WASTE WATER GRADE 1 |3 DIFFERENT
VERSIONS ACTUAL EXAM PAPER 2026
QUESTIONS WITH ANSWERS GRADED A+
◍ A check valve will normally be used to:.
Answer: Allow flow to go in only one direction
◍ A primary purpose of preliminary treatment is to protect pumps and other
equipment from wear and tear or possible damage..
Answer: True
◍ Primary sedimentation will remove most of the:.
Answer: Floatable and settleable solids
◍ You should never enter a manhole when you are alone even though you
have tested the atmosphere and provided for proper ventilation of the
manhole..
Answer: True
◍ When the operating crew is to change a 1-ton chlorine cylinder, safety
equipment should include a self-contained breathing apparatus and ammonia
water solution..
Answer: True
◍ Chlorine demand can be calculated when you know the:.
Answer: Chlorine dose concentration and the chlorine residual
◍ The main function of algae in a facultative wastewater treatment pond is to:.
Answer: Produce oxygen during daylight hours
◍ Use of herbicides in and around active treatment ponds can destroy the
ability of the ponds to treat the wastewater..
Answer: True
, ◍ A properly operated grit chamber will normally significantly reduce organic
solids loading to the primary clarifier..
Answer: False
◍ Anaerobic digester gas is mostly methane and hydrogen sulfide..
Answer: False
◍ As an operator, you may lose your state of California certification if you
willfully or negligently cause or allow waste discharge requirements to be
violated..
Answer: True
◍ A one-acre wastewater treatment pon operated at a depth of 3 feet would
hold approximately 9 million gallons..
Answer: False
◍ Usually, preliminary treatment includes removal of most of the:.
Answer: Grit
◍ One mg/L is equivalent to one ppm..
Answer: True
◍ Normally, packing gland nuts on most older centrifugal pumps should be
adjusted to prevent any leakage of liquid from the pump..
Answer: False
◍ When a facultative pond develops a green appearance, it should be treated
with copper sulfate to kill off the algae..
Answer: False
◍ Aerobic bacteria need dissolved oxygen to live..
Answer: True
◍ The amount of chlorine used per day in a 1-ton chlorine cylinder is normally
determined by:.
Answer: Weighing
◍ When wastewater enters a rectangular clarifier, it is often evenly dispersed
VERSIONS ACTUAL EXAM PAPER 2026
QUESTIONS WITH ANSWERS GRADED A+
◍ A check valve will normally be used to:.
Answer: Allow flow to go in only one direction
◍ A primary purpose of preliminary treatment is to protect pumps and other
equipment from wear and tear or possible damage..
Answer: True
◍ Primary sedimentation will remove most of the:.
Answer: Floatable and settleable solids
◍ You should never enter a manhole when you are alone even though you
have tested the atmosphere and provided for proper ventilation of the
manhole..
Answer: True
◍ When the operating crew is to change a 1-ton chlorine cylinder, safety
equipment should include a self-contained breathing apparatus and ammonia
water solution..
Answer: True
◍ Chlorine demand can be calculated when you know the:.
Answer: Chlorine dose concentration and the chlorine residual
◍ The main function of algae in a facultative wastewater treatment pond is to:.
Answer: Produce oxygen during daylight hours
◍ Use of herbicides in and around active treatment ponds can destroy the
ability of the ponds to treat the wastewater..
Answer: True
, ◍ A properly operated grit chamber will normally significantly reduce organic
solids loading to the primary clarifier..
Answer: False
◍ Anaerobic digester gas is mostly methane and hydrogen sulfide..
Answer: False
◍ As an operator, you may lose your state of California certification if you
willfully or negligently cause or allow waste discharge requirements to be
violated..
Answer: True
◍ A one-acre wastewater treatment pon operated at a depth of 3 feet would
hold approximately 9 million gallons..
Answer: False
◍ Usually, preliminary treatment includes removal of most of the:.
Answer: Grit
◍ One mg/L is equivalent to one ppm..
Answer: True
◍ Normally, packing gland nuts on most older centrifugal pumps should be
adjusted to prevent any leakage of liquid from the pump..
Answer: False
◍ When a facultative pond develops a green appearance, it should be treated
with copper sulfate to kill off the algae..
Answer: False
◍ Aerobic bacteria need dissolved oxygen to live..
Answer: True
◍ The amount of chlorine used per day in a 1-ton chlorine cylinder is normally
determined by:.
Answer: Weighing
◍ When wastewater enters a rectangular clarifier, it is often evenly dispersed
