Construction Safety Practices

3 feet

Six randomly distributed broken wires in one rope lay or three broken wires in one strand in one rope lay.

With safety guards or protection hoods

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

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

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

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

<p>A momentary contact &quot;on-off&quot; control and may have a lock-on control</p> Signup and view all the answers

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

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

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

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

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

<p>Double insulated</p> Signup and view all the answers

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

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

<p>by stepping back the layers and cross-keying the bags at least every 10 bags high</p> Signup and view all the answers

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

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

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

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

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

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

<p>a cross brace in a shoring system has failed</p> Signup and view all the answers

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

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

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

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

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

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

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

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

<p>Be continuous and not have splices between anchors</p> Signup and view all the answers

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

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

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

<p>When psi is reduced to less than 30 and effective chip guarding and PPE are provided</p> Signup and view all the answers

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

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

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

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

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

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

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

<p>19.50%</p> Signup and view all the answers

<p>36&quot;</p> Signup and view all the answers

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

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

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

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

<p>19 inches or more</p> Signup and view all the answers

<p>after every rainstorm</p> Signup and view all the answers

<p>24 inches</p> Signup and view all the answers

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

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

<p>1:1</p> Signup and view all the answers

<p>Stable Rock</p> Signup and view all the answers

<p>30&quot;</p> Signup and view all the answers

<p>The wire rope is replaced</p> Signup and view all the answers

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

The minimum distance the ladder must extend above the upper ledge when using a portable ladder.

A rope used on a scaffold must be replaced if it has six randomly distributed broken wires in one rope lay or three broken wires in one strand in one rope lay.

Abrasive wheels used for grinding must be equipped with safety guards or protection hoods to protect workers from flying debris.

According to OSHA, only the excavator has the authority to change or adjust the shoring method of an excavation.

An LP Gas container containing 650 lbs. must be stored at least 10 feet away from the nearest building.

OSHA limits the maximum allowable flammable liquid storage in a room (not in an approved container) to 25 gallons.

According to OSHA, only the employee hooking the load is permitted to work under a suspended load during steel erection.

All hand-held power tools, including drills, grinders, and saws, must be equipped with a momentary contact "on-off" control and may have a lock-on control.

Ladder jack scaffolds, used for light duty, cannot exceed a height of 20 feet above the floor or ground.

All portable, power-driven circular saws must be equipped with guards above and below the base plate.

A comprehensive emergency service plan is needed for larger, complex projects. This plan must include evacuation procedures, among other things.

Each employee on a single-point or two-point adjustable suspension scaffold must be protected by both a personal fall arrest system and a guardrail system.

Employees constructing a leading edge are required to wear fall protection when the distance to the lower level is 6 feet or more.

Electric hand tools must be either grounded or double insulated for electrical safety.

Employees at the edge of an excavation must be protected from falling by guardrails, fences, or barricades when the excavation depth is 6 feet or more and not readily visible.

Excavated or other materials must be stored at least 2 feet away from the edge of an excavation.

According to OSHA requirements, bag materials stored on a jobsite must be stacked by stepping back the layers and cross-keying the bags at least every 10 bags high.

Cranes in regular service must be inspected for air or hydraulic system leakage each shift.

Material stored inside buildings under construction cannot be placed within 10 feet of an exterior wall that does not extend above the top of the stored material.

The contents of a first aid kit should be placed in a weatherproof container with individually sealed packages and checked by the employer at least once a week.

The minimum clearance between scaffolds and insulated power lines with less than 300 volts must be 3 feet.

OSHA requirements for formwork can be found in Subpart Q of the construction industry regulations.

Warning lines shall be flagged with high-visibility material at intervals of no more than 6 feet from the edge of the roof.

A "kickout" occurs in an excavation when a cross brace in a shoring system fails, potentially causing a cave-in.

The minimum difference between work levels without protected sides or edges that require a fall protection system is 6 feet.

An atmosphere with more than 23.5% oxygen by volume is considered an oxygen-enriched atmosphere.

The minimum working clearance around an electrical panel under 150 volts is 3 square feet.

Protective goggles with generic magnification lenses are NOT suitable for employees who wear corrective lenses (glasses).

When working in trenches 4 feet or more deep, a stairway, ladder, ramp, or other means of egress must be located within 25 feet of lateral travel.

Hook-on and attachable ladders used on supported scaffolds over 35 feet high must have rest platforms at maximum vertical intervals of 35 feet.

When testing for atmospheric hazards in a confined space, the first item to test for is oxygen.

When the vertical distance from the working level to the level below is over 10 feet, the safety net must extend a minimum of 13 feet outward from the outermost projection.

Wire ropes on catenary scaffolds should be continuous and not have splices between anchors.

There should be no cross connection, open or potential, between a system furnishing potable water and a system furnishing nonpotable water to prevent contamination, according to OSHA building regulations.

A full facepiece mask air-purifying respirator provides 5 times more protection than a half mask.

A system rated for 240 volts would use 4 leads as circuit conductors to provide the proper electrical pathway.

Compressed air can be used for cleaning dust from equipment according to OSHA regulations, only when the pressure is reduced to less than 30 psi and effective chip guarding and personal protective equipment are provided.

Anchorages used for personal fall arrest equipment attachment must be independent of any anchorage used for platforms and capable of supporting at least 5000 lbs.

A portable fire extinguisher rated at least 2A must be provided for every 3,000 square feet of protected area, with a maximum travel distance of 100 feet to the nearest extinguisher.

The maximum distance a scaffold platform can be placed from the face for plastering and lathing operations is 18 inches.

Flammable liquids stored outside in piles or groups of containers must be at least 20 feet away from any building.

Temporary circulating room heating devices require a minimum rear clearance of 12 inches.

Temporary radiant room heating devices require a minimum rear clearance of 36 inches.

A guardrail is required for equipment and employees working on a crossover excavation that is 6 feet or more above lower levels.

An oxygen-deficient atmosphere has less than 19.50% oxygen by volume.

The side clearance of a temporary radiant type heater must be at least 36 inches on each side.

The minimum dead weight that an anchorage or structural member must be able to support with an attached lifeline is 5,400 lbs.

Driveways between and around combustible storage piles must be at least 15 feet wide.

Combustible materials can be piled a maximum of 20 feet high.

Open yard storage of portable fire extinguishing equipment should be placed so that the maximum travel distance to the nearest unit is not more than 100 feet.

A stairway or ladder is required at all personnel points of access when there is a break in elevation of 19 inches or more.

Excavations must be inspected every day, plus after every rainstorm.

A clearance of 24 inches must be maintained around the path of travel of fire doors, unless a barricade is provided, in which case no clearance is needed.

Materials should not be stored within 36 inches of a fire door opening.

Oxygen cylinders in storage should be separated from fuel-gas cylinders or combustible materials by a minimum distance of 20 feet.

The maximum allowable slope of an excavation 18 feet deep classified as "Type B" soil is 1:1.

Stable rock is the only soil type that allows for vertical, 90-degree sides in an excavation without shoring or support.

The minimum workspace width in front of an electrical panel box should be at least 30 inches.

Operations involving the use of wire rope that has sustained six randomly distributed broken wires in one rope lay or three broken wires in one strand in one rope lay must be prohibited until the wire rope is replaced.

When 3/4-inch diameter wire rope is used as a sling, a replacement is required when more than 6 inches have been damaged.