Exterior Inspection Section#3 Exterior Structures Quiz#4

You should have finished Study Session 3 and Quick Quiz 3 before starting this Study Session. This Study Session covers garages and carports.

The estimated completion time is one hour.

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

• Describe in one sentence how to assess attached garages for fire- or gas-proofing.
• List four common problems with doors between the house and the garage.
• List three common problems with garage floors.
• Explain "mud jacking" in one sentence.
• List five common problems with garage doors and their openers.
• Test the safety reverse of an automatic garage door opener.
• Explain in one sentence why combustion appliances in garages should be mounted above floor level.

• Question 1

  Needs Grading

  	Define "mud jacking".
  	Selected Answer: Mud jacking is a solution for voids under slabs-on-grade concrete floor. It is to inject concrete through series of 1 to 1-1/2 inches holes to fill voids.  Correct Answer:   Injection of a concrete slurry through holes in the slab to fill voids. Also called pressure grouting. Response Feedback: [None Given]

• Question 2

  Needs Grading

  	Explain how in a northern climate a garage floor might settle around its perimeter, and remain intact at the centre.
  	Selected Answer: Garage floor rests on undisturbed soil at center and disturbed soil on perimeter. When perimeter backfill settles, perimeter of the garage floor settles.  Correct Answer:   The foundation trench allows some settlement of backfill, while the centre of the slab rests on undisturbed soil, so doesn?t settle. Response Feedback: [None Given]

• Question 3

  Needs Grading

  	If the vehicle door stops two inches short of the garage floor, there is a problem with the?(Complete the sentence.)
  	Selected Answer: closing limit of automatic garage door opener Correct Answer:   adjustment of the closing limit Response Feedback: [None Given]

• Question 4

  Needs Grading

  	List five problems to look for on a typical sectional garage door.
  	Selected Answer: 1. Difficult to open of close 2. Rot or insect damage 3. Paint/stain 4. Rust or denting 5. Automatic opener problems Correct Answer:   Difficult to open or close Rot or insect damage Paint or stain problems Rust or denting Automatic opener problems Response Feedback: [None Given]

• Question 5

  Needs Grading

  	List three possible causes of a cracked garage floor.
  	Selected Answer: 1. Settlement 2. Heaving 3. Shrinkage during curing Correct Answer:   Settling Heaving Shrinkage during curing Response Feedback: [None Given]

• Question 6

  Needs Grading

  	Man-doors in attached garages should be _____ and _____, and should have a _____ closer attached.
  	Selected Answer: tightfitting,weatherstripped,self Correct Answer:   Tight fitting and weatherstripped, and have a self closer. Response Feedback: [None Given]

• Question 7

  Needs Grading

  	State two drive mechanisms found in garage door openers.
  	Selected Answer: 1. Chain drive. 2. Screw drive Correct Answer:   Chain or screw drive Response Feedback: [None Given]

• Question 8

  Needs Grading

  	State two reasons that combustible plastic insulation is a severe fire hazard.
  	Selected Answer: 1. Plastic burns hot and quickly 2. It gives off a thick toxic smoke Correct Answer:   It gives off a toxic smoke. It contributes tremendous fuel to a fire. Response Feedback: [None Given]

• Question 9

  Needs Grading

  	What does a hollow sound on the garage floor indicate?
  	Selected Answer: Settlement of substrate Correct Answer:   Settled soil under the slab. The slab is now suspended. Response Feedback: [None Given]

• Question 10

  Needs Grading

  	What is garage gas-proofing?
  	Selected Answer: To prevent exhaust fumes from automobiles entering living space Correct Answer:   Drywall or plaster finished in the garage to prevent automobile fumes getting into the house. Response Feedback: [None Given]

• Question 11

  Needs Grading

  	What is the recommended way to test the automatic reverse on a garage door opener?
  	Selected Answer: Place a 2 inch block on the garage floor below the midpoint of the door Correct Answer:   With a two-inch block of wood placed in the door?s path. Response Feedback: [None Given]

• Question 12

  Needs Grading

  	Which way should garage floors slope?
  	Selected Answer: towards driveway Correct Answer:   To drain (usually towards the door) Response Feedback: [None Given]

• Question 13

  Needs Grading

  	Why do authorities discourage floor drains in garages?
  	Selected Answer: because spills of automobile fluids (gas and oil) may find their way into municipal sewer systems. This could be a pollution and life safety problem.  Correct Answer:   Because automotive fluids can find their way into municipal sewers. Response Feedback: [None Given]

• Question 14

  Needs Grading

  	Why should the end of the drain pipe in a driveway drain turn down?
  	Selected Answer: To prevent floating debris clogging drain pipe Correct Answer:   To reduce the amount of debris that gets into the drain pipe. Response Feedback: [None Given]

• Question 15

  Needs Grading

  	Why should there be no supply or return registers from heating/cooling ductwork in a garage?
  	Selected Answer: Automobile fumes could enter living space Correct Answer:   To prevent fumes from entering the house. Response Feedback: [None Given]

• Question 16

  0 out of 0 points

  	A good concrete garage floor slab is usually at least _____ inches thick and has _____ inches of crushed gravel beneath it. (Insert your numbers separated by a comma.)
  	Selected Answer:  3,5 Correct Answer: Evaluation Method Correct Answer Case Sensitivity Exact Match 3, 5 Exact Match 3,5 Response Feedback: Good work!!

• Question 17

  0 out of 0 points

  	Combustion appliances should be at least _____ inches above the floor level. (Insert a number.)
  	Selected Answer:  18 Correct Answer: Evaluation Method Correct Answer Case Sensitivity Exact Match 18 Response Feedback: Good work!!

• Question 18

  0 out of 0 points

  	The diameter of garage drain exit pipe should be at least _____ inches. (Insert a number.)
  	Selected Answer:  3 Correct Answer: Evaluation Method Correct Answer Case Sensitivity Exact Match 3 Response Feedback: Good work!!

• Question 19

  0 out of 0 points

  	Where plastic insulation is noted in a garage, recommend that it be _____ or _____. (Insert your answers separated by a comma.)
  	Selected Answer:  removed,covered Correct Answer: Evaluation Method Correct Answer Case Sensitivity Exact Match covered, removed Exact Match covered,removed Exact Match removed, covered Exact Match removed,covered Response Feedback: Good work!!

• Question 20

  Needs Grading

  	Combustion appliances should be at least _____ inches above the floor level. (Insert a number.)
  	Selected Answer: 18 Answers: 18
  	Feedback Feedback is not shown until the question is graded.

• Question 21

  0 out of 0 points

  	Garage floors that are suspended and have storage or living space below
  	Selected Answer:   should be investigated by a specialist. Answers: can be adequately assessed by a home inspector.   should be investigated by a specialist. Response Feedback: Good work!!

• Question 22

  0 out of 0 points

  	It?s best to test a garage door opener from (inside/outside) the garage. (Choose one)
  	Selected Answer:   inside Answers:   inside outside Response Feedback: Good work!!

• Question 23

  0 out of 0 points

  	Automatic garage door openers have to be strong because they lift the weight of the door.
  	Selected Answer:  False Answers: True  False Response Feedback: Good work!!

• Question 24

  0 out of 0 points

  	The Standards require you to disengage the opener to test the door.
  	Selected Answer:  False Answers: True  False Response Feedback: Good work!!

• Question 25

  0 out of 0 points

  	The vast majority of garage floors are not structural.
  	Selected Answer:  True Answers:  True False Response Feedback: Good work!!