Question

1. When solving an environmental engineering equation you come across the following exponential 2 kt If the numerical value of time (t) is in units of hours the units of the numerical value of the rate constant (k) must be: A. Hours B. Hours-2 . Hours2 D. Not enough information is given to know for certairn 2. The service lines for piped water distribution systems of very cold climates sometimes have a piece of equipment inserted into a circulating water main which brings water into the house. This piece of equipment is referred to as: A. A transistor B. A freeze plug C. A pit orifice . A pipe sleeve 3. According to Andrew, which famous engineer mentioned in class deserves the title of 'hero' for his life's work in engineering? (no penalty for spelling errors) 4. Why is it important for users of outhouses to close the lid of the toilet seat after use? (Choose the best answer) A. Closing the lid prevents odors from coming back up into the outhouse B. The anaerobic (oxygen free) environment must be maintained to break down the solids in the pit C. Biological activity in the pit must be kept warm to function and keeping the heat inside of the pit will speed up the breakdown of the solids 5. In a fusion reactor 4 grams of Deuterium undergoes a fusion reaction with 6 grams of Tritium. The resulting Helium and Neutrino weigh a total of 9.92 grams. How muclh energy is theoretically released by this reaction in kWh? (One kWh is approximately 3,600,000 Joules)

Answer 1