Electricity Inspection Section#3 The Distribution System Quiz#5

You should have finished Study Session 4 before starting this study session. This study session deals with switches and junction boxes, and touches on smoke detectors.

The estimated completion time is 30 minutes.

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

• Describe the function of switches and junction boxes and the common operating conditions.
• Describe the causes and implications of the conditions.
• Explain how to inspect these systems.

• Question 1

  Needs Grading

  	How would you identify an obsolete switch?
  	Selected Answer: Early switches have two round push buttons Correct Answer:   An obsolete switch is typically a round, push-button switch.

• Question 2

  Needs Grading

  	List 10 common problems found with switches.
  	Selected Answer: 1. Damaged 2. Loose 3. Overheating 4. Inoperative 5. Obsolete 6. Poor location near furnace 7. Poor location in bathroom 8. Faulty three-way or four-way switches 9. Dimmer switches without positive shut off 10. Garbage disposal problems Correct Answer: 1. Damaged 2. Loose 3. Overheating 4. Inoperative 5. Obsolete 6. Poor location near furnace 7. Poor location in bathroom 8. Faulty three-way or four-way switches. 9. Dimmer switches without positive shut-off 10. Poor switch location for garbage disposal

• Question 3

  Needs Grading

  	List 8 common junction box problems.
  	Selected Answer: 1. Damaged 2. Missing 3. Loose 4. Overheating 5. Not grounded 6. Cover loose or missing 7. Crowded 8. Concealed boxes Correct Answer:   1. Damaged 2. Missing 3. Loose 4. Overheating 5. Not grounded 6. Cover loose or missing 7. Crowded 8. Concealed boxes

• Question 4

  Needs Grading

  	Name two types of smoke detectors.
  	Selected Answer: ionization detectors photoelectric detectors Correct Answer:   Ionization and photoelectric

• Question 5

  Needs Grading

  	What connections do not need to be inside junction boxes?
  	Selected Answer: Knob-and-tube wiring Correct Answer:   Fluorescent light boxes and original knob-and-tube wiring connections.

• Question 6

  Needs Grading

  	What is a common problem with dimmer switches?
  	Selected Answer: You could adjust the light to so low that no one thinks it is on.  Correct Answer:   No positive shut-off.

• Question 7

  Needs Grading

  	What is a traveler in the context of a 3-way switch?
  	Selected Answer: Wires runs between the two three-way switches is usually called traveler.  Correct Answer:   The traveler is typically the three-conductor cable between the two switches.

• Question 8

  0 out of 0 points

  	All junction boxes should be concealed.
  	Selected Answer:  True Correct Answer:  False

• Question 9

  0 out of 0 points

  	Knob-and-tube wiring was installed without junction boxes commonly.
  	Selected Answer:  True Correct Answer:  True

• Question 10

  0 out of 0 points

  	One smoke detector is needed in each home, near the kitchen because that's where most house fires start.
  	Selected Answer:  False Correct Answer:  False