ECAT Mathematics Chapter 23 online mcq test with answers for chapter 23 (Conic Section)

Top Scorers Of ECAT (Pre-Eng) Mathematics MCQ's Test For Chapter 23 MCQ`s Test

Sr.#	Question	Answer
1	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
2	If c = 2i+j+k and d= -1 + 4j +2k, then [c-d]=	A. √7 B. √41 C. √19 D. √(2&7)
3	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
4	The magnitude of vector a=i-3j+5k is:	A. 3 B. √35 C. √17 D. √35
5	The magnitude of vector a 2i-7j is	A. √23 B. √43 C. 3 D. √53
6	If u = xi + yj, then\|u\|	A. x² + y² B. (x² +y²)² C. x²-y² D. √(x²+y²)
7	The vector k = [0,0,1] is called unit vector along:	A. x -axis B. y - axis C. z- axis D. None of these
8	If a,b = 0 then	A. a \|b B. a\|\|b C. a = b D. None
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	Vector additon is:	A. Commutative B. Associative C. Commutative and Associative D. None of these