For piping assemblies, screwed fittings cannot be used for: (a) galvanised piping as corrosion may develop around the threaded section (b) high flow applications as turbulence may be initiated at the threaded section (c) sections that have to be dismantled for maintenance (d) low pressure applications as the depth of the pipe thread reduces the pressure rating of the pipe.

10 years is the answer

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?

um i think it might be a car?