FREE WW Workplace Safety, Emergency Response, and Security Questions and Answers

Question 1

What is considered the greatest potential hazard when entering a confined space like a manhole or wet well?

Accepted Answer

Hazardous atmosphere

Answer

Slips, trips, and falls

Answer

Contact with raw sewage

Answer

Structural collapse

Question 2

Which gas, known for its 'rotten egg' smell at low concentrations, is a common and deadly hazard in wastewater collection systems?

Accepted Answer

Hydrogen Sulfide (H2S)

Answer

Methane (CH4)

Answer

Chlorine (Cl2)

Answer

Carbon Monoxide (CO)

Question 3

In the event of a major chlorine gas leak, what is the most important immediate action for personnel to take?

Accepted Answer

Evacuate the area by moving upwind and uphill

Answer

Attempt to close the main valve on the cylinder

Answer

Spray the area with a large volume of water

Answer

Immediately call the local news station

Question 4

What information can be found on a Safety Data Sheet (SDS)?

Accepted Answer

Hazards, handling procedures, and first aid measures

Answer

The purchase price and vendor of the chemical

Answer

Only the chemical formula and its molecular weight

Answer

The daily process control parameters for the chemical

Question 5

Before performing maintenance on an electrical motor, the circuit breaker should be de-energized and what other critical step must be taken?

Accepted Answer

Apply a lock and tag to the breaker

Answer

Post a warning sign on the motor

Answer

Notify the plant superintendent by email

Answer

Check the motor's temperature

Question 6

What is the primary purpose of a facility's Emergency Response Plan (ERP)?

Accepted Answer

To provide clear procedures for handling emergencies to protect life and property

Answer

To satisfy an insurance company requirement

Answer

To document employee training records

Answer

To list the phone numbers of all plant employees

Question 7

Which of the following represents a key aspect of wastewater treatment plant security?

Accepted Answer

Controlling access to the facility through locked gates and visitor sign-in

Answer

Ensuring all process basins are full

Answer

Publishing effluent quality data on a public website

Answer

Keeping the grass mowed around the facility