An absorbing dynamometer acts as a load that is driven by the prime mover that is under test (e.g. Pelton wheel). The dynamometer must be able to operate at any speed and load to any level of torque that the test requires.
While some causes are obvious, such as hurricanes and snow melt, many are not. Heavy Rains: Cresting rivers, backed-up storm drains, or saturated ground can cause significant floods. Heavy rains can contribute to flash floods, which are the number one weather-related killer in the United States. A flash flood is a rapid flooding of low-lying areas in less than six hours. Heavy rains also increase the chance of mudflows, rivers of liquid, and flowing mud.
Why do flash floods occur? The main factors that result in flash floods in deserts and semi deserts are; - sudden, intense rain. Total rainfall amounts (measurements) do not have to be high, even stor â¦ ms of less than .5 inches can cause flash floods, if the rainfall is intense.- topography.esert soil is thin and dry and cannot absorb a sudden rainstorm and there are few plants to absorb water. The rain rushes down hillsides and mountains and overflows arroyos, flowing into roads and homes in its path. They can occur suddenly and areas far from the actual storm can be flooded.