CHMM - Certified Hazardous Materials Manager Health and Safety Management Questions and Answers

Question 1

An industrial process generates a significant amount of hazardous airborne dust. According to the hierarchy of controls, which of the following is the most effective and preferred method for protecting workers?

Accepted Answer

Installing a local exhaust ventilation (LEV) system at the point of dust generation.

Answer

The hierarchy of controls ranks methods from most to least effective: Elimination, Substitution, Engineering Controls, Administrative Controls, and Personal Protective Equipment (PPE). Installing a local exhaust ventilation system is an engineering control that removes the hazard at its source, making it more effective than administrative controls like job rotation or PPE, which only protect the individual worker and rely on employee behavior.

Question 2

A maintenance team must enter a large storage tank to perform an inspection. The tank is considered a permit-required confined space. The entry supervisor has conducted atmospheric testing and all conditions are acceptable. According to 29 CFR 1910.146, what is a critical prerequisite before any authorized entrant can enter the space?

Accepted Answer

A written entry permit, completed and signed by the entry supervisor, must be posted at the entrance.

Answer

OSHA's standard for Permit-Required Confined Spaces, 29 CFR 1910.146, mandates the use of a written permit system to control entry. The permit verifies that pre-entry checks have been completed and specifies acceptable entry conditions. It must be completed and signed before entry is authorized and made available at the time of entry to all authorized entrants.

Question 3

The primary goal of conducting a Job Hazard Analysis (JHA) is to:

Accepted Answer

Proactively identify potential hazards and determine safe procedures and controls before a job begins.

Answer

A Job Hazard Analysis (JHA) is a process to identify existing or potential hazards associated with the specific steps of a job and to develop controls to mitigate those risks. The core purpose is to prevent injuries and illnesses by anticipating and eliminating or controlling hazards before an incident occurs.

Question 4

A worker is required to wear a tight-fitting, air-purifying respirator when handling a specific volatile chemical. According to OSHA's Respiratory Protection Standard (29 CFR 1910.134), which of the following must the employer provide for the worker BEFORE they are fit-tested and required to use the respirator?

Accepted Answer

A medical evaluation to determine their fitness to wear a respirator.

Answer

OSHA's standard 29 CFR 1910.134(e) requires employers to provide a medical evaluation to determine an employee's ability to use a respirator before the employee is fit-tested or required to use the respirator in the workplace. This evaluation, performed by a physician or other licensed health care professional (PLHCP), ensures the worker can handle the physiological burden of wearing a respirator.

Question 5

Following a minor chemical spill that resulted in no injuries, a health and safety manager launches an incident investigation. What is the most important objective of this investigation?

Accepted Answer

To determine the root causes of the spill to prevent a recurrence.

Answer

The primary purpose of an incident investigation is to identify the root causes of an event to implement corrective actions and prevent similar incidents from happening in the future. Effective investigations focus on prevention and system improvements rather than assigning blame.

CHMM - Certified Hazardous Materials Manager Practice Test

CHMM - Certified Hazardous Materials Manager Practice Test

CHMM - Certified Hazardous Materials Manager Health and Safety Management Questions and Answers