Red
What should you do if encountering a situation where an excavator has no locates but isperforming work?
Contact Damage Prevention
If the direct connect (conductive) method of locating does not work, what other two means can be used? (Select all that Apply)
Induction and Measurements
If a locate is found to be incorrect, what must be done to the incorrect markings?
"Blackout" incorrect markings with black paint
If a gas leak is discovered at any time during a locate performance, what should you do? Select all that apply (LPQ)
Call 911 and Call Centerpoint Dispatch
According to the DOT pipeline safety regulation section 192.481 operators must inspect offshore pipelines for atmospheric corrosion:
Once every calendar year not to exceed 15 months
All pipelines 2" or greater must be noted and the material type placed when known......... What is the correct placement for a 12" Steel pipeline operating at 200 psig?
CPE 12" HP STL
Notification is to be sent for any High Profile facility (pipeline operating over 60 PSIG) within how many feet of the locate request?
60ft
This is a 'first cut" or regulator set situated between the HP gas main and the gas meter at the house. Usually found in rural settings.
Farm tap
If an unlocatable or high profile pipeline is within the scope of an emergency locate request that is to be performed outside of normal working hours, what should you do? Select all that apply.
Follow the High Profile Policy and Call Centerpoint dispatch if unlocatable
According to DOT pipeline safety regulations section 192.481 if atmospheric corrosion is found during an inspection, the operator must
provide protection against the corrosion as required by 192.479
This type of installation is the most common method for installing underground facilities
Direct buried
What must you fill out and get signed by the contractor in order to change the scope of the ticket?
Meet sheet
All pipelines 2" or greater must be noted and the material type placed when known......... What is the correct placement for a 4" plastic pipeline? (LPQ)
CPE 4" PL
According to the DOT, each operator must use a suitable coating material to prevent what?
Atmospheric Corrosion
There are four parts of a corrosion cell. They are
Cathode, Electrolyte, Anode and Metallic Path
If a property does not have a Centerpoint facility within the scope of the ticket, what must be placed on the soft surface?
CPE OK with a Flag in the center of the words
When do you place an M with a circle while locating?
When locating with measurements
If a facility cannot be located (untoneable), what must be placed at the location?
Unlocatable Marker or Flag
According to DOT pipeline safety regulations section 192.481, operators must inspect onshore pipelines for atmospheric corrosion...
Once every 3 years not to exceed 39 months
Coating disbondment is defined by NACE as
the loss of adhesion between a coating and the pipe surface
How many access points are required to preform a locate on a High Profile facility?
2
How deep must you dig in an effort to find a locate wire when one is not visible?
18inches
What should the approximate distance between locate markings?
10ft
According to the DOT each operator must _________ and __________ each pipeline or portion of pipeline that is exposed to the atmosphere, except pipelines under OPS Subpart I 192.489 paragraph (C)
Clean and Coat
When inspecting for atmospheric corrosion, if the coating is disbonded
Visually inspect the steel surface under the disbonded coating