Plumbing Inspection Section#2 Water Heaters Quiz#5

You should have finished Study Session 4 before starting this study session. This study session deals with oil burners and their venting systems. It also includes the electrical supply for electric waters.

The estimated completion time is one to one and a half hours.

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

• List six problems found with oil burners.
• List three problems found with primary controllers.
• List six problems found with barometric dampers.
• List twelve problems found with vent connectors for oil water heaters.

• Question 1

  Needs Grading

  	List eight problems commonly found with vent connectors.
  	Selected Answer: 1. Rusting 2. Poorly sloped 3. Poorly supported 4. Excess path 5. Too small 6. Dirty 7. Onbstructed 8. Improper material Correct Answer: 1. Rusting 2. Poorly sloped 3. Poorly supported 4. Excess length 5. Inadequate clearance to combustibles 6. Loose connections 7. Too small 8. Improper material 9. Dirty 10. Poor insertion into chimney 11. Poor manifolding 12. Obstructed Response Feedback: [None Given]

• Question 2

  Needs Grading

  	List five problems commonly found with oil burners.
  	Selected Answer: 1. Dirty 2. Inoperative 3. Leaking 4. Incomplete combustion 5. Excess noise/vibration 6. Too close to combustibles 7. Refratory problems Correct Answer:   1. Dirty 2. Inoperative 3. Leaking 4. Incomplete combustion 5. Excessive noise/vibration 6. Too close to combustibles 7. Refractory problems Response Feedback: [None Given]

• Question 3

  Needs Grading

  	List four problems commonly found with barometric dampers.
  	Selected Answer: 1. Rusting 2. Inoperative 3. Missing 4. Spillage 5. Misadjusted Correct Answer:   1. Rusting 2. Inoperative 3. Missing 4. Misadjusted 5. Inadequate draft air 6. Spillage Response Feedback: [None Given]

• Question 4

  Needs Grading

  	List three causes of incomplete combustion.
  	Selected Answer: 1. Partially clogged oil filter 2. Poor oil delivery 3. Dirty fan inlets 4. Poor burner adjustment Correct Answer: 1. A worn or dirty nozzle 2. A partially clogged oil filter 3. Dirty fan inlets 4. Poor burner adjustment 5. Poor oil delivery 6. A worn pump 7. Refractory problems Response Feedback: [None Given]

• Question 5

  Needs Grading

  	What color should an oil burner flame be?
  	Selected Answer: orange flame Correct Answer:   Orange Response Feedback: [None Given]

• Question 6

  Needs Grading

  	What is the correct slope for a vent connector from an oil burner?
  	Selected Answer: 1/4 inch per foot up towards the chimney Correct Answer:   1/4 inch per foot up away from the appliance Response Feedback: [None Given]

• Question 7

  Needs Grading

  	What is the purpose of the primary controller?
  	Selected Answer: It ensures that the burner has ignited. If the controller doeesn't see heat within 60 to 90 seconds of start-up, it will shut the burner down so the combustion chamber won't be flooded with unburned oil.  Correct Answer:   The primary control checks the exhaust flue for heat. If it does not find any, it assumes that the oil burner is not igniting properly and shuts it down. Response Feedback: [None Given]

• Question 8

  Needs Grading

  	What is the rule of thumb for length of vent connector on an oil burning appliance?
  	Selected Answer: maximum of 10 feet plus two elbows Correct Answer:   Use a vent length maximum of 10 feet plus two elbows. Response Feedback: [None Given]

• Question 9

  Needs Grading

  	Where should the power switch for the oil burner be located?
  	Selected Answer: Near the bottom of the basement stairs and between stairs and the appliance Correct Answer:   Between the stairs and the appliance Response Feedback: [None Given]

• Question 10

  Needs Grading

  	You see black smoke coming off an oil burner. List three reasons why this could possibly occur.
  	Selected Answer: 1. Inadequate combustion air 2. Wrong nozzle 3. Refractory issue Correct Answer:   1. Inadequate air 2. Wrong nozzle 3. Defective refractory Response Feedback: [None Given]

• Question 11

  0 out of 0 points

  	Typical clearance to combustibles for an oil burner is:
  	Selected Answer:   24inches Answers: 6 inches 12 inches 18inches   24inches 30 inches Response Feedback: Good work

• Question 12

  0 out of 0 points

  	What is minimum combustible clearance for a single wall vent connector from an oil water heater?
  	Selected Answer:   9 inches Answers: 3 inches 6 inches   9 inches 12 inches 15 inches Response Feedback: Good work

• Question 13

  0 out of 0 points

  	What is the minimum flue gas temperature for an oil burner?
  	Selected Answer:   350° F Answers: 200° F 300° F   350° F 400° F 450° F Response Feedback: Good work

• Question 14

  0 out of 0 points

  	A damper which is stuck open will only increase heating costs due to heat loss from house air going up the chimney.
  	Selected Answer:  False Answers: True  False Response Feedback: Good work

• Question 15

  0 out of 0 points

  	A draft damper should be found on every oil burner.
  	Selected Answer:  False Answers: True  False Response Feedback: Good work

• Question 16

  0 out of 0 points

  	An oil water heater vent should connect into a chimney below an oil furnace vent.
  	Selected Answer:  False Answers: True  False Response Feedback: Good work

• Question 17

  0 out of 0 points

  	Three sheet metal screws should be used at each joint in the vent connector to hold the sections together.
  	Selected Answer:  True Answers:  True False Response Feedback: Good work