Free OHST Exam Questions That Helps Candidates Pass

Comprehensive and Detailed Explanation:

The correct answer is B, Engineering control.

Engineering controls reduce or eliminate hazards at the source or along the path between the hazard and the worker. A soundproof enclosure physically isolates the noise source, reducing exposure levels without relying on worker behavior.

Noise hazards can lead to permanent hearing loss, stress, fatigue, and communication difficulties. Engineering solutions such as enclosures, dampening materials, vibration isolation, and equipment redesign are highly effective in controlling noise exposure.

OHST professionals evaluate workplace hazards and recommend appropriate control measures using the hierarchy of controls. Engineering controls are preferred because they provide consistent protection and reduce dependence on personal protective equipment or administrative measures.

Effective application of engineering controls significantly improves workplace safety and helps organizations comply with occupational exposure limits.

Comprehensive and Detailed Explanation:

The correct answer is C, Elimination.

Elimination removes the hazard completely from the workplace, making exposure impossible. It is the highest and most effective level in the hierarchy of controls.

Examples include removing a dangerous chemical from a process or redesigning a task so a hazard is no longer present.

OHST professionals prioritize elimination during risk assessments because it provides permanent protection without reliance on worker behavior.

Elimination significantly reduces risk and is preferred whenever feasible.

Comprehensive and Detailed Explanation:

The correct answer is B.

Concealing incidents is unethical because it prevents corrective action and increases risk to workers.

OHST professionals must ensure transparency and honesty in all reporting.

Comprehensive and Detailed Explanation:

The correct answer is B.

Safety coaching involves guiding employees to improve safe behaviors through observation, feedback, and positive reinforcement.

OHST professionals use coaching to correct unsafe practices in real time and reinforce safe habits.

It is an important tool for building a strong safety culture.

Comprehensive and Detailed Explanation:

The correct answer is B.

Engineering controls are designed to remove hazards or isolate workers from hazards through physical changes to the workplace. Examples include machine guards, ventilation systems, noise barriers, and automation.

These controls are more reliable than administrative controls or PPE because they do not depend heavily on human behavior.

OHST professionals prioritize engineering solutions when conducting hazard evaluations because they provide long-term and consistent protection.