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Water Distribution 1 Questions and Answers 100% Correct

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Water Distribution 1 Questions and Answers 100% CorrectWater Distribution 1 Questions and Answers 100% CorrectWater Distribution 1 Questions and Answers 100% CorrectWater Distribution 1 Questions and Answers 100% CorrectHead is measured in - ANSWER-feet A plat is - ANSWER-A map Which type of ...

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  • August 8, 2023
  • 7
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • a plat is answer a m
  • water distribution 1 questions and answers 100 co
  • water distribution 1 questions and answers
  • water distribution 1 questions and answers stuvia
  • head is measured in answer feet

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Water Distribution 1 Questions and Answers 100% Correct
Head is measured in - ANSWER-feet
A plat is - ANSWER-A map
Which type of valve will prevent the collapse of a pipe - ANSWER-Air-and-vaccume relief valve
The highest degree of protection of a coated steel pipe is - ANSWER-cathodic protection
At which time of day is the age of the water stored in the distribution system the highest? - ANSWER-In the morning
One of chlorines advantages is that it - ANSWER-has a persistent residual
Chlorine gas is _____ times heavier than air. - ANSWER-2.5
After a water storage tank has been chlorinated, which bacteriological test must prove negative before the tank is put back into service. - ANSWER-Coliform test
Which is the best and most reliable way of finding a very small chlorine leak? - ANSWER-Use a chlorine gas detector and place it near any area suspected of leaking.
The minimum required free chlorine residual anywhere in the distribution system is - ANSWER-a detectable level
First draw samples for the analysis of lead and copper water must be collected from taps where the water has stood motionless in the plumbing for at least - ANSWER-6 hours
Samples collected for cloakrooms are collected in plastic bottles that must contain - ANSWER-Sodium thiosulfate
The volume of a sample for coliform compliance is - ANSWER-100 ml
If a water sample is not analyzed immediately for chlorine residual, it is acceptable to be
analyzed within - ANSWER-15 minutes
The heart of a pump is called the - ANSWER-impeller Which device serves the same function as the packing - ANSWER-Mechanical seal
Which is used to stop air leakage into the casing around the pump shaft - ANSWER-
seals
Which is at the top of a stuffing box? - ANSWER-Packing gland
Which assembly holds the lantern ring and packing? - ANSWER-Stuffing box
Why is it important to monitor the speed of a variable speed pump? - ANSWER-To prevent cavitation from occurring
Which basic electrical unit is used to measure a materials opposition of flow of electricity? - ANSWER-Ohm
The first oil change on a pump should be done - ANSWER-After a month of operation
How often should the temperature of centrifugal pump motor bearings be checked with a thermometer? - ANSWER-Once a month
All sensors that respond to liquid pressure will preform poorly if _______ enters the air sensor - ANSWER-Air
Which agency sets limits on the concentration levels of harmful contaminants in potable water distributed to costumers? - ANSWER-United States Environmental Protection Agency
Which violations are most serious? - ANSWER-Tier 1
A positive fecal coliform test must be reported to the primacy agency within 24 hours - ANSWER-24 hours
The number of monthly distribution system bacteriological samples is required is - ANSWER-based on the population served
Which is the approximate angle of response for average soils when using the sloping method for the prevention of cave ins? - ANSWER-1.0 : 1.0
At what time of day is the age of the water stored in a distribution system the lowest? - ANSWER-Late Evening
Which type of maps should not overlap each other? - ANSWER-Sectional maps
Which of the following is a joint for ductile iron piping? - ANSWER-Flexible ball joint

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