Part I Find the number of the standards
Write the number of the standard that is being described. It can be from 1926 or the 1910 supplement in your OSHA CFR manual.
EXAMPLE: A competent person must perform frequent and regular inspections of the jobsite, tools, and equipment.
ANSWER: 1926.20 (b) (2)
1. Laser unit in operation should be set up above employees’ heads.
2. There shall be no cross connection between a system furnishing potable water and a system furnishing non potable water.
3. A continuing and effective vermin control plan must be in place when the presence of vermin is detected.
4. Each end of a platform, unless cleated or otherwise restrained by hooks or equivalent means, shall extend over the centerline of its support by at least 6 inches.
5. Employees exposed to vehicular traffic shall be provided with and shall wear warning vests.
6. Employees shall not be permitted under loads handled by lifting or digging equipment.
7. Manufactured equipment that is used for excavation protective systems shall be used in a manner consistent with manufacturers’ recommendations.
8. Wood platforms shall not be covered with opaque finishes.
9. The use of repaired rope for suspension rope is prohibited.
10. Gasoline powered equipment and hoists shall not be used on suspension scaffolds.
1. Name four (4) things that employees who use scaffolds must be trained in and list the numbers of the standards in which they are found.
2. Name three (3) topics in which employees who erect scaffold must be trained and list the number of the standard in which they are found.
3. Name three (3) circumstances in which an employee must be retrained in the safe use of scaffolds and the number of the standard where the circumstances may be found.
Part III Multiple Choice
______ 1. All scaffolds and scaffold components shall be capable of supporting:
a. two times the maximum load
b. three times the maximum load
c. four times the maximum load
d. six times the maximum load
______ 2. Scaffolds shall be constructed and loaded in accordance with their design. The design shall be done by a:
b. Competent person
c. Qualified person
d. E & D director
_______ 3. The space between platform planks shall be no wider than:
a. 1 inch
b. 6 inches
c. ¼ inch
d. The width of a person’s foot
_______ 4. The minimum width of a scaffold platform is:
a. 24 inches
b. 60 inches
c. 18 inches
d. 30 inches
______ 5. Unless guardrail systems and/or personal fall arrest systems are used the maximum distance between the platform and the face of the work surface is:
a. 8 inches
b. 14 inches
c. 12 inches
d. 20 inches
_______ 6. Unless planks are nailed or otherwise restrained from movement the overlap must be at least:
a. 6 inches
b. 18 inches
c. 12 inches
d. 14 inches
________ 7. Scaffold planks may be coated periodically with wood preservatives, fire retardant finishes, and slip resistant finishes as long as the coatings:
a. are not flammable
b. have been approved by the company
c. are not applied while the platforms are in use
d. do not obscure the top or bottom surfaces
________ 8. Scaffold components of different manufacturers shall not be intermixed unless:
a. they can be attached using minimal force
b. they have been approved by the company
c. the components fit together without force
d. no other equipment is available
________ 9. Scaffolds shall bear on adequate firm foundations such as:
a. boxes and barrels
c. base plates set on mudsills
d. loose materials piled high enough to achieve level
________ 10. Footings that scaffolds rest on shall be:
a. level, sound, and rigid
b. capable of supporting the loaded scaffold without settling or displacement
c. constructed of a minimum 31-inch-long 2 x 10 lumber
d. both a and b
________ 11. Ladders or other means of acceptable access must be provided to scaffold platforms whenever the point of access is greater than:
a. 22 inches
b. 2 feet
c. 16 ¾ inches
d. 14 inches
________ 12. Scaffold frames can be used as a means of access only if they:
a. are specifically designed by the manufacturer and constructed for use as ladder rungs
b. have no loose parts, that could interfere with the act of climbing
c. have coupling pins that align the frames
d. have cross braces fully installed
________ 13. Cross braces can only be used as a means of access or egress when:
a. no other means of access or egress is feasible
b. employees have been trained in cross brace climbing
c. the ladder access is more than 50 feet away
d. cross braces should never be used for access and egress.
________ 14. Scaffolds and scaffold components shall not be loaded in excess of their maximum intended loads as follows:
a. light duty is not more than 25 PSF
b. medium duty is no more than 50 psf
c. heavy duty is no more than 75 psf
d. all of the above
________ 15. Scaffolds and scaffold components shall be inspected for visible defects by a competent person:
a. before each work shift, and after any occurrence which could affect a scaffold’s structural integrity
b. at the employer’s discretion
c. every thirty days
d. at regular intervals
________ 16. When a scaffold is weakened to the point it cannot support 4 times the intended load, it shall be:
a. immediately repaired or replaced
b. braced to meet those provisions
c. removed from service
d. a,b, or c
______ 17. The clearance between scaffolds and uninsulated power lines of less than 50 kv shall be:
a. 3 feet
b. 26 feet
c. 10 feet
d. 6 feet 6 inches
_______ 18. Scaffolds shall be erected, moved, dismantled, or altered only under the supervision and direction of:
a. more than one person
b. a foreman
c. a competent person qualified in scaffold erection, moving, dismantling, or alteration using only trained erectors
d. a person experienced in scaffold erection, moving, dismantling, and alteration
_______ 19. Employees shall be prohibited from working on scaffolds covered with snow, ice, or other slippery material except:
a. when the scaffold has to be dismantled at once
b. only on the night shift
c. as necessary for removal of such materials
d. when the condition is a recurring problem
_______ 20. Debris shall not be allowed to accumulate on platforms:
a. at any time
b. in the first part of the shift
c. within two hours of the end of the shift
d. except when no one has been assigned to clean up detail
Look at the answers you put for each multiple-choice question under part III. Please write the number of the standard from which you got the answer to each question in the blanks below.
True or False
Place a “T” for true and an “F” for false in the blank prior to each question. If the statement is false, correct it to make it true and cite the standard underneath.
_______1. Prior to excavating, communication cables are marked with yellow paint.
_____ _ 2. When excavating deeper than 20’, the protective system must be designed by a competent person.
______ 3. The spoil pile must be placed at least 2’ back from the edge of an excavation.
______ 4. The angle of repose for sloping in Type C soil is 1:1.
______ 5. The competent person must remove employees from an excavation if hazards exist.
______ 6. The minimum height a trench box must protrude above the edge of an excavation is 16”.
______ 7. The angle of repose for sloping in Type B soil is 1-1/2: 1
______ 8. In a trench that is 50’ long, it is only necessary to have one ladder for access and egress.
______ 9. The competent person must monitor the equipment that is used to remove water from the excavation to make sure it is functioning properly.
______ 10. If soil is submerged and has water seeping through it, it would be classified as soil type a.
Name seven (7) things to look for when conducting a visual soil test.