Online NAT IGS General Science Mathematics Test Preparation for Pakistani Students

NAT I General Science Mathematics

Sr. #	Questions	Answers Choice
1	If the vector 2i+4j-2k and 2i +6j+xk are perpendicular then x-7	4 8 14 7
2	If the angle between two vectors with magnitude 8 and 2 is 60° then their scalar product is	12 8 16 1
3	The direction cosines of y-axis are	1,0,0 0,1,0 0,0,1 1,1,1
4	If i,m,n are the direction cosines of a vector O̅P̅ then	I<sup>2</sup> + m<sup>2</sup> + n<sup>2</sup> =0 I<sup>2</sup> - m<sup>2</sup> + n<sup>2</sup> =1 I<sup>2</sup> + m<sup>2</sup> + n<sup>2</sup> =1 I<sup>2</sup> + m<sup>2</sup> - n<sup>2</sup> =0
5	The magnitude of a vector can never be	Zero Negative Positive Absolute
6	Unit vector in the positive direction of x-axis is	î ĵ k̂ All
7	The two different parts of the hyperbola are called is	Vertices Directrices Nappes Branches
8	The line through the center and perpendicular to the transverse axis is called the	Major axis Minor axis Focal axis Conjugate axis
9	The vertices of the ellipse x² + 4y² = 16 are	(±,4,0) (0,±,4) (± 2,0) (0,± 2)
10	The end points of the major axis of the ellipse are called its	foci Vertices Co-vertices eccentricity