Plumbing Inspection Section#2 Water Heaters Quiz#4

You should have finished Study Session 3 before starting this study session. This study session deals with oil-fired water heaters and the components involved in the flow of oil up to, but not including, the burner.

The estimated completion time is 45 minutes.

Objectives
At the end of this study session, you should be able to:

• List four problems found with oil storage tanks.
• List four problems found with oil fill and vent pipes.
• List four problems found with oil supply lines.
• Describe the use of an oil safety valve.
• List three problems found with oil filters.

• Question 1

  Needs Grading

  	Briefly describe how a fire safety valve functions.
  	Selected Answer: This valve can cut off the flow of oil in event of a high temperature (presumably fire) at the valve Correct Answer:   This valve cuts off the flow of oil in the event of a high temperature (presumably fire) at the valve. Response Feedback: [None Given]

• Question 2

  Needs Grading

  	Briefly describe how an oil safety valve works.
  	Selected Answer: This valve senses the suction of the pump, and cuts offthe flow of oil if the line is not under suction Correct Answer:   This valve senses the suction of the pump and cuts off the flow of oil if the line is not under suction. Response Feedback: [None Given]

• Question 3

  Needs Grading

  	Buried oil tanks which have been abandoned typically require:
  	Selected Answer: pipes to be removed and filled with sand or concrete slury Correct Answer:   Removal of the tank and clean-up of any contaminated soil. Response Feedback: [None Given]

• Question 4

  Needs Grading

  	List four problems commonly found with oil fill and vent pipes.
  	Selected Answer: 1. Leak 2. Missing caps 3. Damaged 4. Corroded Correct Answer:   1. leak 2. missing caps 3. abandoned 4. damaged/corroded Response Feedback: [None Given]

• Question 5

  Needs Grading

  	List four problems with oil supply lines.
  	Selected Answer: 1. Leaks 2. Corrosion/Mechanical damage 3. Unprotected 4. Undersized Correct Answer:   1. leaks 2. corrosion/mechanical damage 3. unprotected 4. undersized Response Feedback: [None Given]

• Question 6

  Needs Grading

  	List two methods of protecting an oil supply line.
  	Selected Answer: 1. Hard plastic sleeve 2. Buring the line in a mortar bed Correct Answer:   A hard plastic sleeve, or burying the line in a mortar bed. Response Feedback: [None Given]

• Question 7

  Needs Grading

  	Oil tanks typically rust at the bottom because:
  	Selected Answer: Condensation Correct Answer:   Water is heavier than fuel oil. The water will sink to the bottom of the tank causing the bottom of the tank to corrode. Response Feedback: [None Given]

• Question 8

  Needs Grading

  	What does it mean when you find fill and vent lines going into the ground 20 feet from the house?
  	Selected Answer: It could be abandoned Correct Answer:   It suggests that the oil storage tank is buried outside. Response Feedback: [None Given]

• Question 9

  Needs Grading

  	What is the biggest implication of leakage from a buried oil tank?
  	Selected Answer: Possible fuel leakge Correct Answer:   Soil contamination Response Feedback: [None Given]

• Question 10

  Needs Grading

  	What is the minimum horizontal distance between an oil tank and an oil burner?
  	Selected Answer: 10 feet Correct Answer:   10 feet (5 feet in some cases) Response Feedback: [None Given]

• Question 11

  Needs Grading

  	Why might you find an oil filter wrapped in a plastic bag?
  	Selected Answer: To collect oil from a very slow leak Correct Answer:   The filter may be leaking. Response Feedback: [None Given]

• Question 12

  Needs Grading

  	Why should an outside, above ground oil tank have a larger than normal oil supply line until it gets inside the house?
  	Selected Answer: In cold climate, fuel oil thickens and doesn't flow well.  Correct Answer:   A larger pipe will have a lower risk of blockage and will allow cold (thicker) oil to flow more easily. Response Feedback: [None Given]

• Question 13

  0 out of 0 points

  	Rust over the entire outside of the tank would typically be associated with:
  	Selected Answer:   high humidity problem in the basement Answers: condensation in the oil water in the oil delivered by the fuel supplier missing vent gooseneck   high humidity problem in the basement flooding problem in the basement Response Feedback: Good work

• Question 14

  0 out of 0 points

  	What is the approximate life of a buried oil tank?
  	Selected Answer:   10 to 20 years Answers: 5 to 10 years   10 to 20 years 20 to 40 years 40 years and up not known Response Feedback: Good work