| 1 |
Two vector can be added by simple arithmetical method when they are at an angle of. |
- A. 120<sup>o</sup>
- B. 90<sup>o</sup>
- C. 0<sup>o</sup>
- D. 45<sup>o</sup>
|
| 2 |
Dot product of vector with itself is. |
- A. Zero
- B. 2 A
- C. A<sup>2</sup>
- D. A
|
| 3 |
A force of 100 N makes an angle of 60o with Y- Axis, its horizontal component is. |
- A. 50 N
- B. 60 N
- C. 70.7 N
- D. 86.6 N
|
| 4 |
The dot product of two vectors A and B will be zero, if angle between A and B is |
- A. Zero
- B. 30<sup>o</sup>
- C. 90<sup>o</sup>
- D. 180<sup>o</sup>
|
| 5 |
Usually the x-axis is taken as |
- A. Vertical axis
- B. Horizontal axis
- C. +ve axis
- D. -ve axis
|
| 6 |
The resultant of two forces 3N and 4 N acting at right angle to each other is. |
- A. 5 N
- B. 6 N
- C. 1 N
- D. 7 N
|
| 7 |
When a vector is multiplied by a (-)ve number its direction |
- A. Remains constant
- B. Reversed
- C. Change by 90°
- D. None of these
|
| 8 |
The angle between x-axis, y-axis and z-axis is |
- A. 45°
- B. 60°
- C. 75°
- D. 90°
|
| 9 |
The direction of vector in space is specified by |
- A. 1- angle
- B. 2- angle
- C. 3- angle
- D. 4 - angle
|
| 10 |
Head to tail rule is used for |
- A. Addition of vectors
- B. Subtraction of vectors
- C. Multiplication of vectors
- D. Division of vectors
|