1. Your municipality seeks your advice in preparing a new ordinance pertaining to the use of sewers.  What three items are considered the most important and which would have the most impact on the operation of the treatment plant?
a. Quantity of flow, strength of wastewater, and toxicity of wastewater
b. Strength of wastewater, temperature of wastewater, and surcharge if industrial flow
c. Temperature of wastewater, pH of wastewater, adn BOD of wastewater
d. Pretreatment of wastewater, surcharge f wastewater, and quality of wastewater

2. When using an ohmmeter to measure circuit resistance _.
a. external power must be on
b. external power must always be off
c. pump must be operating

3. Spraying water on a leaking container of chlorine will _.
a. slow the leak by cooling the tank
b. neutralize the acidity of the chlorine
c. make the leak worse
d. allow repair personnel to approach the leak

4. Voltage is _.
a. a measurement of electrical flow
b. a measurement of total energy
c. a difference of potential or electrical pressure

5. The most accurate voltage readings are taken when _.
a. the equipment is turned on and working under load
b. with the pump not running
c. with the pump running without load

Answers:

1. a
2. b
3. c
4. c
5. a