A. Perpendicular to the direction of flow
B. Parallel to the direction of flow
C. At an angle 30° to 60° to the direction of flow
D. None of these
Correct Answer: At an angle 30° to 60° to the direction of flow ✔
Last Updated: August 25, 2020
A. Perpendicular to the direction of flow
B. Parallel to the direction of flow
C. At an angle 30° to 60° to the direction of flow
D. None of these
Correct Answer: At an angle 30° to 60° to the direction of flow ✔
Last Updated: August 25, 2020