A Quiz to test your Environmental Engineering knowledge

• Water containing dissolved solids up to 1000 mg/L is called:
  1. Reclaimed sewage.
  2. Fresh water.
  3. Saline water.

• The idea behind an artificial neural network is:
  1. Pattern recognition.
  2. Systematic logic and rules.
  3. Organization of imprecise data.

  

• The above image best describes:
  1. Cumulonumbus clouds.
  2. A tornado.
  3. Cirrus clouds.

• GIVEN- 0.1% of the total exhaust gas mass is from VOCs. Assume ideal gas conditions at STP. The VOCs MW= 110 g/mol and the exhaust gas MW= 25 g/mol. FIND- the concentration (in ppm) of VOCs emitted by 20 Kg of the exhaust gas:
  1. 4.45 ppm
  2. 227.5 ppm
  3. 2.2*10^(-4) ppm

• GIVEN- Pipe AB is 180 feet long and its diameter is 18 inches. FIND- the equivalent length for an 8 inch pipe.
  1. 88.8 ft
  2. 9341 ft
  3. 3.47 ft

• An aquifer is:
  1. A waste water filtration system.
  2. A sub-surface area able to transmit enough water to economically withdrawl the water and not significantly deplete it.
  3. A special cooler for storing beer.

• PM-10 refers to:
  1. Particulate matter less than 10 micrometers in diameter.
  2. An air pollution control device that typically captures sulfate particles.
  3. An hour in the late evening.

• The formation of nitrogen oxides can occur:
  1. By the application of too much hair spray.
  2. By conversion of water in the atmosphere.
  3. By the combustion of fuel in air.

• Processes called adiabatic have:
  1. Constant temperature and pressure.
  2. No heat supplied or removed.
  3. Occassional "downtime."

• The mean for a set of data is defined as:
  1. The sum of the data points divided by the number of points.
  2. The central data point if the points are plotted in numerical order.
  3. The point that occurs most frequently in the data set.