SAQ Flashcards
(90 cards)
An experienced engineer is necessary when designing a:
Moveable scaffold system.
When a scaffold system will be moved horizontally while occupied by employees, the scaffold system must be designed by a registered (licensed) professional engineer for that purpose.
Reference: 29 CFR 926.451 (5).
A worker is using a jackhammer to break concrete. For this work:
The worker must be provided with safety glasses, safety shoes, a hard hat, and hearing protection.
Using a jackhammer requires several types of personal protective equipment to properly safeguard the employees the physical hazards of the work. A respirator may also be required depending upon the amount of concrete dust generated, but the minimum personal protective equipment needed for this work are safety glasses, safety footwear, a safety helmet, and hearing protection. Hand protection may also be necessary.
Reference: 29 1926 Subpart
Bituminous-material melting kettles:
Should not be used within 25 feet of buildings or combustible materials.
Hot kettles should be kept as far away as practical buildings or other flammable or combustible materials; however, a minimum of 25 feet is a best practice.
Reference: Construction Safety Planning, MacCollum, David V.
When actively are engaged in underground construction work, at least one designated person must be on duty above ground to:
Maintain an accurate count of the employees working underground.
Tunnel and other underground construction work require a person to be stationed above ground at the of the underground to maintain an accurate count of everyone currently underground. This information is used to ensure each employee is accounted for in an emergency. The person stationed above ground cannot be assigned any duties that would interfere with the count.
Reference: 29 CFR 1926.800 (g) (3).
The customized protective systems of an excavation must be designed by a registered (licensed) professional engineer (P.E.) if the excavation is deeper than:
20 feet.
When an excavation exceeds 20 feet in depth at any location, the excavation’s customized protective systems must be designed by a registered (licensed) professional engineer.
Part of the requirements for respiratory protection training and use includes a medical evaluation questionnaire. Prior to respirator use, who should review the questionnaire responses?
Licensed health care professional
Medical questionnaires must be evaluated by a licensed health care professional. Reference: 29 CFR 19 10.134 (e) (2) (i).
Establishing written standard operating procedures for construction tasks is:
Best for high-risk work.
High-risk work is best suited for having written standard operating procedures. Much of the work on a construction is routine, and the good workmanship of the employees can be trusted. For high-risk work and non-routine tasks, job safety analyses and written procedures should be developed to minimize the risk to employees.
Reference: Handbook OSHA Construction and Health, Reese, Charles D., and Eidson, James, V.
Who most influences the safe work habits of subcontractor employees?
First-line supervisor.
First-line supervisors almost always have the most influence on the habits of employees. If the first-line supervisor is diligent to abide by safety regulations and policies, the subcontractor employees will see this and indirectly understand that safe work habits are enforced.
Reference: Handbook OSHA Construction Reese, Charles D., and Eidson, James, V.
If an employer recommends that employees wear personal protective equipment (PPE) for protecting employees from exposure to occupational hazards, then:
The employer must furnish the PPE.
Employers must furnish personal protective equipment. If an employee elects to provide his or her personal protective equipment, the employer is still responsible for ensuring that the employee’s own personal protective equipment is acceptable for minimizing contact with the hazard, meeting all required design standards, and is actually worn by the employee.
Reference: 29 CFR 1910.95 (a) and (b).
Where is the first place that an employee on a jobsite should seek specific health information on a chemical?
Container label.
The first place an employee should look to obtain health on a specific chemical is the label. The label likely will have a hazard warning and the emergency actions to take if exposed to the chemical. The employee should then consult the chemical’s material safety data sheet for more detailed information.
Reference: Safety Management, 5th Edition, Grimaldi, John V., and Simonds, Rollin H.
Which statement correctly identifies the duty of an employer to protect employees from falling?
For unprotected edges 6 or more feet above the next lower level, employers must install a guardrail system, safety net, or personal fall arrest system to prevent employees from falling.
At a minimum, employers are required to establish a fall protection system for employees exposed to falls of six feet or more. these systems must include on or all of the following: guardrail system; safety net; personal fall arrest system.
Reference: 29 CFR 1926.501 (b) (1).
A personnel platform is used by welders during a pre-cast erection procedure. Which feature of the crane is likely to be provided expressly for this job?
Anti-two-blocking device
When a crane is used to lift a personnel platform, an anti-two-blocking device is specifically required. Reference: 29 CFR 1926.550 (g) (3) (ii) (C)
Threshold Limit Values are:
Guidelines in the control of health hazards.
Threshold Limit Values (TLVs) are published by the American Conference of Governmental Industrial Hygienists and should be used by trained persons as guidelines in the control of health hazards. Permissible exposure limits (PELs) are published by federal OSHA and are statutory.
Reference: Threshold Limit Values (TLVs) for Chemical Substance and Physical Agents and Biological Exposure Indies (BEIs), American Conference of Governmental Industrial Hygienists.
A job safety analysis is:
Used for evaluating each step of a job to understand its hazards and to identify hazard controls.
Job safety analyses are commonly used to evaluate each step of a task or process to ensure that the employee understands the safety issues and hazards present at each step and the means to prevent the employee from coming into contact with the hazard.
Reference: Accident Prevention Manual for Business and Industry, Administration and Programs, 13th Edition National Safety Council
A company is going to demolish an old bridge painted with a lead-based paint. What should a CHST review to obtain airborne lead exposure guidelines for the workers?
Threshold Limit Values (TLV’s) for Chemical Substances and Physical Agents and Biological Exposure Indices (BEIs) published by the American Conference of Governmental Industrial Hygienists
A helpful reference for understanding the hazard of airborne lead is the Threshold Limit Values (TLVs) for Chemical Substances and Physical Agents and Biological Exposure Indices (BEIs) published by the American Conference of Governmental Industrial Hygienists.
Reference: Threshold Limit Values (TLVs) for Chemical Substance and Physical Agents and Biological Exposure Indies (BEIs), American Conference of Governmental Industrial Hygienists.
Before allowing a trained employee to use a respirator, a CHST should verify that the respirator has been approved by the:
National Institute for Occupational Safety and Health (NIOSH)
The National Institute for Occupational Safety and Health is the only approving authority for respirators. The federal Mine Safety and Health Administration formerly approved respirators, but the agency no longer performs this function.
Reference: Certified Equipment List, National Institute for Occupational Safety and Health.
What is primary purpose of grounding electrical equipment?
To prevent electrocution from defective equipment
A ground is an object that connects a piece of electrical equipment to earth or some conducting body that serves in place of earth. A ground serves to complete the electrical circuit and prevent current from unexpectedly flowing through a person.
Reference: National Electrical Code (NFPA 70), National Fire Protection Association
Which is a formal deductive risk analysis method?
Fault tree analysis
Fault tree analysis is a deductive analysis. A deductive analysis starts with the undesired failure. The analyst then deduces the steps, events, and conditions necessary to obtain the undesired failure. An inductive analysis starts with specific events that may cause problems. The analyst on an inductive analysis (such as failure mode and effects analysis) then infers from the lower-level events the things that could be affected, thus potentially finishing with several undesired failures.
Reference: Accident Prevention Manual for Business and Industry, Administration and Programs, 13th Edition, National Safety Council
Which best protects employees from splashes of chemicals or molten metals?
Face shields
Hazards from splashing materials require face protection in addition to eye protection. Reference: 29 CFR 1926.102 (a) (5) and ANSI Z87.1.
Before allowing employees to enter a confined space, a supervisor should ensure that:
The atmosphere in the confined space is breathable and poses no explosion hazard.
The entry supervisor must ensure that the atmosphere in a confined space is breathable and poses no other unacceptable risks (oxygen deficiency, toxic gas hazard, flammability hazard).
The three primary purposes of safety and health inspections conducted by are to identify compliance problems with company and regulatory policies and standards, evaluate the performance of supervisors and workers, and:
Determine the effectiveness of corrective actions from previous inspections.
Inspections of jobsites must include verifying the effectiveness of corrective actions from previous inspections or from incident investigations.
Reference: Accident Prevention Manual for Business and Industry, Administration and Programs, 13th Edition, National Safety Council
Mutual aid agreements typically are associated with companies and agencies working together to:
Mitigate emergencies or disasters.
Mutual aid agreements are associated with companies and local emergency response agencies and describe the mutual procedures and protocols to help ensure that emergencies are mitigated with a coordinated effort.
Reference: Accident Prevention Manual for Business and Industry, Administration and Programs, 13th Edition, National Safety Council
When water is used to extinguish a small fire, the fire is extinguished primarily because the water:
Cools the fuel.
In a small fire, water primarily cools the fire’s fuel, thus eliminating the source of continuous ignition. In a larger, hot fire, the expansion of the liquid water to vapor helps smother the fire.
Reference: Fire Protection Handbook, 20th Edition, National Fire Protection Association.
When an employer provides employees with portable fire extinguishers, the employees must first:
Be trained to use portable fire extinguishers properly.
Fire extinguisher training is essential for employees who are expected to use a fire extinguisher.
Reference: Accident Prevention Manual for Business and Industry, Administration and Programs, 13th Edition, National Safety Council