Basic Construction
Basic Construction
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Question 1 |
The two most common roof designs used on homes today are
A | The flat roof and the truss built roof |
B | The rafter built roof and the flat roof |
C | The truss built roof and the rafter built roof |
D | The gable roof design and the hip roof design |
Question 2 |
The most common base used under shingles to strengthen the roof by adjoining the rafters or trusses together is?
A | ¼” plywood |
B | ½” OSB sheathing |
C | ½” particle board |
D | ½” pine board |
Question 3 |
Trusses are commonly constructed of
A | 2”X 8” or 2”X 10” lumber |
B | 1”X 8” or 1”X 10” lumber |
C | 2”X 2” or 2”X 4” lumber |
D | 1”X 2” or 2”X 4” lumber |
Question 4 |
What type of roof construction uses boards that connect the ridge of the roof and the exterior wall?
A | Truss built roof |
B | Flat roof |
C | Hip roof |
D | Rafter built roof |
Question 5 |
The material that is used for a standard ceiling is
A | ¼” drywall |
B | 5/8” drywall |
C | ¾” drywall |
D | 7/8” drywall |
Question 6 |
What would the effect of heat transfer be if the R-value on a roof were increased?
A | It would increase the heat transfer |
B | It would decrease the heat transfer |
C | It would have no effect on heat transfer |
D | It would reduce the thermal efficiency |
Question 7 |
Common exterior residential walls are constructed of?
A | 2”X 2” or 2”X 4” studs |
B | 1”X 2” or 1”X 4” studs |
C | 2”X 4” or 2”X 6” studs |
D | 1”X 4” or 1”X 6” studs |
Question 8 |
How far are the studs spaced in an interior and exterior wall?
A | 12” on center |
B | 14” on center |
C | 16” on center |
D | 18” on center |
Question 9 |
The bottom board located on a wall that the studs are nailed to is known as a
A | Lower rafter |
B | Horizontal stud |
C | Load bearing joist |
D | Bottom plate |
Question 10 |
What is known as a load bearing wall?
A | This is the wall that uses two studs to return air back to the furnace |
B | This is the wall that always has a beam resting on top of it |
C | This is the wall that has the weight of the roof on top of it |
D | This is the wall that should never have a beam resting on top of it |
Question 11 |
What is the purpose of a vapor barrier?
A | To keep moisture from entering the exiting a home |
B | To protect the insulation of an exterior wall |
C | To retain steam created in bathrooms |
D | To remove moisture from a home |
Question 12 |
Name three common exterior wall insulation R-values
A | R-13, R-19, R-30 |
B | R-5, R-11, R-13 |
C | R-19, R-30, R-40 |
D | R-11, R-13, R-19 |
Question 13 |
What is the purpose of the 1”X 2” wood slats that are placed between floor joists?
A | They are used to decrease the squeak of a floor |
B | They are bridging used to stiffen the floor |
C | They are used to support the floor joists |
D | They are used to hold supply air ducts in place |
Question 14 |
A subfloor is commonly made with?
A | ½” tongue and groove plywood |
B | ¾” OSB tongue and groove sheathing |
C | 5/8” OSB sheathing |
D | 5/8” plywood |
Question 15 |
An underlayment floor is made of?
A | ¼” plywood |
B | ¼” OSB sheathing |
C | ½” plywood |
D | ½” OSB sheathing |
Question 16 |
What are the vertical framing members inside a wall called?
A | Rafters |
B | Studs |
C | Joists |
D | Blocks |
Question 17 |
What is the covering laid over the roof truss system called?
A | Sheathing |
B | Sheeting |
C | Shingles |
D | Roof covering |
Question 18 |
When is it permissible to cut or drill into a post tension slab?
A | Anytime a special drill bit is used |
B | A hole can be drilled into the slab as long as the slab is level |
C | Never by the HVAC technician. Only trained personnel using special techniques may do so |
D | As long as any pipe in the slab is not cut then the slab may be freely cut |
Question 19 |
OSB is usually used in which applications?
A | Never in floors |
B | Roof sheathing or wall siding |
C | Ceiling covers |
D | Fencing |
Question 20 |
Why must the header in a wall never be cut?
A | It can be cut as long as it is nailed back together correctly |
B | The header is supporting the entire weight of the wall or structure above it |
C | The paint and texture on the wall may be damaged |
D | The cut will create ripples in the drywall texture |
Question 21 |
Cross Laminated Lumber is assembled using which of the following?
A | Wood scraps and glue |
B | Synthetic glue |
C | Heat bonding |
D | Wood glued together in layers |
Question 22 |
The benefits of using engineered lumber is:
A | Higher profit margins to the mill |
B | Saves money in the long run |
C | Very high strength and productive use of waste materials |
D | Uses less time to construct with |
Question 23 |
What does "4/12 pitch roof" describe?
A | The roof rises 12" for every 4" it runs |
B | The roof rises 4" for every 12" it runs |
C | The roof drops 4" for every 12" it runs |
D | The roof drops 12" for every 4" it runs |
Question 24 |
In reference to construction framing, what does O.C. usually refer to?
A | O.C. (on center) refers to the measurement from the center of one structural member to the center of another |
B | This means off-center |
C | This does not have a specific meaning to the builder |
D | Refers to the circumference of a space |
Question 25 |
A 2x6 piece of framing lumber actually measures:
A | Varies depending upon the length |
B | 2 x 6, there is no difference |
C | 1.5" x 5.5" due to milling |
D | 12" (2x6) |
Question 26 |
Why must extreme care be taken when drilling or cutting a slab-on-grade?
A | Plumbing, electrical or refrigeration pipes may be severed. Rebar may be severed weakening the slab |
B | As long as any pipe buried in the slab is not cut then the slab may be freely cut |
C | Odors might come through the opening |
D | An air leak may develop |
Question 27 |
The slab on grade is best suited in which geographic locations?
A | Earthquake prone areas |
B | Southern climates where freezing conditions do not exist |
C | Hurricane prone areas |
D | Areas of active volcanoes |
Question 28 |
Sheetrock, forming the ceiling flat surface, is fastened to the:
A | Wall joists |
B | Roof rafters |
C | Ceiling joists |
D | Roof joists |
Question 29 |
After a post tension slab is poured, at what curing stage are the cables tightened to their full tension?
A | While the concrete is still wet |
B | Only after the concrete has completely cured |
C | Before the concrete is poured |
D | Prior to full curing |
Question 30 |
The HEADER in a wall is located nearest the:
A | Top |
B | Bottom |
C | Middle |
D | Side |
Question 31 |
Reinforcement bar is referred to as:
A | Rubar |
B | Rebar |
C | ReinBar |
D | Torsion bar |
Question 32 |
HVAC technicians must be aware that roofs can be slippery when wet. Which roof would likely be the most slippery when wet?
A | Slate tiles |
B | Asphalt shingles |
C | OSB wood |
D | None of the above |
Question 33 |
The post tension slab uses cables under tension to apply 25,000 pounds of tension from side to side. What are these cables called?
A | Tenions |
B | Tensils |
C | Kanurter tongs |
D | Tendons |
Question 34 |
Long duct routing in an attic (or other unconditioned spaces) contribute to poor system performance. Which answer lists the course of action that a HVAC Technician should take if he finds that the ducting systems is excessively long?
A | Ensure that all insulation is in it's correct place |
B | Do nothing. It's not the job of the HVAC Technician to be concerned with these things |
C | Consult with the Supervisor and point out the concerns |
D | Both A & C |
Question 35 |
Under what conditions can a 'glulam' be bored for refrigerant line installation?
A | When needed to complete the installation |
B | Only on direction of the Architect, Engineer or Manufacturer |
C | When the bored hole does not exceed 15% of the total lumber dimension |
D | Anytime the bored hole does not exceed 2" in diameter |
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