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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 u = 2ai + i - k and v = i +ai + 4k are perpendicular then a =
Question # 2
If G is the centroid of the triangle, then GA +GB+GC=
Question # 3
The vector k = [0,0,1] is called unit vector along:
Question # 4
If m and n be two scalars, then (m+n) g =
Question # 5
The angle between the vectors u = [-3 , 5] and v = [6 , -2] is:
Question # 6
The vector i = [1,0] is called unit vector along:
Question # 7
If a = [1,4,3] and B= [2,-1,5] athen the mid point M of AB 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 positive real number which is the measure of the length of a vector is called the
Question # 10
The angle between the vectors u =2i - i + k and v = -i + i is:
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ECAT Mathematics Chapter 23 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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
|
| 2 | 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
|
| 3 | If u = xi + yj, then|u| |
A. x2 + y2
B. (x2 +y2)2
C. x2-y2
D. √(x2+y2)
|
| 4 | If G is the centroid of the triangle, then GA +GB+GC= |
A. 0
B. 1
C. -1
D. 3
|
| 5 | 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
|
| 6 | If aand bare two vectors then a+b = |
A. b + a
B. b - a
C. ab
D. a^ b
|
| 7 | If c = 2i+j+k and d= -1 + 4j +2k, then [c-d]= |
A. √7
B. √41
C. √19
D. √(2&7)
|
| 8 | If|a| =|b| = |a+b|=1, then|a-b| is equal to: |
A. 1
B. √3
C. √2
D. 7
|
| 9 | If u =[3,-4],then modulus of uis: |
A. 5
B. 5i
C. -5
D. √5
|
| 10 | The angle between the vectors u = [-3 , 5] and v = [6 , -2] is: |
A. π/2
B. -3π/2
C. π
D. None of these
|
Test Questions