Arc Exam

-If the fire chamber is too shallow, what may happen? smoke into the room

-The part of the fireplace designed to protect the floor from sparks is the hearth.

-The hearth should extend 16” in front of the fireplace.

-The damper regulates the flow of air and down drafts of cold air when the

fireplace is not in operation.

-The damper is placed 8 inches above the top of the fireplace.

-The smoke shelf causes cold air flowing down the chimney to be deflected

upward into rising warm air from a fire.

-The area in the fireplace just above the smoke shelf and damper is the smoke chamber.

-The flue liner is typically made from clay.

-There should be a minimum of 4 inches on all sides of the flue with a lining.

-Each fireplace should have its own fluke.

-A rule of thumb to follow in selecting the proper flue size is to choose a flue that has at

least 1/10 the sectional area of the fireplace opening.

-Most codes require that the flue extend, at least, 2‘ above the highest point of the

roof that is within 10’ of the flue.

-Allow a minimum clearance of 2” between the chimney and framing at its front and

sides. Allow 4” clearance at the back of the chimney and framing.

The most common type of lintel used above the openings in fireplaces is angle steel.

The purpose of a saddle or cricket is to block water from going down.

Fireplaces are classified by their basic design, name all five: two face opposite, two face adjacent, single-face, three-face, prefabricated metal

-A fireplace that has only one front opening is known as a single-face

fireplace.

-A fireplace that is open on the front and one side (not the back) is known as a

two-face adjacent fireplace.

Wood- or coal-burning stoves are ordinarily used as local sources of heat.

Name the two main types of stoves.

1. radiant 2. curculating

-A low-efficiency stove is typically 30-30% efficient.

-Name three functions that are unique to a high-efficiency stove.

-baffles

-heat exchange

-long smoke paths
-Stairs connecting the first and second floor or from a split foyer to the first floor are known as

main stairs.

-A stair without a wall on one or both sides is a(n) open stair.

-Identify the six general types of stairs. straight run, L, U, Winder, Spiral, Circular

-The double L stairs always has two landings along the first flight of steps.

-The type of stairs that has two parallel flights of steps is the U stairs.

-Pie-shaped steps that are substituted for a landing are generally associated with

winder stairs.

-Treads are the horizontal members of each step.

-The vertical faces that run from one tread to another are called risers.

-The stringers are the vertical members that support the treads and risers.

-The two main types of stringers used in home stair construction are planked

and housed.

-The minimum recommended width for main stairs is 3’.

-The rounded part of the tread that extends past the face of the riser is the housing.

-The ideal riser height is between 7 and 7-5/8.

-The proper slope angle for a set of main stairs should be between 30° and 35°.

-The total floor-to-floor vertical height of the stairs is known as the total rise.

-The total horizontal length of the stairs is the total run.

-The sum of one riser and one tread should equal 17” to 18”.

-Minimum headroom for stairs is 6’-8”.

-Vertical members that support the handrail on open stairs are known as balusters.

-newels are the main posts of the handrail at the top, bottom, and points where

the stairs change direction.
-List the three basic areas into which a residential structure may be divided.

living area, sleeping area, and service area

-The living area of a residential structure comprises about 1/3 of the total area of the house.

-What does IRC stand for? international residency code

-The primary consideration in designing a functional house plan is traffic circulation.

-What is the general purpose of the living room? center of activity

-An average size living room is about 250 square feet.

-A dining room measuring 16’-0” x 20’-0” would be considered a large-size dining room.

-To accommodate a person using a wheelchair, a space of 32 inches should be provided

around furniture in the dining room.

-List the three basic types of entryways.

main, service, special purpose

-Standard entry door width is 3 and height is 6.

-What is the purpose of the foyer? a place to greet people

-What is the purpose of the family room? a place for hobbies or play

-To accommodate a person using a wheelchair, a space of 4/5 feet should be provided

around furniture in the family room.

-A porch without a roof is called a(n) deck.

-Typically, about 1/3 of the house is dedicated to the sleeping area.

-The master bedroom is separate from the remaining bedrooms in a split bedroom plan.

-The IRC recommends 70 square feet as the minimum size bedroom.

-An average size bedroom would be between 125 and 175 square feet.

-The minimum size of a closet is usually 6 feet

-The minimum depth of a clothes closet is 24 inches and 30 is desirable.

-List four types of doors generally used for closets.

sliding, accordion, bi-fold, flush

-Placing the bedroom door near a corner of the room usually results in less wasted

space.

-A 3⁄4 bath contains only a sink, toilet, and shower.

-A small size bathroom is 5’-8’.

-In some instances, a pocket door is used to subdivide the bath into two compartments.

-Bathroom sinks are called lavatories and toilets are called water closets.

-Toilets require a space of 30 inches for installation.

-The most common bathtub size is 30× 60.

-The maximum acceptable length of the work triangle in a kitchen is 21 feet.

-Identify the six basic kitchen designs.

straight line, L shape, corridor, island, U shape, peninsula.

-At least 4 feet clearance should be allowed on all sides of the island for easy access.

-Kitchen base cabinets are normally 34 ½ high.

-The standard depth of a kitchen base cabinet is 24”.

-The width increment of a standard kitchen base cabinet is 3 inches.

-Exhaust fumes from a kitchen hood fan should not be expelled into the attic.

-Doors leading in and out of a laundry room must be a minimum of 2’-8”.

-The size of a double-car garage are 20×20 for a smaller size or as large as 25×25.

-The minimum width of a driveway for a single-car garage is 10"‘.

What is the purpose of a floor plan? identifies the location and dimensions of everything the builders need to know

-A floor plan is not a typical top view, but a section drawing.

-A plain opening or archway is indicated by a dashed line on the floor plan.

-List the three items generally given on the floor plan about a set of stairs?

direction of flight, width, #of risers

-Interior walls are usually dimensioned to the center of the wall.

-Exterior walls are dimensioned to the outside of the wall.

-In frame wall construction, windows and doors are dimensioned to their center line.

-In a solid masonry wall, windows and doors are dimensioned to their opening.

-The scale of most residential floor plans is ¼.

-The dimensions necessary for staking out the house are found on the plot plan.

-The unit method may be used to check the accuracy of all

corners of the house once it is staked out.

-The excavation for footings must extend at least 6 below the average maximum

frost depth.

-footings increase the supporting capacity of the foundation wall by dispersing

the load over a larger area.

-The size and type of footing should be appropriate for the weight of the building and

-the load-bearing capacity of the soil.

-The footing thickness is equal to the foundation wall thickness and the footing width is

twice the wall thickness.

-The footing for a residential structure is generally 16 inches wide when the foundation

wall is 8 inches thick.

-A steel reinforcing is required in footings located over soft or poorly

drained soils.

-The foundation walls are part of the house that extends from the first floor to the

footing.

-The most common foundation type is the t-foundation.

-A basement sump should be installed in poorly drained oils or where groundwater

is a problem.

-Basement walls should extend at least 8 inches above the finished grade in wood frame

construction (2x4 or 2x6 exterior walls).

-The materials commonly used to damp-proof basement walls are hot tar

and cement base paint.

-The minimum clear height between a basement floor and bottom of the floor joists should

be 7 feet. This height allows some space for heating ducts, pipes, and beams.

-When the span is too great for unsupported floor joists, a beam is placed an

equal distance from each outside wall or under a bearing wall.

-A lintel is a horizontal structural member that supports the load over an opening

such as a door or window.

-List the four ingredients in concrete:

sand, stone, gravel, water

-Cold weather increases the curing time of concrete.

-Large areas of concrete are likely to crack due to temperature change. This cracking may

be minimized or controlled through the use of contraction joints.

-The nominal size of a concrete block is 8”x16”x8”. The actual size is: 7-5/8×7-5/8×15-5/8.

-A foundation plan is a section view that provides all the information needed by

the excavators, masons, carpenters, cement workers and all others needed to build the

foundation.

-Why is a basement plan a logical choice for cold climates?

dig below the frost line

-How is a basement plan different from a foundation plan?

its a combination of foundation and floor

-The foundation/basement plan is drawn from information presented on the

floor plan, plot plan, and elevations.

-A brick ledge is 4” wide.

-Residential foundation plans are usually drawn or plotted at ¼ scale.

-Floor trusses are generally spaced 16” OC. (See Fig. 14-8)

-A hidden line is used to indicate footings.

-A center line is used to indicate a supporting beam.