This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Crown corrosion in sanitary sewers is caused by a. bacteria that produce hydrogen sulfide gas and ... (Read 21 times)

wenmo

  • Hero Member
  • *****
  • Posts: 540
on: Jul 26, 2018
Crown corrosion in sanitary sewers is caused by
 
  a. bacteria that produce hydrogen sulfide gas and sulfuric acid
  b. abrasion of the pipe wall by suspended solids in the sewage
  c. normal wear and tear of the pipeline
  d. excessively high wastewater flow velocities
  e. acidic industrial wastewater

Question 2

Exfiltration testing is used to
 
  a. ensure noxious gases do not leak OUT of a sewer line
  b. determine the pumping capacity of water supply wells
  c. check the structural integrity of underground pipelines
  d. test sanitary sewers for watertightness or leaks
  e. determine the fire flow capacity of a water main


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lou

  • Sr. Member
  • ****
  • Posts: 286
Reply #1 on: Jul 26, 2018
Answer to Question 1

a

Answer to Question 2

d


wenmo

  • Member
  • Posts: 540
Reply 2 on: Jul 26, 2018
YES! Correct, THANKS for helping me on my review

Perkypinki

  • Member
  • Posts: 339
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Practical Bacteria Practical Bacteria
Breast milk bacteria Breast milk bacteria
Bacteria Diagram Bacteria Diagram
Petri dish containing fecal bacteria cultures. Petri dish containing fecal bacteria cultures.
The Accessory Organs The liver, gallbladder, and pancreas produce digestive secretions that flow The Accessory Organs The liver, gallbladder, and pancreas produce digestive secretions that flow
If 250. L of nitrogen reacts with 582 L of hydrogen by the reaction: N2(g) + 3 H2(g) 2 NH3(g), ... If 250. L of nitrogen reacts with 582 L of hydrogen by the reaction: N2(g) + 3 H2(g) 2 NH3(g), ...
Video: Muscle cell structures - actin, myosin and titin filaments

For a complete list of videos, visit our video library