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OSHA 501 practice questions

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Question 1Occupational Safety and Health Standards for General Industry

Under the OSHA general industry standards, within what time frame must an employer report to OSHA a fatality that results from a work-related incident?

  1. Within 72 hours
  2. Within 24 hours
  3. Within 30 days
  4. Within 8 hours Correct answer.

Explanation

OSHA requires employers to report work-related fatalities to the agency within 8 hours of learning of the death. In-patient hospitalizations, amputations, and losses of an eye must be reported within 24 hours. These reporting duties apply to all covered general industry employers.

Question 2Occupational Safety and Health Standards for General Industry

An employee suffers a work-related injury and is kept away from work for medical reasons. Under OSHA recordkeeping rules, the case becomes recordable on the calendar day count when the employee is away how many days?

  1. One day Correct answer.
  2. Five days
  3. Seven days
  4. Three days

Explanation

A case involving days away from work is recordable once the employee is away for at least one calendar day for medical reasons. Restricted work or job transfer cases become recordable at three days rather than one. Counting begins the day after the injury or onset of illness.

Question 3Occupational Safety and Health Standards for General Industry

Which form must a covered employer post by February 1 each year to summarize the prior year's occupational injuries and illnesses?

  1. OSHA Form 300A Summary Correct answer.
  2. OSHA Form 301 Incident Report
  3. OSHA Form 300 Log
  4. OSHA Form 101 Supplemental Record

Explanation

The Form 300A annual summary must be posted in a conspicuous place by February 1 and remain up until April 30. The Form 300 Log and Form 301 incident reports are kept on file but are not the posting document. Posting the summary informs employees of the year's recordable case totals.

Question 4Occupational Safety and Health Standards for General Industry

Under the Hazard Communication standard, which element must appear on every shipped container label for a hazardous chemical?

  1. A signal word and hazard statement Correct answer.
  2. The date the chemical was manufactured
  3. The manufacturer's street address and phone number
  4. The chemical's CAS registry number

Explanation

Shipped container labels must include the product identifier, a signal word, hazard statements, pictograms, and precautionary statements. The signal word and hazard statement convey the severity and nature of the hazard. Address and phone information belong on the safety data sheet rather than the required label content.

Question 5Occupational Safety and Health Standards for General Industry

How many sections does a safety data sheet contain under the current Hazard Communication standard?

  1. Eight
  2. Sixteen Correct answer.
  3. Twenty
  4. Twelve

Explanation

The HCS 2012-aligned safety data sheet uses a standardized 16-section format. Sections cover identification, hazards, composition, first aid, firefighting, handling, exposure controls, and other topics in a fixed order. Consistency lets workers and emergency responders find information quickly.

Question 6Occupational Safety and Health Standards for General Industry

An employer's written hazard communication program must include a list of hazardous chemicals known to be present. How is this requirement typically satisfied?

  1. By keeping the list in the safety data sheet binder
  2. By compiling a list of the chemicals using an identity that is cross-referenced to the SDSs Correct answer.
  3. By posting the list on each container
  4. By recording the list only in the OSHA 300 Log

Explanation

The written program must include a list of hazardous chemicals known to be present, identified by a product identifier that cross-references the corresponding safety data sheet. The list can be compiled for the workplace as a whole or per work area. It must be complete and kept current.

Question 7Occupational Safety and Health Standards for General Industry

Under the general industry walking-working surfaces rule, at what height must employees be protected from falls by guardrail systems, safety net systems, or personal fall arrest systems?

  1. Eight feet or more above a lower level
  2. Ten feet or more above a lower level
  3. Six feet or more above a lower level
  4. Four feet or more above a lower level Correct answer.

Explanation

The general industry rule requires fall protection for employees on walking-working surfaces four feet or more above a lower level. Construction uses a six-foot trigger height, but general industry generally uses four feet. Specific exceptions exist for certain activities and equipment.

Question 8Occupational Safety and Health Standards for General Industry

A guardrail system used for fall protection on a general industry walking-working surface must have a top rail height of approximately what dimension above the walking surface?

  1. 30 inches
  2. 48 inches
  3. 36 inches
  4. 42 inches Correct answer.

Explanation

Guardrail systems must have a top rail between 39 and 45 inches above the walking-working surface, with 42 inches as the nominal height. A midrail is typically installed at about 21 inches. These dimensions keep the rail at a height that restrains a falling worker.

Question 9Occupational Safety and Health Standards for General Industry

Under the permit-required confined space standard, what must an employer do before an employee enters a permit space?

  1. Confirm that atmospheric monitoring equipment is on order
  2. Complete pre-entry testing and obtain an authorized entry permit Correct answer.
  3. Verify that the space has been ventilated continuously for at least one hour
  4. Notify the local fire department of the entry

Explanation

Entry into a permit-required confined space requires pre-entry testing of atmospheric conditions and an authorized entry permit. The permit documents the hazards, controls, and rescue arrangements for that entry. Ventilation may be used as a control but a fixed one-hour waiting period is not the rule.

Question 10Occupational Safety and Health Standards for General Industry

In a permit-required confined space, what is the maximum acceptable oxygen concentration for entry without additional respiratory protection?

  1. 19.5 percent
  2. 23.5 percent Correct answer.
  3. 16.5 percent
  4. 25 percent

Explanation

The acceptable oxygen range for entry is between 19.5 and 23.5 percent. Below 19.5 percent is oxygen deficient and above 23.5 percent is oxygen enriched and creates a fire hazard. Testing for oxygen is normally performed first because it affects the reliability of other readings.

Question 11Occupational Safety and Health Standards for General Industry

Under the respiratory protection standard, which written element must a program include when respirators are required?

  1. A schedule for replacing filters every 30 days
  2. A roster of employees who declined to wear respirators
  3. A written program with procedures for selecting, using, and maintaining respirators Correct answer.
  4. A list of respirator manufacturers considered

Explanation

When respirators are required, the employer must establish a written respiratory protection program covering selection, medical evaluation, fit testing, training, and maintenance. The program must be updated as conditions change. Simply purchasing respirators without these written procedures does not satisfy the standard.

Question 12Occupational Safety and Health Standards for General Industry

Before an employee is fit tested for a tight-fitting respirator, what must the employer confirm?

  1. That the employee has completed a minimum of one year in the position
  2. That the employee has selected the brand of respirator
  3. That the employee has been medically evaluated and cleared to use the respirator Correct answer.
  4. That the employee has passed a written respirator exam

Explanation

The respiratory protection standard requires a medical evaluation before fit testing and before the employee uses a respirator in the workplace. Fit testing is performed only after medical clearance. This sequencing protects employees whose health could be affected by respirator use.

Question 13Occupational Safety and Health Standards for General Industry

Under the personal protective equipment standards for general industry, who is responsible for paying for required PPE?

  1. The equipment supplier under warranty
  2. The employer, with limited exceptions such as non-specialty safety-toe footwear Correct answer.
  3. A shared cost split evenly between employer and employee
  4. The employee, unless a collective bargaining agreement says otherwise

Explanation

The employer must pay for required PPE, with narrow exceptions such as non-specialty safety-toe footwear and ordinary clothing. The employer may not shift the cost of required protective equipment to employees. This ensures PPE use is not discouraged by cost.

Question 14Occupational Safety and Health Standards for General Industry

An employer must conduct a hazard assessment to determine PPE needs. What is the required documentation of that assessment?

  1. A photograph of each work area
  2. An entry in the OSHA 300 Log
  3. A written certification that identifies the workplace evaluated, the person certifying, and the date Correct answer.
  4. A verbal briefing to each employee

Explanation

The PPE hazard assessment must be documented with a written certification identifying the workplace evaluated, the person certifying the evaluation, and the date of the assessment. This record demonstrates the employer evaluated hazards before selecting PPE. It is separate from injury logs.

Question 15Occupational Safety and Health Standards for General Industry

Under the machine guarding standard, at what distance must a guard be placed to prevent an operator from reaching the point of operation where the guard opening permits access?

  1. Any distance, provided the guard is labeled
  2. Exactly 12 inches from the point of operation
  3. A distance determined by the size of the opening, so the operator cannot reach the hazard Correct answer.
  4. No farther than the length of the machine table

Explanation

The guard must be positioned so the opening does not allow any part of the operator's body to reach the point of operation. The allowable distance depends on the size and shape of the opening, as described in the standard's distance tables. A fixed distance does not apply to all machines.

Question 16Occupational Safety and Health Standards for General Industry

Under the lockout/tagout standard, what must be verified before work begins on a machine that has been de-energized?

  1. That the machine's warranty is current
  2. That the machine cannot be restarted and stored energy has been dissipated Correct answer.
  3. That the maintenance supervisor is on site
  4. That the machine was purchased within the last year

Explanation

After applying locks and tags, the authorized employee must verify isolation by attempting startup and by releasing or blocking stored energy. This verification step confirms the equipment is truly de-energized before servicing. Skipping it is a common cause of serious injuries.

Question 17Occupational Safety and Health Standards for General Industry

Which employees must be trained under the lockout/tagout standard in addition to authorized employees?

  1. Only employees who hold a journeyman license
  2. Only maintenance managers
  3. Only new hires within their first 90 days
  4. Affected employees and other employees whose work operations may encounter the energy control procedures Correct answer.

Explanation

The standard requires training for authorized employees who apply locks and tags, affected employees who work near the equipment, and other employees whose duties may bring them into contact with the energy control procedures. Training content differs by role. Training must be repeated when there is a change in job assignments or procedures.

Question 18Occupational Safety and Health Standards for General Industry

Under the bloodborne pathogens standard, what must an employer do after an employee reports an exposure incident?

  1. Refer the matter to the employee's personal physician at the employee's expense
  2. Require the employee to use accrued leave until cleared
  3. Offer the employee a post-exposure medical evaluation and follow-up at no cost Correct answer.
  4. Wait for the employee to request testing in writing

Explanation

Following an exposure incident, the employer must make immediately available a confidential medical evaluation and follow-up, including testing, at no cost to the employee. The employer also investigates the circumstances of the exposure. The employee's consent is handled through the healthcare professional.

Question 19Occupational Safety and Health Standards for General Industry

Under the bloodborne pathogens standard, how often must an employer review and update the written exposure control plan?

  1. Every five years
  2. Every month
  3. Every year Correct answer.
  4. Every three years

Explanation

The exposure control plan must be reviewed and updated at least annually and whenever necessary to reflect new or modified tasks and procedures. The annual review ensures the plan reflects current practices and technology. The plan must also be accessible to employees.

Question 20Occupational Safety and Health Standards for General Industry

Under the hazard communication standard, what must an employer do when employees travel between worksites where they may be exposed to hazardous chemicals?

  1. Provide labels and safety data sheets at each worksite or ensure access to them Correct answer.
  2. Post the chemical list only at the main office
  3. Rely on employee memory of prior training
  4. Require employees to carry their own SDSs

Explanation

Employees who work at multiple sites must have access to labels and safety data sheets at each location where they may be exposed. The employer must ensure information is available where the work occurs. Centralizing information at a single office does not meet the requirement for remote or mobile workers.

Question 21Occupational Safety and Health Standards for General Industry

Under the powered industrial truck standard, how often must an operator's performance be evaluated?

  1. Every six months
  2. Once at initial certification only
  3. At least annually
  4. At least once every three years Correct answer.

Explanation

Powered industrial truck operators must be evaluated at least once every three years as part of the certification requirement. The evaluation includes a review of the operator's performance and an assessment of safe operation. Refresher training is required sooner when unsafe operation is observed or conditions change.

Question 22Occupational Safety and Health Standards for General Industry

An employer operates a general industry workplace with 15 employees. Which recordkeeping obligation applies under OSHA's injury and illness rules?

  1. The employer must report every first-aid case to OSHA
  2. The employer is exempt from maintaining OSHA injury and illness records based on size Correct answer.
  3. The employer must maintain the OSHA 300 Log and post the 300A summary
  4. The employer must submit the 300 Log to OSHA monthly

Explanation

Employers with 10 or fewer employees in all establishments at all times during the previous calendar year are partially exempt from routine recordkeeping. With 15 employees, however, the employer is not exempt and must keep the records. Size exemptions are based on the 10-or-fewer threshold, not 15.

Question 23Occupational Safety and Health Standards for General Industry

Under the exit routes standard, what is the minimum number of exit routes required for a workplace?

  1. At least four, one on each side of the building
  2. At least three, regardless of occupancy
  3. At least one, if it is clearly marked
  4. At least two, arranged so they are remote from each other Correct answer.

Explanation

Workplaces generally must have at least two exit routes arranged so that a fire or smoke condition is unlikely to block both. The routes must be remote from each other and lead to a place of safety. Certain small or low-occupancy spaces may qualify for a single exit under specific conditions.

Question 24Occupational Safety and Health Standards for General Industry

Under the emergency action plan requirements, which element must be included in a written plan?

  1. Procedures for reporting emergencies and for employee alarm systems Correct answer.
  2. The company's annual revenue forecast
  3. A list of employee home addresses
  4. A schedule of employee performance reviews

Explanation

Emergency action plans must address procedures for reporting emergencies, evacuation or shelter-in-place, accounting for employees, rescue duties, and alarm systems. The plan must be written and available to employees for review. Personal and financial information is unrelated to the plan's required content.

Question 25Occupational Safety and Health Standards for General Industry

Under the noise standard, at what eight-hour time-weighted average exposure level must an employer implement a hearing conservation program?

  1. 90 dBA
  2. 85 dBA Correct answer.
  3. 95 dBA
  4. 80 dBA

Explanation

A hearing conservation program is required when employee noise exposure equals or exceeds an eight-hour time-weighted average of 85 dBA. The program includes monitoring, audiometric testing, hearing protection, training, and recordkeeping. The 90 dBA level is the permissible exposure limit requiring feasible engineering controls.

Question 26Occupational Safety and Health Standards for General Industry

Under OSHA's general industry standards, within what time period must an employer report to OSHA a fatality that results from a work-related incident?

  1. Within 72 hours of the incident
  2. Within 30 days of the incident
  3. Within 8 hours of the employer learning of the fatality Correct answer.
  4. Within 24 hours of the employer learning of the fatality

Explanation

OSHA requires employers to report a work-related fatality within 8 hours of learning of it. In-patient hospitalizations, amputations, and losses of an eye must be reported within 24 hours. The clock starts when the employer learns of the event, not when the incident occurred.

Question 27Occupational Safety and Health Standards for General Industry

An employer receives an OSHA citation and wishes to contest it. Within how many working days after receiving the citation must the employer file a Notice of Contest?

  1. 10 working days
  2. 15 working days Correct answer.
  3. 30 working days
  4. 20 working days

Explanation

An employer must file a written Notice of Contest with the OSHA area director within 15 working days of receiving the citation and proposed penalty. Filing timely preserves the right to a hearing before the Occupational Safety and Health Review Commission. Failure to contest within that period makes the citation a final order.

Question 28Occupational Safety and Health Standards for General Industry

Which of the following best describes the purpose of the OSHA Form 300A summary that certain employers must post each year?

  1. It replaces the need to maintain the Form 300 log during the year
  2. It summarizes the establishment's recorded injury and illness totals for employee review from February 1 through April 30 Correct answer.
  3. It documents each employee's exposure monitoring results
  4. It lists the establishment's hazard communication chemical inventory

Explanation

The Form 300A is an annual summary of the injury and illness data recorded on the Form 300 log. Employers must post it in a visible location from February 1 through April 30 of the following year. It does not replace the log and does not contain exposure or chemical inventory data.

Question 29Occupational Safety and Health Standards for General Industry

Under the general industry standards, what is the maximum allowable exposure limit for an 8-hour time-weighted average to a substance with an OSHA permissible exposure limit, absent a specific exception?

  1. Any level below the immediately dangerous to life or health value
  2. Twice the permissible exposure limit for short durations
  3. The permissible exposure limit established for that substance Correct answer.
  4. The threshold limit value published by the employer

Explanation

OSHA permissible exposure limits are enforceable 8-hour time-weighted average limits unless a standard specifies otherwise. Employers must keep employee exposures at or below the PEL. IDLH values and employer-selected limits do not override the regulatory PEL.

Question 30Occupational Safety and Health Standards for General Industry

An employee works in a general industry operation where the sound level is 90 dBA for an 8-hour shift. What is the employer's minimum obligation under the noise standard?

  1. Administer annual audiograms without any other program element
  2. Take no action because 90 dBA is below the action level
  3. Only post a warning sign at the entrance
  4. Provide hearing protection and implement a hearing conservation program Correct answer.

Explanation

The hearing conservation program is triggered at an 8-hour TWA of 85 dBA, and exposures at or above 90 dBA require feasible engineering or administrative controls plus hearing protection. At 90 dBA the employer must have a full program including monitoring, audiometric testing, and training. Posting signs alone does not satisfy the standard.

Question 31Occupational Safety and Health Standards for General Industry

Under the general industry standards, when must an employer provide a medical examination to an employee exposed to a regulated hazardous substance?

  1. Only when the employee requests it verbally
  2. Whenever the employer changes the production schedule
  3. When exposure monitoring shows the employee is exposed at or above the action level or exposure limit specified in the applicable substance standard Correct answer.
  4. Only after the employee has filed a workers' compensation claim

Explanation

Substance-specific standards such as lead, benzene, and cadmium require medical surveillance when monitoring shows exposures at or above the action level or PEL. The trigger is exposure, not an employee request or a compensation claim. The applicable standard defines the frequency and content of the examinations.

Question 32Occupational Safety and Health Standards for General Industry

Which of the following is a required element of an OSHA-compliant respiratory protection program when respirators are required?

  1. Procedures for regularly evaluating the effectiveness of the program Correct answer.
  2. Annual replacement of all filter cartridges regardless of use
  3. Monthly calibration of all continuous monitoring instruments
  4. Daily medical clearance for each respirator user

Explanation

The respiratory protection standard requires the employer to establish written procedures to evaluate program effectiveness, along with selection, medical evaluation, fit testing, training, and maintenance. Instrument calibration and cartridge replacement schedules are governed by other standards or manufacturer instructions.

Question 33Occupational Safety and Health Standards for General Industry

Under the general industry standards, what must an employer do before allowing an employee to enter a permit-required confined space?

  1. Develop and implement a written permit system, test the atmosphere, and provide an attendant Correct answer.
  2. Post a warning sign and proceed with normal work
  3. Issue a verbal authorization to the entrant only
  4. Seal the space and prohibit all entry permanently

Explanation

Entry into a permit space requires a written permit system, pre-entry atmospheric testing, isolation of hazards, and an attendant outside the space. Verbal authorization alone is insufficient. Permanent sealing is an option only if the employer eliminates all entry.

Question 34Occupational Safety and Health Standards for General Industry

An employer has 12 employees and operates a general industry business. Which injury and illness recordkeeping obligation applies?

  1. The employer must post the 300A summary for 12 months
  2. The employer must report every first-aid case to OSHA within 24 hours
  3. The employer is exempt from routinely recording cases on the OSHA 300 log Correct answer.
  4. The employer must file the OSHA 300 log electronically each quarter

Explanation

Employers with 10 or fewer employees at all times during the previous calendar year are partially exempt from routinely keeping injury and illness records. The exemption does not apply to severe event reporting or to establishments selected for the survey. Larger establishments generally must keep the log.

Question 35Occupational Safety and Health Standards for General Industry

An employer's written emergency action plan must include which of the following elements?

  1. The names of all job applicants
  2. A list of every chemical in the facility
  3. Procedures for reporting fires and other emergencies Correct answer.
  4. The annual budget for safety equipment

Explanation

The emergency action plan must describe reporting procedures, evacuation routes and procedures, accounting for employees, and rescue duties. Chemical inventories belong to hazard communication, and budget or personnel records are unrelated. The plan must be in writing when required by the standard.

Question 36Occupational Safety and Health Standards for General Industry

An employer uses a portable fire extinguisher program under the general industry standards. Which obligation applies when employees are expected to use extinguishers?

  1. Provide education on extinguisher use and the hazards of incipient-stage fighting, and train employees designated to use equipment Correct answer.
  2. Rely on the local fire department for all training
  3. Train employees on general fire hazards only
  4. Post a sign stating that extinguishers are decorative

Explanation

When employees are expected to fight incipient-stage fires, the employer must provide education on hazards and train designated employees in extinguisher use. If the employer chooses total evacuation, only education on general hazards is required. Signs are not a substitute for training.

Question 37Occupational Safety and Health Standards for General Industry

Under the general industry standards, which practice is required when an employee works on or near exposed energized electrical parts?

  1. Use insulated tools only for voltages above 600 volts
  2. De-energize and lock out the equipment unless infeasibility justifies working energized Correct answer.
  3. Rely on rubber gloves as the sole protective measure
  4. Work energized whenever production deadlines require it

Explanation

The electrical safety-related work practices standard requires de-energizing and locking out equipment before work unless the employer can demonstrate infeasibility or increased hazard. Energized work then requires justification and additional protective measures. Deadlines are not a valid basis for energized work.

Question 38Occupational Safety and Health Standards for General Industry

An employer stores flammable liquids in a general industry facility. Which requirement applies to containers holding flammable liquids?

  1. Containers must be labeled and closed except when in use Correct answer.
  2. Only metal containers may be used for any quantity
  3. Containers must be left open to prevent pressure buildup
  4. Containers must be stored in the work area regardless of quantity

Explanation

The flammable liquids standard requires containers to be closed when not in use and to be labeled with the identity of the contents. Open containers release vapors and increase fire risk. Storage location and container type depend on quantity and class, not a blanket rule.

Question 39Occupational Safety and Health Standards for General Industry

Under the general industry standards, what must an employer do when an employee is exposed to a hazardous chemical above the permissible exposure limit despite engineering controls?

  1. Reduce the workday to four hours without other controls
  2. Take no action if the employee wears a hard hat
  3. Post a sign and continue the exposure
  4. Implement feasible engineering controls and provide respiratory protection as needed Correct answer.

Explanation

Substance standards require feasible engineering and work practice controls to reduce exposures to or below the PEL. Where controls are insufficient, respiratory protection must be provided. Shortening the shift or posting signs does not substitute for required controls.

Question 40Occupational Safety and Health Standards for General Industry

An employer's workplace has a machine with an exposed rotating shaft. Which method is acceptable under the machine guarding standard?

  1. A barrier guard that prevents contact with the shaft Correct answer.
  2. Training employees to avoid the shaft
  3. A warning label placed on the machine housing
  4. A mirror mounted to allow operators to see the shaft

Explanation

Guards must physically prevent employees from contacting hazardous moving parts. A barrier guard is an acceptable method. Labels, training, and mirrors may supplement but cannot replace physical guarding.

Question 41Occupational Safety and Health Standards for General Industry

Under the lockout/tagout standard, what is the purpose of the periodic inspection?

  1. To evaluate employee attendance
  2. To test the machine's production output
  3. To verify that energy control procedures are being followed and to correct deviations Correct answer.
  4. To replace all locks annually

Explanation

The periodic inspection verifies that the energy control procedures are followed and that any deviations are corrected. It must be performed at least annually and documented. It is not a lock replacement or production exercise.

Question 42Occupational Safety and Health Standards for General Industry

An employee is exposed to blood or other potentially infectious materials. Which engineering control does the bloodborne pathogens standard require the employer to provide?

  1. A handwashing facility or an appropriate antiseptic alternative Correct answer.
  2. A monthly medical examination
  3. A supply of disposable gloves only
  4. A private office for each employee

Explanation

The standard requires handwashing facilities or, where not feasible, an appropriate antiseptic hand cleanser and clean towels. Gloves are personal protective equipment, not an engineering control. Private offices and monthly examinations are not required.

Question 43Occupational Safety and Health Standards for General Industry

Under the hazard communication standard, what must an employer do when a new chemical with a newly identified hazard is introduced into the workplace?

  1. Wait until the next annual review
  2. Remove the chemical from the inventory
  3. Update the written program and training as needed Correct answer.
  4. Notify only the purchasing department

Explanation

The hazard communication program must be updated when new hazards are introduced, and employees must be informed and trained. Waiting for an annual review leaves employees uninformed. Removing the chemical or notifying purchasing alone does not meet the requirement.

Question 44Occupational Safety and Health Standards for General Industry

Which of the following is required of an employer's permit-required confined space program when a contractor enters the employer's permit space?

  1. The host employer must inform the contractor of known hazards and coordinate entry operations Correct answer.
  2. The contractor assumes all responsibility without information from the host
  3. The contractor must use the host employer's attendant only
  4. The host employer must seal the space during contractor work

Explanation

The host employer must share information about known hazards and coordinate entry operations with the contractor. The contractor must also inform the host of hazards it introduces. Sealing the space and mandating a particular attendant are not required.

Question 45Occupational Safety and Health Standards for General Industry

Under the general industry walking-working surfaces standard, what is the minimum clearance required for an access ladder that is fixed to a structure?

  1. 12 inches from the centerline to the nearest permanent object
  2. 24 inches from the centerline to the nearest permanent object
  3. 30 inches from the centerline to the nearest permanent object Correct answer.
  4. 18 inches from the centerline to the nearest permanent object

Explanation

Fixed ladders require at least 30 inches of clearance from the centerline to the nearest permanent object on the climbing side. Less clearance requires a fall protection or cage system depending on the ladder configuration. The other values understate the clearance requirement.

Question 46Occupational Safety and Health Standards for General Industry

An employer discovers that an employee's noise exposure is 87 dBA as an 8-hour TWA. Which action is required?

  1. Implement a hearing conservation program including monitoring, audiometric testing, and training Correct answer.
  2. Conduct audiometric testing every five years
  3. Provide hearing protection only to employees who request it
  4. Immediately reduce exposure to 80 dBA through engineering controls

Explanation

An 8-hour TWA of 85 dBA or more triggers the hearing conservation program. At 87 dBA the employer must provide monitoring, audiometric testing, hearing protection, training, and recordkeeping. Protection must be available to all exposed employees, not only those who request it.

Question 47Occupational Safety and Health Standards for General Industry

An employer uses a written energy control procedure for a machine with a single energy source. Under the lockout/tagout standard, when may the employer use a simpler procedure instead of a full written procedure?

  1. When the machine is located outdoors
  2. When the machine has no stored energy and the procedure meets the standard's exception criteria Correct answer.
  3. Whenever the machine is less than five years old
  4. When only one employee is present

Explanation

The standard allows an exception from the full written procedure for certain machines with a single energy source that can be locked out and that meet the criteria for no stored energy and simple lockout. Age, staffing, or location do not create the exception.

Question 48Occupational Safety and Health Standards for General Industry

An employer provides respirators voluntarily to employees who are not exposed to hazardous levels. Which obligation applies?

  1. Conduct annual fit testing for all voluntary users
  2. Require medical evaluation before any voluntary use
  3. Implement the full written respiratory protection program
  4. Provide the respirators and ensure they are clean and in working order, with Appendix D information Correct answer.

Explanation

For voluntary use of filtering facepieces, the employer must ensure the respirator itself does not create a hazard and must provide the Appendix D information. The full program, fit testing, and medical evaluation are required only when respirators are necessary to protect health.

Question 49Occupational Safety and Health Standards for General Industry

An employer operates a general industry establishment where an employee is hospitalized for treatment after a work-related incident. What is the employer's reporting obligation?

  1. Report the hospitalization within 8 hours of learning of it
  2. Report the in-patient hospitalization to OSHA within 24 hours of learning of it Correct answer.
  3. Report the hospitalization only if the employee misses more than 30 days of work
  4. Record the case only on the OSHA 300 log with no report

Explanation

In-patient hospitalization for treatment, amputation, and loss of an eye must be reported within 24 hours. Fatality reporting carries the shorter 8-hour deadline. Recording on the log does not satisfy the separate reporting requirement.

Question 50Occupational Safety and Health Standards for General Industry

An employer's general industry workplace uses a substance regulated under a specific OSHA standard that requires exposure monitoring. Which statement best describes the employer's monitoring obligation when exposures may exceed the action level?

  1. Rely on material safety data sheets as a substitute for monitoring
  2. Monitor only if an employee complains
  3. Monitor employee exposures and notify employees of the results Correct answer.
  4. Monitor only after an exposure-related illness occurs

Explanation

Substance-specific standards require exposure monitoring when there is reason to believe exposures may exceed the action level or PEL. Employees must be notified of monitoring results, and the employer must repeat monitoring as the standard specifies. Complaints and illness are not the trigger.