NACE CP 2 Quiz 3 exam 2023/ 22 Questions
with solved Solutions.
A mitigation control bond should be designed to
1. carry the necessary current
2. restrict the current to that required to mitigate the problem
3. keep the current going in one direction if necessary
4. return the potential on the interfered with structure to its pre-interference state - -All
of the above
-A mitigation bond may cause more problems under which of the following conditions?
1. Where the interfering structure bond point is more electropositive than the interfered
with structure
2. Where the interfering structure bond point is more more electronegative than the
interfered with structure
3. Where there are more than one, or changing, current discharge points
4. Where the interfering structure bond point potential varies from being more
electronegative to more electropositive than the interfered with structure - -1, 3 and 4
1. Where the interfering structure bond point is more electropositive than the interfered
with structure
3. Where there are more than one, or changing, current discharge points
4. Where the interfering structure bond point potential varies from being more
electronegative to more electropositive than the interfered with structure
-AC voltages on pipelines do NOT result from
A. resistive (conductive) coupling
B. electrostatic (capacitive) coupling
, C. electromagnetic induction coupling
D. thermodynamic coupling - -D. Thermodynamic coupling
-On a cathodically protected pipeline, AC corrosion can be expected at which current
densities?
1. 30 mA/m2
2. 10 A/m2
3. 110 A/m2
4. 200 A/m2 - -3 and 4
-A close interval potential survey is a test where structure-to-electrolyte potentials are
measured
A. at 1 to 5 meter spacing along a pipeline
B. at 1 to 3 kilometer spacing along a pipeline
C. at the quarter points around a large tank
D. close to the DC power source - -A. At 1 to 5 meter spacing along pipeline
-The AC voltage-to-ground on a section of pipeline paralleling AND crossing a power
line tends to be highest
1. where the power line and pipeline cross
2. point where the power line and pipeline separate
3. at the ends of the pipeline
4. evenly along the pipeline - -1, 2 and 3
1. where the power line and pipeline cross
2. point where the power line and pipeline separate
3. at the ends of the pipeline
-Methods of lowering hazardous AC voltages includes installing which of the following?
with solved Solutions.
A mitigation control bond should be designed to
1. carry the necessary current
2. restrict the current to that required to mitigate the problem
3. keep the current going in one direction if necessary
4. return the potential on the interfered with structure to its pre-interference state - -All
of the above
-A mitigation bond may cause more problems under which of the following conditions?
1. Where the interfering structure bond point is more electropositive than the interfered
with structure
2. Where the interfering structure bond point is more more electronegative than the
interfered with structure
3. Where there are more than one, or changing, current discharge points
4. Where the interfering structure bond point potential varies from being more
electronegative to more electropositive than the interfered with structure - -1, 3 and 4
1. Where the interfering structure bond point is more electropositive than the interfered
with structure
3. Where there are more than one, or changing, current discharge points
4. Where the interfering structure bond point potential varies from being more
electronegative to more electropositive than the interfered with structure
-AC voltages on pipelines do NOT result from
A. resistive (conductive) coupling
B. electrostatic (capacitive) coupling
, C. electromagnetic induction coupling
D. thermodynamic coupling - -D. Thermodynamic coupling
-On a cathodically protected pipeline, AC corrosion can be expected at which current
densities?
1. 30 mA/m2
2. 10 A/m2
3. 110 A/m2
4. 200 A/m2 - -3 and 4
-A close interval potential survey is a test where structure-to-electrolyte potentials are
measured
A. at 1 to 5 meter spacing along a pipeline
B. at 1 to 3 kilometer spacing along a pipeline
C. at the quarter points around a large tank
D. close to the DC power source - -A. At 1 to 5 meter spacing along pipeline
-The AC voltage-to-ground on a section of pipeline paralleling AND crossing a power
line tends to be highest
1. where the power line and pipeline cross
2. point where the power line and pipeline separate
3. at the ends of the pipeline
4. evenly along the pipeline - -1, 2 and 3
1. where the power line and pipeline cross
2. point where the power line and pipeline separate
3. at the ends of the pipeline
-Methods of lowering hazardous AC voltages includes installing which of the following?
