307 ADVANCED DC ACTUAL FINAL PAPER QUESTIONS
AND SOLUTIONS RATED A+
✔✔What does ESP stand for? - ✔✔Electrical submersible pump
✔✔What should you not pump with an ESP? - ✔✔Oil or fuel contaminated water
✔✔What should you check an ESP for before using? - ✔✔Exposed wires
✔✔When should you test an ESP? - ✔✔Before moving it
✔✔How does a perijet extract water? - ✔✔Venturi effect
Passing water creates low pressure that pulls the water out of the space.
✔✔What powers an ESP? - ✔✔440v electricity
✔✔Can you use more than one ESP? - ✔✔Yes they can be attached in tandem
✔✔If more than one ESP is used, which one should be started first? - ✔✔Start from the
bottom to prevent burning up motors
✔✔What can be connected to the end of an ESP? - ✔✔Perijet inductor
✔✔Who leads the team when there is a casualty with toxic substance? - ✔✔Gas free
engineer
✔✔What can you do to combat progressive flooding? - ✔✔Use more pumps
✔✔How can you stop a rupture or crack that continues to expand? - ✔✔Drill 1/4" holes
outside ends of crack to relieve stress
✔✔Who should you contact if shoring collapses? - ✔✔DC Central
✔✔What is the first step when electrical is lost? - ✔✔Send an investigator to find the
cause
✔✔Where is a broken or warped dog logged? - ✔✔OOC log
✔✔Where is preventative maintenance logged? - ✔✔Not the OOC log
✔✔How many things are connected to the P-100? - ✔✔Intake
Discharge
Exhaust
, ✔✔How can you check the fuel level on the P-100? - ✔✔Fuel indicator on the side
✔✔What should you checkin shoring before taking them? - ✔✔Make sure the ends are
not rusted and can swivel freely
✔✔What is the proper way to use a maul? - ✔✔In pairs
✔✔How should you remove contaminated oily water? - ✔✔With a perijet
✔✔What are the types of perijets? - ✔✔Regular
S type
Mini
✔✔What are the steps to patching a pipe? - ✔✔1. Secure
2. Clean
3. Patch
4. Test
✔✔If shoring collapses, the watch should notify: - ✔✔The locker and attempt to
reconstruct the shoring
✔✔Peri-jet educator can pass items how large? - ✔✔Up to 2 1/2"
✔✔Can you apply a jubilee patch to pressurized piping - ✔✔Yes
✔✔Will losing firemain affect our ability to dewater? - ✔✔No. Use ESP, P100
✔✔Wooden plugs used for - ✔✔Small holes
Simplest method of repair
Aka DC plugs
✔✔Box patch used for - ✔✔Holes with jagged edges protruding inward
✔✔Bucket patch used for - ✔✔Galvanized bucket used in a variety of ways to stop
leaking
✔✔Jubilee primarily used on - ✔✔Fresh water and salt water systems
✔✔Soft patch used on - ✔✔Fresh and salt water systems, low pressure steam lines
✔✔Plastic patch used for - ✔✔Gasoline and other flammable fluid lines
✔✔ESP is used when - ✔✔Dewater compartment not served by installed drainage
systems
AND SOLUTIONS RATED A+
✔✔What does ESP stand for? - ✔✔Electrical submersible pump
✔✔What should you not pump with an ESP? - ✔✔Oil or fuel contaminated water
✔✔What should you check an ESP for before using? - ✔✔Exposed wires
✔✔When should you test an ESP? - ✔✔Before moving it
✔✔How does a perijet extract water? - ✔✔Venturi effect
Passing water creates low pressure that pulls the water out of the space.
✔✔What powers an ESP? - ✔✔440v electricity
✔✔Can you use more than one ESP? - ✔✔Yes they can be attached in tandem
✔✔If more than one ESP is used, which one should be started first? - ✔✔Start from the
bottom to prevent burning up motors
✔✔What can be connected to the end of an ESP? - ✔✔Perijet inductor
✔✔Who leads the team when there is a casualty with toxic substance? - ✔✔Gas free
engineer
✔✔What can you do to combat progressive flooding? - ✔✔Use more pumps
✔✔How can you stop a rupture or crack that continues to expand? - ✔✔Drill 1/4" holes
outside ends of crack to relieve stress
✔✔Who should you contact if shoring collapses? - ✔✔DC Central
✔✔What is the first step when electrical is lost? - ✔✔Send an investigator to find the
cause
✔✔Where is a broken or warped dog logged? - ✔✔OOC log
✔✔Where is preventative maintenance logged? - ✔✔Not the OOC log
✔✔How many things are connected to the P-100? - ✔✔Intake
Discharge
Exhaust
, ✔✔How can you check the fuel level on the P-100? - ✔✔Fuel indicator on the side
✔✔What should you checkin shoring before taking them? - ✔✔Make sure the ends are
not rusted and can swivel freely
✔✔What is the proper way to use a maul? - ✔✔In pairs
✔✔How should you remove contaminated oily water? - ✔✔With a perijet
✔✔What are the types of perijets? - ✔✔Regular
S type
Mini
✔✔What are the steps to patching a pipe? - ✔✔1. Secure
2. Clean
3. Patch
4. Test
✔✔If shoring collapses, the watch should notify: - ✔✔The locker and attempt to
reconstruct the shoring
✔✔Peri-jet educator can pass items how large? - ✔✔Up to 2 1/2"
✔✔Can you apply a jubilee patch to pressurized piping - ✔✔Yes
✔✔Will losing firemain affect our ability to dewater? - ✔✔No. Use ESP, P100
✔✔Wooden plugs used for - ✔✔Small holes
Simplest method of repair
Aka DC plugs
✔✔Box patch used for - ✔✔Holes with jagged edges protruding inward
✔✔Bucket patch used for - ✔✔Galvanized bucket used in a variety of ways to stop
leaking
✔✔Jubilee primarily used on - ✔✔Fresh water and salt water systems
✔✔Soft patch used on - ✔✔Fresh and salt water systems, low pressure steam lines
✔✔Plastic patch used for - ✔✔Gasoline and other flammable fluid lines
✔✔ESP is used when - ✔✔Dewater compartment not served by installed drainage
systems
