Wastewater treatment certification exam questions with || || || || || ||
accurate detailed answers || ||
The first step in maintenance staff should take in properly locking and tagging out a piece
|| || || || || || || || || || || || || || || ||
of equipment is to - correct answer✔✔alert the operator on duty
|| || || || || || || || || ||
When working in an area with two or more floor coverings, be sure that they are always -
|| || || || || || || || || || || || || || || || || ||
correct answer✔✔Secured together
|| ||
When manually lifting any object be sure to - correct answer✔✔keep it close to your body
|| || || || || || || || || || || || || || || ||
and use leg strength
|| || ||
Oxygen deficiency becomes a concern when the oxygen level in a confined space is less
|| || || || || || || || || || || || || || ||
than - correct answer✔✔19.5%
|| || ||
What provides safety information for potentially hazardous or toxic materials? - correct
|| || || || || || || || || || || ||
answer✔✔MSDS Material safety Data Sheet || || || ||
The threshold limit value concentration for chlorine vapor is - correct answer✔✔0.5 ppm
|| || || || || || || || || || || ||
When working in confined spaces where flammable gases may be present, use only tools
|| || || || || || || || || || || || || ||
made of - correct answer✔✔a non-sparking alloy
|| || || || || ||
In addition to the worker entering a confined space, what is the minimum number of
|| || || || || || || || || || || || || || ||
people required to be present during a confined space entry? - correct answer✔✔1
|| || || || || || || || || || || ||
, Hearing protection must be made available to all employees exposed to noise levels above -
|| || || || || || || || || || || || || || ||
correct answer✔✔85 decibels, averaged over 8 working hours
|| || || || || || ||
Recommended personal hygiene practices to minimize the risk of being infected by || || || || || || || || || || || ||
wastewater pathogens include - correct answer✔✔changing out of your work clothes and
|| || || || || || || || || || || ||
showering before leaving work || || ||
When using protable electric tools in damp areas or around standing water, be sure to plug
|| || || || || || || || || || || || || || || ||
them into a - correct answer✔✔ground fault circuit interrupter
|| || || || || || || ||
You are the operator-on-duty. The alarm for the fire detector in the Belt filter press control
|| || || || || || || || || || || || || || || ||
room goes off. what type of fire extinguisher would you take to respond to this alarm? -
|| || || || || || || || || || || || || || || || ||
correct answer✔✔Class C` || ||
In confined space entry, LFL stands for - correct answer✔✔Lower flammability limit
|| || || || || || || || || || ||
When mixing dry sodium hydroxide and water in an enclosed vessel or area, be sure that -
|| || || || || || || || || || || || || || || || ||
correct answer✔✔the vessel or area is properly vented
|| || || || || || ||
Personnel should not work alone on energized equipment, for example, a magnetic starter,
|| || || || || || || || || || || || ||
that operates at or above - correct answer✔✔480 volts. It is considered lethal any amount
|| || || || || || || || || || || || || || ||
about this. ||
Which of the following hazardous chemicals in a hydrocarbon? Methane. Phosphoric acid.
|| || || || || || || || || || || ||
Sodium hydroxide. Ferric chloride. - correct answer✔✔Methane.
|| || || || || ||
Pulmonary capacity tests are required before operators can be cleared for using respiratory
|| || || || || || || || || || || || ||
equipment. These tests should be performed at a minimum of once every - correct
|| || || || || || || || || || || || || ||
answer✔✔3 years ||
accurate detailed answers || ||
The first step in maintenance staff should take in properly locking and tagging out a piece
|| || || || || || || || || || || || || || || ||
of equipment is to - correct answer✔✔alert the operator on duty
|| || || || || || || || || ||
When working in an area with two or more floor coverings, be sure that they are always -
|| || || || || || || || || || || || || || || || || ||
correct answer✔✔Secured together
|| ||
When manually lifting any object be sure to - correct answer✔✔keep it close to your body
|| || || || || || || || || || || || || || || ||
and use leg strength
|| || ||
Oxygen deficiency becomes a concern when the oxygen level in a confined space is less
|| || || || || || || || || || || || || || ||
than - correct answer✔✔19.5%
|| || ||
What provides safety information for potentially hazardous or toxic materials? - correct
|| || || || || || || || || || || ||
answer✔✔MSDS Material safety Data Sheet || || || ||
The threshold limit value concentration for chlorine vapor is - correct answer✔✔0.5 ppm
|| || || || || || || || || || || ||
When working in confined spaces where flammable gases may be present, use only tools
|| || || || || || || || || || || || || ||
made of - correct answer✔✔a non-sparking alloy
|| || || || || ||
In addition to the worker entering a confined space, what is the minimum number of
|| || || || || || || || || || || || || || ||
people required to be present during a confined space entry? - correct answer✔✔1
|| || || || || || || || || || || ||
, Hearing protection must be made available to all employees exposed to noise levels above -
|| || || || || || || || || || || || || || ||
correct answer✔✔85 decibels, averaged over 8 working hours
|| || || || || || ||
Recommended personal hygiene practices to minimize the risk of being infected by || || || || || || || || || || || ||
wastewater pathogens include - correct answer✔✔changing out of your work clothes and
|| || || || || || || || || || || ||
showering before leaving work || || ||
When using protable electric tools in damp areas or around standing water, be sure to plug
|| || || || || || || || || || || || || || || ||
them into a - correct answer✔✔ground fault circuit interrupter
|| || || || || || || ||
You are the operator-on-duty. The alarm for the fire detector in the Belt filter press control
|| || || || || || || || || || || || || || || ||
room goes off. what type of fire extinguisher would you take to respond to this alarm? -
|| || || || || || || || || || || || || || || || ||
correct answer✔✔Class C` || ||
In confined space entry, LFL stands for - correct answer✔✔Lower flammability limit
|| || || || || || || || || || ||
When mixing dry sodium hydroxide and water in an enclosed vessel or area, be sure that -
|| || || || || || || || || || || || || || || || ||
correct answer✔✔the vessel or area is properly vented
|| || || || || || ||
Personnel should not work alone on energized equipment, for example, a magnetic starter,
|| || || || || || || || || || || || ||
that operates at or above - correct answer✔✔480 volts. It is considered lethal any amount
|| || || || || || || || || || || || || || ||
about this. ||
Which of the following hazardous chemicals in a hydrocarbon? Methane. Phosphoric acid.
|| || || || || || || || || || || ||
Sodium hydroxide. Ferric chloride. - correct answer✔✔Methane.
|| || || || || ||
Pulmonary capacity tests are required before operators can be cleared for using respiratory
|| || || || || || || || || || || || ||
equipment. These tests should be performed at a minimum of once every - correct
|| || || || || || || || || || || || || ||
answer✔✔3 years ||
