Construction Safety Regulations Quiz
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Questions and Answers

What is the minimum distance that a portable ladder needs to extend above the upper ledge?

  • 3 feet (correct)
  • 2 feet
  • 5 feet
  • 4 feet

    • When should a rope being used on a scaffold be replaced?

  • Only when frayed
  • Six randomly distributed broken wires in one rope lay (correct)
  • Four broken wires in total
  • Three broken wires along the length

    • What must abrasive wheels used for grinding be equipped with?

  • Sound dampening materials
  • Safety guards or protection hoods (correct)
  • Protective eyewear
  • Automatic shut-off switches

    • Who has the authority to change or adjust the shoring method of an excavation?

    <p>Excavator</p> Signup and view all the answers

    How many feet must an LP Gas container with 650 lbs be stored away from the nearest building?

    <p>10 feet</p> Signup and view all the answers

    What is the maximum number of gallons of flammable liquid that can be stored in a room without an approved container?

    <p>25 gallons</p> Signup and view all the answers

    Who is permitted to work under a suspended load when erecting steel?

    <p>Employee hooking the load</p> Signup and view all the answers

    What should all hand-held powered tools such as drills and grinders be equipped with?

    <p>Safety guards</p> Signup and view all the answers

    What is the maximum height that all ladder jack scaffolds can exceed without violation?

    <p>20 feet</p> Signup and view all the answers

    What protection must be provided to each employee on a single-point or two-point adjustable suspension scaffold?

    <p>Both a personal fall arrest system and guardrail system</p> Signup and view all the answers

    How far must excavated or other materials be stored from the edge of the excavation?

    <p>2 feet</p> Signup and view all the answers

    What must electric hand tools be equipped with to ensure safety?

    <p>Grounded or double insulated</p> Signup and view all the answers

    What should an emergency service plan address when a project becomes larger and more complex?

    <p>Evacuation procedures</p> Signup and view all the answers

    What is the required method for stacking bag materials on the job site?

    <p>Cross-keying the bags every 10 bags high</p> Signup and view all the answers

    How frequently should cranes in regular service be inspected for leakage in their systems?

    <p>Each shift</p> Signup and view all the answers

    How far must the distance be to the lower level for employees constructing a leading edge to require fall protection?

    <p>6 feet</p> Signup and view all the answers

    At what depth must guardrail systems, fences, or barricades be used to protect employees at the edge of an excavation?

    <p>6 feet or more</p> Signup and view all the answers

    What is the minimum distance stored materials can be from an exterior wall that does not extend above the top of the material?

    <p>10 feet</p> Signup and view all the answers

    How often should the contents of a first aid kit be checked by the employer?

    <p>Once a week</p> Signup and view all the answers

    What type of control does momentary contact control represent?

    <p>Momentary contact 'on-off' control</p> Signup and view all the answers

    What type of guards must portable, power-driven circular saws be equipped with?

    <p>Guards above and below the base plate</p> Signup and view all the answers

    What is the minimum clearance between scaffolds and insulated power lines with less than 300 volts?

    <p>3 feet</p> Signup and view all the answers

    In which Subpart can the OSHA requirements for formwork be found?

    <p>Q</p> Signup and view all the answers

    How far must warning lines be flagged with high-visibility material from the edge of the roof?

    <p>6 feet</p> Signup and view all the answers

    What is the minimum distance without protected sides or edges that requires a fall protection system?

    <p>6 feet</p> Signup and view all the answers

    An oxygen enriched atmosphere contains more than what percentage of oxygen by volume?

    <p>23.5%</p> Signup and view all the answers

    What is the minimum working clearance under an electric panel under 150 Volts?

    <p>3 square feet</p> Signup and view all the answers

    Which type of eye protection is unsuitable for employees who wear corrective lenses?

    <p>Protective goggles with generic magnification lenses</p> Signup and view all the answers

    When employees work in trenches that are 4 feet or deeper, how far can egress be located?

    <p>25 feet</p> Signup and view all the answers

    For hook-on and attachable ladders on a scaffold over 35 feet high, what is the maximum vertical interval for rest platforms?

    <p>35 feet</p> Signup and view all the answers

    What should be the first item tested for when checking for atmospheric hazards in a confined space?

    <p>Oxygen</p> Signup and view all the answers

    What is the maximum allowable distance for a ladder, ramp, or stairway from the work area in trenches?

    <p>25 feet</p> Signup and view all the answers

    What is the minimum distance a safety net must extend outward when the vertical distance to the level below is over 10 feet?

    <p>13 feet</p> Signup and view all the answers

    What requirement exists for wire ropes on catenary scaffolds?

    <p>They must be continuous without splices</p> Signup and view all the answers

    What must be avoided between potable and nonpotable water systems?

    <p>Cross Connection</p> Signup and view all the answers

    How much more protective is a full facepiece mask air-purifying respirator compared to a half mask?

    <p>5x more protective</p> Signup and view all the answers

    If a system is rated for 240v, how many leads are used as circuit conductors?

    <p>4 leads</p> Signup and view all the answers

    When can compressed air be used to clean dust from equipment?

    <p>When pressure is reduced to less than 30 psi</p> Signup and view all the answers

    What is the maximum distance that flammable liquids can be stored from a building?

    <p>20 feet</p> Signup and view all the answers

    What is the minimum required dead weight that an anchorage or structural member must support with a lifeline attached?

    <p>5,400 Lbs</p> Signup and view all the answers

    What is the minimum support capability required for anchorages used for personal fall arrest equipment?

    <p>5000 lbs</p> Signup and view all the answers

    What is the maximum travel distance to the nearest fire extinguisher in a protected area of 3,000 square feet?

    <p>100 feet</p> Signup and view all the answers

    What is the required side clearance for a temporary radiant type heater?

    <p>36 inches</p> Signup and view all the answers

    What is the minimum rear clearance for a temporary circulating room heating device?

    <p>12 inches</p> Signup and view all the answers

    What is the minimum distance that a scaffold platform can be placed from the face for plastering and lathing operations?

    <p>18 inches</p> Signup and view all the answers

    At what height is a guard rail required for cross over excavation?

    <p>6 feet</p> Signup and view all the answers

    What percentage of oxygen by volume defines an oxygen-deficient atmosphere?

    <p>19.5%</p> Signup and view all the answers

    What is the minimum width of driveways between and around combustible storage piles?

    <p>15 feet</p> Signup and view all the answers

    Combustible materials can be piled a maximum of?

    <p>20 feet</p> Signup and view all the answers

    Open yard storage of portable fire extinguishing equipment shall be placed so the maximum travel distance to the nearest unit shall not exceed?

    <p>100'</p> Signup and view all the answers

    Study Notes

    Ladder Safety

    • The minimum distance a ladder must extend above the upper ledge is 3 feet.
    • OSHA: Construction Industry Regulations - 1926.1053(b)(1)

    Rope Safety on Scaffolds

    • A rope used on a scaffold needs replacing when there are six randomly distributed broken wires in one rope lay or three broken wires in one strand in a rope lay.
    • OSHA: Construction Industry Regulations - 1926.451(d)(10)(iii).

    Abrasive Wheel Safety

    • Abrasive wheels must be equipped with safety guards or protection hoods.
    • OSHA: Construction Industry Regulations - 1926.303(c)(1)

    Excavation Shoring Authority

    • The excavator has the authority to change or adjust the shoring method of an excavation.
    • OSHA: Construction Industry Regulations - 1926.652(c)

    LP Gas Container Storage

    • An LP Gas container containing 650 lbs. must be stored 10 feet from the nearest building.
    • OSHA: Construction Industry Regulations - 1926.153(k) Table F-3

    Flammable Liquid Storage

    • The maximum allowable gallons of flammable liquid that can be stored in a room (and not in an approved container) is 25 gallons.
    • OSHA: Construction Industry Regulations - 1926.152(b)(1)

    Suspended Loads during Steel Erection

    • In steel erection, only employees hooking the load are permitted to work under a suspended load.
    • OSHA: Construction Industry Regulations - 1926.753(d)

    Powered Tool Equipment

    • Powered hand tools like drills, tappers, fasteners, and grinders, with wheels larger than 2 inches in diameter, must have a momentary contact "on-off" control, and may have a lock-on control.
    • OSHA: Construction Industry Regulations - 1926.300(d)(2)

    Ladder Jack Scaffolds

    • Ladder jack scaffolds have a maximum height of 20 feet above the floor or ground.
    • OSHA: Construction Industry Regulations - 1926.452(k)(1)

    Portable Power Saws

    • Portable, power-driven circular saws must have guards above and below the base plate.
    • OSHA: Construction Industry Regulations - 1926.304(d)

    Emergency Service Plans

    • Project plans for emergency service must include evacuation procedures when the project becomes complex.
    • OSHA: Construction Industry Regulations - 1926.35(d)

    Suspension Scaffold Protection

    • Employees on single-point or two-point adjustable suspension scaffolds require both a personal fall arrest system and a guardrail system.
    • OSHA: Construction Industry Regulations - 1926.451(g)(1)(ii)

    Leading Edge Protection

    • Each worker erecting a leading edge shall be protected from falling when the distance to the lower level is 6 feet or more.
    • OSHA: Construction Industry Regulations - 1926.501(b)(2)(i)

    Grounded or Double Insulated Tools

    • Electric hand tools must be either grounded or double insulated.
    • OSHA: Construction Industry Regulations - 1926.302(a)(1)

    Excavation Protection

    • Workers at excavation edges need protection (guardrails, fences, or barricades) when the excavation depth is 6 feet or more, or when plant growth or barriers obstruct visibility.
    • OSHA: Construction Industry Regulations - 1926.501(b)(Z)(i).

    Excavation Material Storage

    • Excavated or other materials must be stored at least 2 feet from excavation edges.
    • OSHA: Construction Industry Regulations - 1926.651(j)(2).

    Bag Material Storage Requirements

    • Bag materials on job sites need to be stacked by stepping back the layers and cross-keying every 10 bags.
    • OSHA: Construction Industry Regulations - 1926.250(b)(4)

    Crane Inspections

    • Cranes in regular service must be inspected each shift for leakage in air or hydraulic systems.
    • OSHA: Construction Industry Regulations - 1926.1412(d)(1)(iii).

    Material Storage Inside Construction Buildings

    • Materials stored inside construction buildings cannot be placed within 10 feet of exterior walls that do not extend above the top of the materials.
    • OSHA: Construction Industry Regulations - 1926.250(b)(1)

    First Aid Kit Maintenance

    • First aid kits must have contents in a weatherproof container with sealed packages and should be checked weekly by employers.
    • OSHA: Construction Industry Regulations - 1926.50(d)(2).

    Scaffold and Power Line Clearance

    • The minimum clearance between scaffolds and insulated power lines with less than 300 volts must be 3 feet.
    • OSHA: Construction Industry Regulations - 1926.451(f)(6)

    Formwork Requirements

    • OSHA requirements for formwork are in Subpart Q.
    • OSHA: Construction Industry Regulations - 1926.703(a).

    Warning Lines on Roofs

    • Warning lines on roofs need to be flagged with high-visibility material a maximum of 6 feet distance from the edge of the roof.
    • OSHA: Construction Industry Regulations - 1926.502(f)(2)(i).

    Excavation Kickout Safety

    • A "kickout" in an excavation means a cross brace in a shoring system has failed.
    • OSHA: Construction Industry Regulations - 1926.650(b) Definitions

    Minimum Working Clearance for Electrical Panels

    • The minimum working clearance for electrical panels under 150 volts is 3 square feet
    • OSHA: Construction Industry Regulations - 1926.403 Table K-1

    Eye Protection for Corrective Lens Wearers

    • Protective goggles with generic magnification lenses are NOT suitable for employees who wear corrective lenses (glasses).
    • OSHA: Construction Industry Regulations - 1926.102(a)(3)

    Trench Egress Requirements

    • When employees work in trenches 4 feet deep or more, the means of egress (stairway, ladder, ramp etc.) requires maximum travel laterally shall be no more than 25 feet.
    • OSHA: Construction Industry Regulations - 1926.651(c)(2)

    Scaffold Ladder Rest Platforms

    • When using hook-on and attachable ladders on scaffolds over 35 feet in height, rest platforms must have maximum vertical intervals of 35 feet at maximum.
    • OSHA: Construction Industry Regulations - 1926.451(e)(2)(iii)

    Confined Space Testing

    • When testing for atmospheric hazards in a confined space, the first item to test for is oxygen.
    • OSHA: Construction Industry Regulations - 1926.1203(e)(2)(iii).

    Safety Net Extension Distances

    • When the distance from a working level to the level below is over 10 feet, safety nets must extend outward from the outermost projection a minimum of 13 feet.
    • OSHA: Construction Industry Regulations - 1926.502(c)(2)

    Wire Rope on Catenary Scaffolds

    • Wire ropes on catenary scaffolds must be continuous and not connected with splices between anchors.
    • OSHA: Construction Industry Regulations - 1926.452(r)(4)

    Water and Non-potable Water System Separation

    • There must be no cross-connection between systems furnishing potable water and non-potable water.
    • OSHA: Construction Industry Regulations - 1926.51(b)(2)

    Face Piece Air-Purifying Respirator Protection Factor

    • A full facepiece mask air-purifying respirator has a protection factor five times greater than a half mask.
    • OSHA: Construction Industry Regulations - 1910.134(d)(3)(i)(A) Table 1

    Electrical Conductor Lead Requirements

    • If an electrical system is rated for 240V, then four leads are required as circuit conductors
    • OSHA: Construction Industry Regulations - 1926.404(f)(1)(iv)

    Compressed Air for Cleaning Equipment

    • OSHA regulations do not expressly state when compressed air can be used for cleaning equipment.

    Portable Fire Extinguisher Requirements

    • For every 3,000 square feet of protected building area, a portable fire extinguisher rated at least 2A must be available and accessible within a 100-foot distance.
    • OSHA: Construction Industry Regulations - 1926.150(c)(1)(i).

    Scaffold Platform Placement for Plastering/Lathing

    • Scaffold platforms for plastering and lathing operations must be placed no further than 18 inches from the face of the work.
    • OSHA: Construction Industry Regulations - 1926.451(b)(3)(ii)

    Flammable Liquid Storage Distance from Buildings and piles

    • Flammable liquids should be stored at least 20 feet from a building in piles or groups of containers.
    • OSHA: Construction Industry Regulations - 1926.152(c)(1)

    Temporary Heating Device Rear Clearance

    • Temporary circulating room heating devices need at least 12 inches of rear clearance.
    • OSHA: Construction Industry Regulations - 1926.154(b)(2) Table F-4

    Temporary Radiant Room Heater Side Clearance

    • Temporary radiant room heating devices need at least 36 inches of side clearance.
    • OSHA: Construction Industry Regulations - 1926.154 (Table F-4)

    Anchorage Minimum Dead Weight

    • Anchorages or structural members with attached lifelines must be able to support a minimum dead weight of 5,400 lbs.
    • OSHA: Construction Industry Regulations - 1926.104(b)

    Combustible Storage Pile Driveway Width

    • Driveways between and around combustible storage piles must be at least 15 feet wide.
    • OSHA: Construction Industry Regulations - 1926.151(c)(2)

    Combustible Material Pile Height

    • Combustible materials can be piled to a maximum height of 20 feet.
    • OSHA: Construction Industry Regulations - 1926.151(c)(1)

    Open Yard Storage Distance

    • Open yard storage of portable fire extinguishing equipment must have a maximum travel distance to the nearest unit of 100 feet.
    • OSHA: Construction Industry Regulations - 1926.151(c)(6)

    Stairway/Ladder Provision for Elevation Change

    • Stairways or ladders must be provided at all points of access where there is a break in elevation of 19 inches or more.
    • OSHA: Construction Industry Regulations - 1926.1051(a)

    Excavation Inspection Frequency

    • Excavation sites must be inspected daily, and after every rainstorm.
    • OSHA: Construction Industry Regulations - 1926.651(k)(1)

    Fire Door Clearance

    • A 24-inch clearance must be maintained around the travel path of fire doors; any barricade needs no clearance.
    • OSHA: Construction Industry Regulations - 1926.151(d)(Z)

    Fire Door Storage Restriction

    • Materials shall not be stored within 36 inches of a fire door opening.
    • OSHA: Construction Industry Regulations - 1926.151(d)(Z)

    Oxygen Cylinder Storage Distance

    • Oxygen cylinders should be stored at least 20 feet from fuel-gas cylinders or combustible materials.
    • OSHA: Construction Industry Regulations - 1926.350(a)(10)

    Excavation Slope for Type B Soil

    • The maximum allowable slope for an 18' deep Type B soil excavation is 1:1.
    • OSHA: Construction Industry Regulations - Subpart P Appendix B Table B-1

    Soil Type for Vertical Excavation Sides

    • Stable Rock allows for excavation with vertical 90-degree sides that remain intact upon exposure.
    • OSHA: Construction Industry Regulations - Subpart P Appendix B Table B-1

    Electrical Panel Workspace Minimum Width

    • The minimum width of a workspace in front of an electrical panel box is 30 inches.
    • OSHA: Construction Industry Regulations - 1926.403(i)(1)(i)

    Wire Rope Replacement Criteria

    • Six randomly distributed broken wires in a rope lay or three in a strand, require replacing the rope.
    • OSHA: Construction Industry Regulations - 1926.1413(a)(4)(ii)(B).

    Damaged Wire Rope Length Before Replacement

    • If a 3/4" wire rope is used as a sling, up to 6 inches of damage can occur before a replacement is required
    • OSHA: Construction Industry Regulations - 1926.251(c)(4)(iv)

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    Description

    Test your knowledge on essential construction safety regulations and practices with this quiz. Questions cover ladder safety, scaffold use, hazardous materials, and equipment requirements to ensure a safe working environment. Ideal for construction professionals and safety trainers.

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