Question

Consider a thin cylindrical pipe in which water flows. At temperature below freezing,water freezes. Which of the following steps will make the pipe more capable of with standing the increased pressure?

• A. decrease the radius of pipe and increase and increase the thickness of its wall.
• B. decrease the radius of pipe and thickness of wall.
• C. increase the radius of pipe and thickness of it's wall
• D. increase the radius of pipe and decrease thickness of it's wall.

Answer 1

The correct option is A decrease the radius of pipe and increase and increase the thickness of its wall.

Increase in thickness of the pipe will increase the capability of withstanding the pressure .And decreases in the radius of pipe will reduce the quantity of water per unit length of pipe and thus the quantity of ice and ultimately pressure inside the pipe.