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Which of the following BEST describes the Threshold Limit Value (TLV)?
A. The amount of hazardous chemical exposure to which a worker can be exposed.
B. The number of physical hazards to which a worker can be exposed.
C. The amount of hazardous chemicals in work area.
D. The required information on a container label. - correct answer ✔✔ A
Respirator users must be trained, medically cleared, and
A. Assigned a personal respirator.
B. Purchase their own respirator.
C. Provided a new respirator daily.
D. Fit Tested. - correct answer ✔✔ D
Your crew enters an area and finds used disposable respirators on the floor from a previous
work crew. Your company has a respirator program and as the supervisor you should:
A. Begin work and assume the previous hazard has been removed.
B. Put all workers in the respirators left by the previous crew.
C. Determine the reason for the previous crew's usage of the respirator and appropriately
protect the crew from those hazards.
D. Begin work and write a report to the contracting employer. - correct answer ✔✔ C
Your crew does not have a respirator program. The Supervisor and crew arrive on site to begin
work outside. About 20 meters (60 feet) upwind from the work area, a welding crew is still
,working in respirators. The welding crew supervisor said they would be finished in 20 minutes.
The supervisor should:
A. Begin work.
B. Put the crew in respirators and begin work.
C. Wait the 20 minutes for the welders to complete their work.
D. Have the welding crew supervisor suspend operations until your crew is finished. - correct
answer ✔✔ C
Work in confined space monitor reads 15% oxygen. The workers should:
A. Evacuate, the space is oxygen enriched.
B. Continue working.
C. Evacuate, the space is oxygen deficient.
D. Put the workers in air purifying respirators. - correct answer ✔✔ C
On a jobsite, which of the following is MOST CORRECT concerning Safety Data Sheets (SDS)
accessibility?
A. The supervisor or crew leader must have access and can provide a copy to the workers.
B. Provide a copy for each worker for each chemical.
C. Copies of SDS should be filed with the local fire department.
D. SDS are provided to the workers by OSHA. - correct answer ✔✔ A
When workers enter a permit required confined space with hazardous conditions, who must
have continuous communication with the entrants?
A. One attendant per entrant.
B. A rescue team available within 30 seconds.
C. Entry Supervisor
D. Attendant(s) - correct answer ✔✔ D
, Which of the following terms BEST describes when to dispose of a respirator?
A. Service life.
B. Protection factor.
C. Air purifying.
D. Fit test. - correct answer ✔✔ A
Which is the MOST APPROPRIATE measurement of individual safety performance?
A. Recognize workers for reporting hazards and correcting them.
B. Group performing thus far without injuries.
C. No safety discipline in the past year.
D. Crew completes entire job without a recordable injury. - correct answer ✔✔ A
The superintendent asks a STSC to evaluate the injury records for a 1 Million-Man-Hours-With-
No-Lost-Time Accident Award. Upon review, the STS discovers that a case involving 3 days away
from work was not categorized correctly. The STSC should:
A. Report the misclassification to the site superintendent.
B. Allow recognition to continue.
C. Notify the federal authorities.
D. Do not issue the award. - correct answer ✔✔ A
Which of the following MOST relates to the 1st standard of the STS code of ethics?
A. Perform safety responsibilities and assignments only in areas of their competence.
B. Hold paramount the safety and health of people and the protection of property and
environment in performance of safety responsibilities.
C. Issue objective and truthful statements to employers, clients or appropriate authorities.