摘要:

There are more ways than one to motivate a treatment operator. Top‐Ops‐‐a verbal, question‐and‐answer, quiz‐show‐type competition‐‐is one way. The contest is sponsored by the California‐Nevada (Cal‐Nev) section. The article describes the how to put on such a contest, from creating the questions to building the contestants' podiums. Sample questions are given, as is a schematic of the wiring to create the lights and buzzers on the contestants' podiums.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1992.tb00776.x

出版商:Wiley    

年代:1992

数据来源: WILEY

摘要:

Preparing nondraining hydrants for winter has always been a tedious task for crews in Menominee, Michigan. Exposed to dirt and rust from the hydrants, the rubber impellers on electric pumps wear out. Pitcher and diaphragm‐type hand pumps are both time consuming and exhausting to use when emptying water from 8‐in. (203‐mm) barrels that are buried 6 ft (183 cm) deep. However, the hydrant purger now makes it easy to empty hydrant barrels quickly. The article lists materials and gives instructions for making and using the purger.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1992.tb00777.x

出版商:Wiley    

年代:1992

数据来源: WILEY

摘要:

During the winter months, the Dartmouth, N.S., Water Utility has a problem operating valves in valve boxes that have become frozen with as much as 2 1/2 ft (.76 m) of ice. Gaining access to such valves is often a time‐consuming process repeated as frequently as 100 times a year. Using a steam‐generating machine (when available) to go through 2 1/2 ft (.76 m) of ice could take 20 min. Using a pry bar to smash out that much ice might take as long as 1 hour. In the meantime, four workers must wait for the valve to be shut off before they can get to work repairing a break. With a store‐bought auger, workers can break through the ice in as little as 10 minutes.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1992.tb00778.x

出版商:Wiley    

年代:1992

数据来源: WILEY