WASTEWATER COLLECTIONS III CORE EXAM TEST
QUESTIONS AND SOLUTIONS RATED A+
✔✔What is the technique for breaking out the old pipe by use of radial forces from
inside the old pipe, and is the only way to install a larger diameter pipe without new pipe
installation? - ✔✔Pipe bursting
✔✔What is generally the major route of wastewater infection? - ✔✔Ingestion
✔✔What is the minimum % of oxygen in a breathing atmosphere to signal a system
operator to request more ventilation? - ✔✔19.5%
✔✔GIS - ✔✔Geographic Information System, A computer system that stores,
organizes, analyzes, and displays geographic data.
✔✔O&M - ✔✔Operations and Maintenance
✔✔SCADA - ✔✔Supervisory Control and Data Acquisition
✔✔CMMS - ✔✔Computerized Maintenance Management System
✔✔CMOM - ✔✔Capacity Management Operation Maintenance program
✔✔Shoring must protrude how far above the top of the excavation? - ✔✔18 inches
✔✔Any excavation over ________ must have a ladder for the worker to get in and out
of the trench. - ✔✔4 feet
✔✔An engineer must approve any trench shoring design above? - ✔✔20 feet
✔✔When the sewer line is installed parallel to a water line, it must be a minimum of
have far away(measured from the outside diameter)? - ✔✔10 feet
✔✔What is thee minimum distance from the edge of the spoils to the edge of the
trench? - ✔✔2 feet
✔✔The bottom of a water line crossing above a sewer line must be how far from the
crown of the sewer? - ✔✔18 inches
✔✔Hz stands for - ✔✔Cycles per second
✔✔Lantern Ring - ✔✔spacer ring in a pump packing gland to improve seat water
distribution
, ✔✔A ph of 6.0 is? - ✔✔Acidic
✔✔Leakage of seal water around the packing of a centrifugal pump is required because
it acts as? - ✔✔Lubricant
✔✔When opening a power rodder properly, what do you do ? - ✔✔Make sure the
torque is out of a broken rod
✔✔TDH - ✔✔total dynamic head
✔✔Anaerobic - ✔✔without oxygen
✔✔Aerobic - ✔✔requires oxygen
✔✔A Venture measures quantity of fluid by? - ✔✔differences in pressure
✔✔Enclosed, open, semi closed are terms used for the designation and selection of ? -
✔✔Impellers
✔✔stuffing box - ✔✔the section of a valve that contains packing.
✔✔impeller - ✔✔Device used to pump and force water under pressure through a
steering nozzle at the rear of the vessel
✔✔Centrifugal pump - ✔✔A non-positive displacement pump that moves a varying
amount of fluid with each rotation using an impeller blade
✔✔Submersible pump - ✔✔Pump that is immersed in the fluid it is pumping
✔✔A pump delivering less than the expected rate of discharge. What can cause this to
happen? - ✔✔Discharge head too high
✔✔What is a poly pig? - ✔✔A bullet shaped object passed through a force main
✔✔What tools are used with power rodders? - ✔✔Spring blades
✔✔MSDS - ✔✔Material Safety Data Sheet
✔✔Schedule 40 refers to pipe? - ✔✔wall thickness
✔✔What does PH stand for? - ✔✔potential hydrogen
QUESTIONS AND SOLUTIONS RATED A+
✔✔What is the technique for breaking out the old pipe by use of radial forces from
inside the old pipe, and is the only way to install a larger diameter pipe without new pipe
installation? - ✔✔Pipe bursting
✔✔What is generally the major route of wastewater infection? - ✔✔Ingestion
✔✔What is the minimum % of oxygen in a breathing atmosphere to signal a system
operator to request more ventilation? - ✔✔19.5%
✔✔GIS - ✔✔Geographic Information System, A computer system that stores,
organizes, analyzes, and displays geographic data.
✔✔O&M - ✔✔Operations and Maintenance
✔✔SCADA - ✔✔Supervisory Control and Data Acquisition
✔✔CMMS - ✔✔Computerized Maintenance Management System
✔✔CMOM - ✔✔Capacity Management Operation Maintenance program
✔✔Shoring must protrude how far above the top of the excavation? - ✔✔18 inches
✔✔Any excavation over ________ must have a ladder for the worker to get in and out
of the trench. - ✔✔4 feet
✔✔An engineer must approve any trench shoring design above? - ✔✔20 feet
✔✔When the sewer line is installed parallel to a water line, it must be a minimum of
have far away(measured from the outside diameter)? - ✔✔10 feet
✔✔What is thee minimum distance from the edge of the spoils to the edge of the
trench? - ✔✔2 feet
✔✔The bottom of a water line crossing above a sewer line must be how far from the
crown of the sewer? - ✔✔18 inches
✔✔Hz stands for - ✔✔Cycles per second
✔✔Lantern Ring - ✔✔spacer ring in a pump packing gland to improve seat water
distribution
, ✔✔A ph of 6.0 is? - ✔✔Acidic
✔✔Leakage of seal water around the packing of a centrifugal pump is required because
it acts as? - ✔✔Lubricant
✔✔When opening a power rodder properly, what do you do ? - ✔✔Make sure the
torque is out of a broken rod
✔✔TDH - ✔✔total dynamic head
✔✔Anaerobic - ✔✔without oxygen
✔✔Aerobic - ✔✔requires oxygen
✔✔A Venture measures quantity of fluid by? - ✔✔differences in pressure
✔✔Enclosed, open, semi closed are terms used for the designation and selection of ? -
✔✔Impellers
✔✔stuffing box - ✔✔the section of a valve that contains packing.
✔✔impeller - ✔✔Device used to pump and force water under pressure through a
steering nozzle at the rear of the vessel
✔✔Centrifugal pump - ✔✔A non-positive displacement pump that moves a varying
amount of fluid with each rotation using an impeller blade
✔✔Submersible pump - ✔✔Pump that is immersed in the fluid it is pumping
✔✔A pump delivering less than the expected rate of discharge. What can cause this to
happen? - ✔✔Discharge head too high
✔✔What is a poly pig? - ✔✔A bullet shaped object passed through a force main
✔✔What tools are used with power rodders? - ✔✔Spring blades
✔✔MSDS - ✔✔Material Safety Data Sheet
✔✔Schedule 40 refers to pipe? - ✔✔wall thickness
✔✔What does PH stand for? - ✔✔potential hydrogen
