Q454
In 'Water drop method' the diameter of water drop should be
A.
4.5 mm
B.
30 mm
C.
30 cm
D.
4.7 mm
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
In the 'water drop method', the diameter of the water drop should be 4.7 mm.A drop or droplet is a small column of liquid, bounded completely by free surfaces.
Drop testing is used to check the volume of water loss from a reservoir to identify maintenance requirements and to meet the requirements of regulatory authorities.