March 2007, Vol. 19, No.3
Test Your Knowledge of Construction Site Safe
True or False Questions:
- Each employee required to perform duties on the horizontal boom of hammerhead tower cranes shall be protected against falling by guardrails or by a personal fall arrest system in conformance with Subpart M, Fall Protection.
- It is important, before beginning the job, for the contractor to establish and maintain a safety and health program for the work site that provides adequate systematic policies, procedures, and practices to protect employees from, and enable them to recognize, job-related safety and health hazards.
- Personal fall arrest systems consist of an anchorage, connectors, and a body belt or body harness and may include a deceleration device, lifeline, or suitable combinations. If a personal fall arrest system is used for fall protection, it must have sufficient strength to withstand twice the potential impact energy of an employee free fall from a distance of 8 feet (2.4 m) or the free fall distance permitted by the system, whichever is less.
- Plain cotton is an acceptable hearing protection device to be inserted in the ear.
- All protruding reinforcing steel, onto and into which employees could fall, must be guarded to eliminate the hazard of impalement.
- Employees must not be permitted to apply a cement, sand, and water mixture through a pneumatic hose unless they are wearing steel-toed boots.
Multiple Choice Questions:
Wire rope shall be taken out of service when which of the following conditions exist?
A. In running ropes, six randomly distributed broken wires in one lay or three broken wires in one strand in one lay.
B. Evidence of any heat damage from any cause.
C. In standing ropes, more than two broken wires in one lay in sections beyond end connections or more than one broken wire at an end connection.
D. Any of the above
The U.S. Occupational Safety and Health Administration standard dealing with support systems (OSHA 1926.652) requires which of the following procedures for the protection of employees when installing support systems?
A. Securely connect members of support systems.
B. Never overload members of support systems.
C. Install other structural members to carry loads imposed on the support system when temporary removal of individual members is necessary.
D. All of the above.
Which of the following general precautions should be observed by power tool users?
A. Never carry a tool by its blade
B. Keep all observers 30 ft (9 m) away from the work area.
C. Secure work with clamps or a vise to free both hands to operate the tool.
D. All of the above.
Which of the following variables has research found to be related to a disproportionate share of employee injuries and illnesses at the worksite on the part of employees? (Check all that apply.)
A. ___ Employee age. (Younger employees have higher incidence rates.)
B. ___ Lack of time on the job. (New employees have higher incidence rates.)
C. ___ Size of the firm. (In general, medium-sized firms have higher incidence rates than smaller or larger firms.)
D. ___ Type of work performed. (Incidence rates and severity vary significantly by standard industrial classification code.)
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Questions were developed by Bob Tackett, director of corporate safety at Environmental Management Corp. (O’Fallon, Mo.), which provides operations and management services for water, wastewater, and public works facilities, and by the Water Environment Federation Safety Committee. The quiz was reviewed by the Association of Boards of Certification (Ames, Iowa) Validation and Examination Committee.