a =
Question # 9
The vector k = [0,0,1] is called unit vector along:
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 u = xi + yj, then|u| |
A. x2 + y2
B. (x2 +y2)2
C. x2-y2
D. √(x2+y2)
|
| 3 | 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
|
| 4 | a ______quantity is one that possesses both magnitude and direction. |
A. Scalar
B. Vector
C. Segment
D. None of these
|
| 5 | If u =2i +pi + 5k and v = 3i + i +pk are perpendicular , then p= |
A. 1
B. 2
C. -1
D. -3
|
| 6 | 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
|
| 7 | If a=5j + 2j,b=2i -3j, then|a+2b|= |
A. √21
B. √97
C. √39
D. None of these
|
| 8 | 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
|
| 9 | If u =[3,-4],then modulus of uis: |
A. 5
B. 5i
C. -5
D. √5
|
| 10 | 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
|
Test Questions
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