TEXAS OCCUPATIONAL SAFETY
SPECIALIST CERTIFICATION EXAM WITH
ACTUAL QUESTIONS AND VERIFIED
ANSWERS, PLUS EXPLAINED
RATIONALES/EXPERT VERIFIED FOR
GUARANTEED 100% PASS 2026/LATEST
UPDATE/INSTANT DOWNLOAD PDF
1. A Texas Occupational Safety Specialist is conducting a hazard
assessment at a manufacturing facility. Which OSHA principle
requires employers to provide a workplace free from recognized
serious hazards even if no specific OSHA standard addresses the
hazard?
A. Hazard Communication Standard
B. General Duty Clause
C. Permit-Required Confined Space Standard
D. Lockout/Tagout Standard
Answer: B. General Duty Clause
Rationale: Section 5(a)(1) of the Occupational Safety and Health Act,
commonly called the General Duty Clause, requires employers to
provide employees with a workplace free from recognized hazards likely
to cause death or serious physical harm. It is used when no specific
OSHA standard applies but the hazard is recognized and feasible
controls exist.
2. An employee is exposed to continuous noise averaging 95 dBA
during an 8-hour shift. According to OSHA, what is the employer's
primary obligation?
1
,A. No action is necessary.
B. Implement a Hearing Conservation Program.
C. Only provide earplugs if requested.
D. Limit work shifts to 4 hours.
Answer: B. Implement a Hearing Conservation Program
Rationale: OSHA requires employers to implement a Hearing
Conservation Program whenever employee noise exposure equals or
exceeds an 8-hour TWA of 85 dBA. Engineering controls should also be
evaluated where exposures exceed permissible limits.
3. During a lockout/tagout inspection, which equipment qualifies as
an energy-isolating device?
A. Start button
B. Selector switch
C. Circuit breaker disconnect
D. Emergency stop button
Answer: C. Circuit breaker disconnect
Rationale: Energy-isolating devices physically prevent transmission of
hazardous energy. Circuit breakers designed for lockout qualify,
whereas push buttons and emergency stop devices are control circuit
devices rather than isolation devices.
4. A worker enters a tank with limited entry, poor ventilation, and
potential oxygen deficiency. This space is classified as:
A. Restricted work area
B. Limited-access enclosure
C. Permit-required confined space
D. Hazard zone
2
,Answer: C. Permit-required confined space
Rationale: A confined space becomes permit-required if it contains
actual or potential hazardous atmospheres, engulfment hazards,
inwardly converging walls, or other serious safety hazards.
5. Which hierarchy of controls provides the greatest reduction of
occupational risk?
A. PPE
B. Administrative controls
C. Engineering controls
D. Elimination
Answer: D. Elimination
Rationale: Elimination removes the hazard entirely, making it the most
effective control. PPE is considered the least effective because it
depends heavily on worker compliance.
6. OSHA requires employers to record a work-related injury if:
A. First aid is provided only.
B. The employee misses one or more workdays.
C. The employee reports discomfort.
D. A supervisor observes unsafe behavior.
Answer: B. The employee misses one or more workdays
Rationale: Cases involving days away from work, restricted duty,
medical treatment beyond first aid, loss of consciousness, or significant
diagnoses are recordable.
3
, 7. What is the minimum oxygen concentration generally considered
safe for normal atmospheric conditions?
A. 15%
B. 17%
C. 20.9%
D. 24%
Answer: C. 20.9%
Rationale: Normal atmospheric oxygen is approximately 20.9%. Oxygen
concentrations below 19.5% are considered oxygen deficient by OSHA.
8. A Safety Data Sheet (SDS) must contain how many standardized
sections under OSHA's Hazard Communication Standard?
A. 8
B. 10
C. 12
D. 16
Answer: D. 16
Rationale: OSHA aligns with the Globally Harmonized System (GHS),
requiring a standardized 16-section SDS format.
9. Which fire extinguisher is appropriate for energized electrical
equipment?
A. Class A
B. Class B
C. Class C
D. Class K
Answer: C. Class C
4
SPECIALIST CERTIFICATION EXAM WITH
ACTUAL QUESTIONS AND VERIFIED
ANSWERS, PLUS EXPLAINED
RATIONALES/EXPERT VERIFIED FOR
GUARANTEED 100% PASS 2026/LATEST
UPDATE/INSTANT DOWNLOAD PDF
1. A Texas Occupational Safety Specialist is conducting a hazard
assessment at a manufacturing facility. Which OSHA principle
requires employers to provide a workplace free from recognized
serious hazards even if no specific OSHA standard addresses the
hazard?
A. Hazard Communication Standard
B. General Duty Clause
C. Permit-Required Confined Space Standard
D. Lockout/Tagout Standard
Answer: B. General Duty Clause
Rationale: Section 5(a)(1) of the Occupational Safety and Health Act,
commonly called the General Duty Clause, requires employers to
provide employees with a workplace free from recognized hazards likely
to cause death or serious physical harm. It is used when no specific
OSHA standard applies but the hazard is recognized and feasible
controls exist.
2. An employee is exposed to continuous noise averaging 95 dBA
during an 8-hour shift. According to OSHA, what is the employer's
primary obligation?
1
,A. No action is necessary.
B. Implement a Hearing Conservation Program.
C. Only provide earplugs if requested.
D. Limit work shifts to 4 hours.
Answer: B. Implement a Hearing Conservation Program
Rationale: OSHA requires employers to implement a Hearing
Conservation Program whenever employee noise exposure equals or
exceeds an 8-hour TWA of 85 dBA. Engineering controls should also be
evaluated where exposures exceed permissible limits.
3. During a lockout/tagout inspection, which equipment qualifies as
an energy-isolating device?
A. Start button
B. Selector switch
C. Circuit breaker disconnect
D. Emergency stop button
Answer: C. Circuit breaker disconnect
Rationale: Energy-isolating devices physically prevent transmission of
hazardous energy. Circuit breakers designed for lockout qualify,
whereas push buttons and emergency stop devices are control circuit
devices rather than isolation devices.
4. A worker enters a tank with limited entry, poor ventilation, and
potential oxygen deficiency. This space is classified as:
A. Restricted work area
B. Limited-access enclosure
C. Permit-required confined space
D. Hazard zone
2
,Answer: C. Permit-required confined space
Rationale: A confined space becomes permit-required if it contains
actual or potential hazardous atmospheres, engulfment hazards,
inwardly converging walls, or other serious safety hazards.
5. Which hierarchy of controls provides the greatest reduction of
occupational risk?
A. PPE
B. Administrative controls
C. Engineering controls
D. Elimination
Answer: D. Elimination
Rationale: Elimination removes the hazard entirely, making it the most
effective control. PPE is considered the least effective because it
depends heavily on worker compliance.
6. OSHA requires employers to record a work-related injury if:
A. First aid is provided only.
B. The employee misses one or more workdays.
C. The employee reports discomfort.
D. A supervisor observes unsafe behavior.
Answer: B. The employee misses one or more workdays
Rationale: Cases involving days away from work, restricted duty,
medical treatment beyond first aid, loss of consciousness, or significant
diagnoses are recordable.
3
, 7. What is the minimum oxygen concentration generally considered
safe for normal atmospheric conditions?
A. 15%
B. 17%
C. 20.9%
D. 24%
Answer: C. 20.9%
Rationale: Normal atmospheric oxygen is approximately 20.9%. Oxygen
concentrations below 19.5% are considered oxygen deficient by OSHA.
8. A Safety Data Sheet (SDS) must contain how many standardized
sections under OSHA's Hazard Communication Standard?
A. 8
B. 10
C. 12
D. 16
Answer: D. 16
Rationale: OSHA aligns with the Globally Harmonized System (GHS),
requiring a standardized 16-section SDS format.
9. Which fire extinguisher is appropriate for energized electrical
equipment?
A. Class A
B. Class B
C. Class C
D. Class K
Answer: C. Class C
4
