RBC EXAM QUESTIONS
AND ANSWERS
What is required for all employees prior to entering a confined space? - Answer- All
employees required to enter into confined or enclosed spaces shall be instructed as to
the nature of the hazards involved, the necessary precautions to be taken, and in the
use of protective and emergency equipment required
What is required of a container that contains flammable wastes? - Answer- Containers
used for flammable wastes shall be equipped with covers
How often must combustible scrap be removed? - Answer- Combustible scrap and
debris shall be removed at regular intervals,
What should be provided for persons exposed to corrosive materials - Answer- Where
eyes or body may be exposed to injurious corrosive materials, suitable facilities for
quick drenching or flushing
What is the minimum foot candle illumination required for a construction corridor? -
Answer- Construction areas shall be lighted with a 5 foot candles of illumination
How many toilets must be provided for 20 or less construction employees? - Answer- 1
toilet
Where is an employee prohibited from consuming food or beverages? - Answer- No
employee shall be allowed to consume food or =beverages in a toilet room nor in any
areas exposed to toxic material.
Who is responsible for maintenance of employee owned equipment? - Answer-
"Employee-owned equipment." Where employees provide their own protective
equipment, the employer shall be responsible to assure its adequacy, including proper
maintenance, and sanitation of such equipment
What is the predominating color for a DANGER sign? - Answer- Danger signs shall
have res as the predominating color for the upper panel; black outline on the borders;
and a white lower panel for additional sign wording
,What is the predominant color for a CAUTION sign? - Answer- Cautions signs shall
have YELLOW as the predominating color for the upper panel; black outline on the
borders; and white lower panel for additional sign wording
Material placed inside a building must be kept how far from a hoist way? - Answer-
Material stored inside buildings under construction shall not be placed within 6 feet of
any hoist way or inside floor openings, nor within 10 feet of an exterior wall
What is the maximum height that a lumber pile may be stacked? - Answer- Lumber piles
shall not exceed 20 feet in height provided that lumber to be handled manually shall not
be stacked more than 16 feet high
What is the maximum that materials may be dropped before a chute is required? -
Answer- Whenever materials are dropped more than 20 feet to any point lying outside
the exterior walls of the building, an enclosed chute of wood, or equivalent material,
shall be used
A wall on a drawing with a scale of 1/4" =1-foot measures 5 1/2". How long is the wall in
feet? - Answer- 22' - (5 1/2= 5 2/4 5X4=20 +2 =22')
A line on a drawing is composed of long and short dashes. What is the name of this
line? - Answer- A centerline
Most construction lumber is cut ____ sawn - Answer- Flat sawn
What is the minimum nominal thickness of the ridge board? - Answer- 1 inch
How Many jack studs will be required for a 2-2x12 header in an interior bearing wall
supporting one floor only, building width of 28', and a span of 7'-0" - Answer- 2 Jack
stud required
What is the maximum hole that may be cut in a 2X12 nominal floor joist? - Answer- 4"
Inches
What size strap is required if a top plate is notched more than 50% of its width? -
Answer- 16 gage in thickness and 1 1/2" wide
The end of a wood joist must bear on a wood beam by at least _____inches? - Answer-
1½
Lifelines shall be secured above the point of operation to an anchorage capable of
supporting a minimum dead weight of: - Answer- Lifeliness shall be secured above the
point of operation to an anchorage or structural member capable of supporting a
minimum dead weight of 5,400 pounds
, What is the maximum amount of flammable liquid that can be stored outside of an
approved storage cabinet? - Answer- No more than 25 gallos of flammable or
combustible liquids shall be stored in a room outside of an approved storage cabinet
The dimension of fine aggregate in concrete is up to ___ " in diameter and coarse
aggregate is larger than_____". - Answer- 1/4 for both
Concrete gains most of its strength in how many days? - Answer- 28 days
In what section of the span of a floor joist is it NOT permitted to cut a notch? - Answer-
Middle third
What material is required for the door of an ash dump cleanout? - Answer- Ferrous
metal or masonry
A cricket is required when the width of a chimney is greater than _____inches. -
Answer- 30"
In what direction must the access gate of a pool swing? - Answer- Outwards
What is the minimum ceiling height over a bathtub? - Answer- 6'-8"
What is the maximum unsupported height of a pier consisting of 12"X16" hollow core
blocks filled with type S mortar? - Answer- 120"
What is the least outside circular diameter of a handrail? - Answer- 1 1/4"
Insulation shall have a smoke-developed index not to exceed? - Answer- Not to exceed
450
From where must a smoke alarm draw its primary power? - Answer- building wiring
What is the live load of an attic with habitable space? - Answer- 30 #
What is the required width and height of the egress door?___X___? - Answer- 32X78
The header is an exterior bearing wall of a building that is 28 feet wide, 50 pound snow
load, supports a roof, ceiling and one center bearing floor. If 3-2X12S are used, what is
the allowable span? - Answer- 8'-0"
How far into concrete must anchor bolts extend? - Answer- 7"
What is the maximum height of the backfill for a play masonry foundation wall, 8" high
and 8" thick, is constructed in type GW soil? - Answer- 5'
AND ANSWERS
What is required for all employees prior to entering a confined space? - Answer- All
employees required to enter into confined or enclosed spaces shall be instructed as to
the nature of the hazards involved, the necessary precautions to be taken, and in the
use of protective and emergency equipment required
What is required of a container that contains flammable wastes? - Answer- Containers
used for flammable wastes shall be equipped with covers
How often must combustible scrap be removed? - Answer- Combustible scrap and
debris shall be removed at regular intervals,
What should be provided for persons exposed to corrosive materials - Answer- Where
eyes or body may be exposed to injurious corrosive materials, suitable facilities for
quick drenching or flushing
What is the minimum foot candle illumination required for a construction corridor? -
Answer- Construction areas shall be lighted with a 5 foot candles of illumination
How many toilets must be provided for 20 or less construction employees? - Answer- 1
toilet
Where is an employee prohibited from consuming food or beverages? - Answer- No
employee shall be allowed to consume food or =beverages in a toilet room nor in any
areas exposed to toxic material.
Who is responsible for maintenance of employee owned equipment? - Answer-
"Employee-owned equipment." Where employees provide their own protective
equipment, the employer shall be responsible to assure its adequacy, including proper
maintenance, and sanitation of such equipment
What is the predominating color for a DANGER sign? - Answer- Danger signs shall
have res as the predominating color for the upper panel; black outline on the borders;
and a white lower panel for additional sign wording
,What is the predominant color for a CAUTION sign? - Answer- Cautions signs shall
have YELLOW as the predominating color for the upper panel; black outline on the
borders; and white lower panel for additional sign wording
Material placed inside a building must be kept how far from a hoist way? - Answer-
Material stored inside buildings under construction shall not be placed within 6 feet of
any hoist way or inside floor openings, nor within 10 feet of an exterior wall
What is the maximum height that a lumber pile may be stacked? - Answer- Lumber piles
shall not exceed 20 feet in height provided that lumber to be handled manually shall not
be stacked more than 16 feet high
What is the maximum that materials may be dropped before a chute is required? -
Answer- Whenever materials are dropped more than 20 feet to any point lying outside
the exterior walls of the building, an enclosed chute of wood, or equivalent material,
shall be used
A wall on a drawing with a scale of 1/4" =1-foot measures 5 1/2". How long is the wall in
feet? - Answer- 22' - (5 1/2= 5 2/4 5X4=20 +2 =22')
A line on a drawing is composed of long and short dashes. What is the name of this
line? - Answer- A centerline
Most construction lumber is cut ____ sawn - Answer- Flat sawn
What is the minimum nominal thickness of the ridge board? - Answer- 1 inch
How Many jack studs will be required for a 2-2x12 header in an interior bearing wall
supporting one floor only, building width of 28', and a span of 7'-0" - Answer- 2 Jack
stud required
What is the maximum hole that may be cut in a 2X12 nominal floor joist? - Answer- 4"
Inches
What size strap is required if a top plate is notched more than 50% of its width? -
Answer- 16 gage in thickness and 1 1/2" wide
The end of a wood joist must bear on a wood beam by at least _____inches? - Answer-
1½
Lifelines shall be secured above the point of operation to an anchorage capable of
supporting a minimum dead weight of: - Answer- Lifeliness shall be secured above the
point of operation to an anchorage or structural member capable of supporting a
minimum dead weight of 5,400 pounds
, What is the maximum amount of flammable liquid that can be stored outside of an
approved storage cabinet? - Answer- No more than 25 gallos of flammable or
combustible liquids shall be stored in a room outside of an approved storage cabinet
The dimension of fine aggregate in concrete is up to ___ " in diameter and coarse
aggregate is larger than_____". - Answer- 1/4 for both
Concrete gains most of its strength in how many days? - Answer- 28 days
In what section of the span of a floor joist is it NOT permitted to cut a notch? - Answer-
Middle third
What material is required for the door of an ash dump cleanout? - Answer- Ferrous
metal or masonry
A cricket is required when the width of a chimney is greater than _____inches. -
Answer- 30"
In what direction must the access gate of a pool swing? - Answer- Outwards
What is the minimum ceiling height over a bathtub? - Answer- 6'-8"
What is the maximum unsupported height of a pier consisting of 12"X16" hollow core
blocks filled with type S mortar? - Answer- 120"
What is the least outside circular diameter of a handrail? - Answer- 1 1/4"
Insulation shall have a smoke-developed index not to exceed? - Answer- Not to exceed
450
From where must a smoke alarm draw its primary power? - Answer- building wiring
What is the live load of an attic with habitable space? - Answer- 30 #
What is the required width and height of the egress door?___X___? - Answer- 32X78
The header is an exterior bearing wall of a building that is 28 feet wide, 50 pound snow
load, supports a roof, ceiling and one center bearing floor. If 3-2X12S are used, what is
the allowable span? - Answer- 8'-0"
How far into concrete must anchor bolts extend? - Answer- 7"
What is the maximum height of the backfill for a play masonry foundation wall, 8" high
and 8" thick, is constructed in type GW soil? - Answer- 5'
