Punjab 12th Class Math Chapter 7 Vectors Mcqs Test Online Punjab 12th Class Math Chapter 7 Vectors Mcqs Test Online 1234567891011121314151617181920Show paginator Hide paginator Question 1 of 20Math 1. Two or more vectors are said to be collinear if they are 1.intersecting the same line 2.parallel to the same line 3.perpendicular to the same line 4.not parallel to the same lineQuestion 1 of 20Question 2 of 20 2. If the vector 2i + 4j – yk and 2i + 6j xk are perpendicular then x = 1.2 2.4 3.8 4.1 Question 2 of 20Question 3 of 20 3. The equation (x – 1)² + (y – 3)² + (z – 5)² = 25 represents 1.a circle 2.a plane 3.an ellipse4.a sphere Question 3 of 20Question 4 of 20 4. If the right bisectors of the two sides of a triangle pass through the origin then the right bisector of the third side will pass through the point 1.(1, 1) 2.(1, 2) 3.(0, 0)4.(1, 3) Question 4 of 20Question 5 of 20 5. The position vector of a point P(x, y, z) is denoted by 1.D2.B3.A4.CQuestion 5 of 20Question 6 of 20 6. If i & j are two unit vectors then i x j = 1.k 2.-1 3.0 4.1 Question 6 of 20Question 7 of 20 7. For three vectors a, b, & c : (a + b) + c = 1.ab 2.abc 3.a + (b + c)4.ac + bc Question 7 of 20Question 8 of 20 8. The three coordinate’s planes divide all space into 1.4 cells 2.6 cells3.8 cells 4.3 cells Question 8 of 20Question 9 of 20 9. The coordinates of the center of the sphere x² + y² + z² = 9 is 1.(0, 0, 3)2.(0, 0) 3.(3, 3, 0) 4.(0, 0, 0) Question 9 of 20Question 10 of 20 10. Which of triples can be direction angles of a single vector = 1.90°,90°,45° 2.45°,45°,90° 3.0°,0°,45° 4.30°,30°,30° Question 10 of 20Question 11 of 20 11. The distance from the origin to the plane 1.0 2.2 3.7 4.1 Question 11 of 20Question 12 of 20 12. The contact in which the point coordinates are all positive is called 1.1st octant 2.8th octant3.4th octant 4.2nd octant Question 12 of 20Question 13 of 20 13. The point (3, 5, 8) lies in the 1.8th octant 2.1st octant3.3rd octant 4.5th octant Question 13 of 20Question 14 of 20 14. The numbers proportional to the direction cosines of a vector are called 1.Rational numbers2.Scalar numbers 3.Direction numbers 4.Vector numbers Question 14 of 20Question 15 of 20 15. Magnitude of the vector xî + yĴ is: 1.x²–y² 2.√x²–y² 3.√x²+y² 4.√x+y Question 15 of 20Question 16 of 20 16. The equation 2x + 3y + 6z = 35 represents1.a plane 2.a line 3.a parabola4.a circle Question 16 of 20Question 17 of 20 17. The join of the mid points of the consecutive sides of any quadrilateral is 1.a parallelogram 2.none of these3.a square 4.a rectangle Question 17 of 20Question 18 of 20 18. The triangle law for vector addition is equivalent to the 1.Associative law2.Commutative law 3.Parallelogram law4.First law Question 18 of 20Question 19 of 20 19. If l₁l₂ + m₁m₂ + n₁n₂ = 0then the angle between the two vectors is1.60° 2.180°3.90° 4.45° Question 19 of 20Question 20 of 20 20. If Cosα, Cosβ, Cosχ are the directions Cosines of a vector then 1.Cosα + Cosβ + Cos χ = 02.Cos²α + Cos²β + Cos²χ = 0 3.Cos²α + Cos²β + Cos² χ = 1 4.Cosα + Cosβ + Cos χ = 1 Question 20 of 20 Loading... Test By Subject Punjab Test By Topics 12th Class Math You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.