ECAT Mathematics Chapter 24 online mcq test with answers for chapter 24 (Vectors)

ECAT Mathematics Chapter 24 Vectors Online Test

Sr. #	Questions	Answers Choice
1	The ortho center of triangle whose vertices are (0,0)(3,0)(0,4) is	(0,0) (1,1) (2,2) (3,3)
2		0 1 -1 None
3	If C is the mid point of AB and P is any point outside AB, then
4		A,. B, C are coincident A, B, C are collinear Both A and B None of these
5
6
7
8	3j . k x i	0 1 3 9
9	The angle between the vectors 3i + j - k and 2i - j + k is
10		A 0 Unit vector None
11	If the vector 2i + 4j - 7k and 2i + 6j + xk are perpendicular then x = ?	0 2 4 7
12	If the angle between two vectors with magnitude 6 and 2 is 60° when their scalar product is	12 6 3 0
13		0 90° 180° 360°
14
15	The direction cosines of y-axis are	1, 0, 0 0, 1, 0 0, 0, 1 1, 1, 1
16		l<sup>2</sup>+ m<sup>2</sup>+ n<sup>2</sup>= 0 l<sup>2 </sup>- m<sup>2</sup>+ n<sup>2</sup>= 1 l<sup>2</sup>+ m<sup>2</sup>+ n<sup>2</sup>= 1 l<sup>2</sup>+ m<sup>2</sup>- n<sup>2</sup>= 0
17	Which of the vectors have opposite direction?
18
19	The magnitude of a vector can never be	Zero Negative Positive None of these
20	A vector of magnitude zero is called	Position vector Null vector Free vector None of these
21	Unit vector in the positive direction of x-axis is
22		Free vector Null vector Unit vector None of these
23	If the angle between two vectors with magnitude 2 and 15 is 30°then their scalar product is	15 30
24		12 6 8 none of these
25
26
27
28
29
30		none of these