TCOT - TEST1 : PRODUCING SAFE
WATER IN A SAFE WORKPLACE. EXAM
QUESTIONS AND ANSWERS. VERIFIED
2026.
Where does lead contamination mainly occur? - ANS In corroded pipes.
Which materials are consumed by a Class A fire? - ANS Ordinary combustibles, such as wood,
paper, and cloth
What noise control measures are engineering controls? - ANS Source control and Path
Control
Why should operators avoid wearing rings in water treatment plants? - ANS To prevent
injuries such as cuts, fractures, and burns.
Which organisms cause almost immediate gastrointestinal illness when consumed in water? -
ANS Giardia, Cryptosporidium, and E. Coli
What is the purpose of a workplace hearing conservation program? - ANS To prevent hearing
loss that might affect an operator's ability to hear and understand normal speech.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Why did the EPA set the MCLG for total coliforms at zero? - ANS Because of disease
outbreaks from very low levels of coliforms.
What does a lockout device do? - ANS Uses a positive means such as a lock to hold a switch
or valve in a safe position and prevent the equipment from becoming energized or moving
Which PPE is used for eye protection? - ANS safety goggles and face shields
What is the main potential health effect of consuming mercury in drinking water? -
ANS Kidney Damage
Which EPA rule requires large public water systems to undertake extensive monitoring of
microbial contaminants and DBPs in their water systems? - ANS Information Collection Rule
What is the most effective means of noise control? - ANS Source Control
What is the most important controlling factor in a successful safety program? -
ANS Education
When should operators wear rubber gloves? - ANS When working with acids
What is the main objective of a safety program? - ANS Preventing harm to employees
What should the atmosphere in an unattended lift station be tested for before entering a
potentially confined space? - ANS Oxygen deficiency/enrichment
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
WATER IN A SAFE WORKPLACE. EXAM
QUESTIONS AND ANSWERS. VERIFIED
2026.
Where does lead contamination mainly occur? - ANS In corroded pipes.
Which materials are consumed by a Class A fire? - ANS Ordinary combustibles, such as wood,
paper, and cloth
What noise control measures are engineering controls? - ANS Source control and Path
Control
Why should operators avoid wearing rings in water treatment plants? - ANS To prevent
injuries such as cuts, fractures, and burns.
Which organisms cause almost immediate gastrointestinal illness when consumed in water? -
ANS Giardia, Cryptosporidium, and E. Coli
What is the purpose of a workplace hearing conservation program? - ANS To prevent hearing
loss that might affect an operator's ability to hear and understand normal speech.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Why did the EPA set the MCLG for total coliforms at zero? - ANS Because of disease
outbreaks from very low levels of coliforms.
What does a lockout device do? - ANS Uses a positive means such as a lock to hold a switch
or valve in a safe position and prevent the equipment from becoming energized or moving
Which PPE is used for eye protection? - ANS safety goggles and face shields
What is the main potential health effect of consuming mercury in drinking water? -
ANS Kidney Damage
Which EPA rule requires large public water systems to undertake extensive monitoring of
microbial contaminants and DBPs in their water systems? - ANS Information Collection Rule
What is the most effective means of noise control? - ANS Source Control
What is the most important controlling factor in a successful safety program? -
ANS Education
When should operators wear rubber gloves? - ANS When working with acids
What is the main objective of a safety program? - ANS Preventing harm to employees
What should the atmosphere in an unattended lift station be tested for before entering a
potentially confined space? - ANS Oxygen deficiency/enrichment
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
