Final answer:
Viscous hydroplaning is more likely to occur on a smooth runway surface because the lack of roughness provides less friction, which can lead to a barrier of water that causes the aircraft tires to lose contact with the ground.
Step-by-step explanation:
Viscous hydroplaning is more likely on a smooth runway surface. This type of hydroplaning occurs when a thin layer of water builds up between the aircraft tires and the runway. Since a smooth surface provides less friction, it is easier for this water layer to create a barrier that reduces the tire's contact with the ground, leading to hydroplaning.
The principle behind hydroplaning is similar to the concept that friction varies between surfaces due to different degrees of roughness or smoothness, as mentioned in statement 87, 'True or False-Friction varies from surface to surface because different substances have different degrees of roughness or smoothness.' A rough surface would create more friction and thus would be less prone to viscous hydroplaning compared to a smooth surface.