This article is about Cathodic Protection Aramco CBT Exam Tests which is based on CBT test of aramco. We collected questions who have passed CBT Exam of Aramco Plumbing QC Inspector. Here in this details all questions focused on Impressed Current Cathode Protection.
Cathodic Protection Aramco CBT Questions
Question 1: What is the minimum distance required between an anode and its individual DC source?
A) 10 meters
B) 25 meters
B) 25 meters
B) 25 meters
The correct answer is: C) 50 meters
Question 2: For temporary cathodic protection systems using a 3-pin test station, within how many days should galvanic anodes be provided, achieved or installed for underground buried pipelines?
a) 10 days
b) 20 days
c) 30 days
d) 40 days
The correct answer is: c) 30 days
Question 3: What is the minimum design life of an impressed current cathodic protection system (ICCP)?
a) 5 years
b) 10 years
c) 15 years
d) 20 years
The correct answer is: d) 20 years
Question 4: What is the minimum design life of a galvanic anode system for electrically isolated short pipeline section (GACP)?
a) 5 years
b) 10 years
c) 15 years
d) 20 years
The correct answer is: d) 20 years
Question 5: What is the minimum design life for a temporary cathodic protection (CP) system?
a) 1 year
b) 2 years
c) 5 years
d) 10 years
The correct answer is: b) 2 years
Question 6: What is the minimum current density requirement for the surface of uncoated pipelines to achieve cathodic protection?
a) 10.00 (mA/m²)
b) 15.00 (mA/m²)
c) 20.00 (mA/m²)
d) 25.00 (mA/m²)
The correct answer is: c) 20.00 (mA/m²)
Question 7: Which of the following represents the minimum current density requirement for coated pipeline surface?
A) 1.00 (mA/m²)
B) 0.50 (mA/m²)
C) 0.20 (mA/m²)
D) 0.10 (mA/m²)
The correct answer is: D) 0.10 (mA/m²)
Question 8: What is the minimum current density requirement for temporary cathodic protection (CP) systems on coated pipelines?
A) 0.1 mA/m²
B) 0.05 mA/m²
C) 0.01 mA/m²
D) 0.005 mA/m²
The correct answer is: D) 0.005 mA/m²
Question 9: What is the designed minimum negative pipe-to-soil potential of a pipeline with reference to a copper/copper sulfate electrode?
A. 0.2 VDC
B. 0.5 VDC
C. 1.0 VDC
D. 1.2 VDC
The correct answer is: D. 1.2 VDC
Question 10: What is the minimum negative pipe to soil potential requirement with reference to a copper/copper sulfate electrode for a Temporary CP System?
A) 0.5 VDC
B) 1.0 VDC
C) 1.5 VDC
D) 2.0 VDC
The correct answer is: B) 1.0 VDC
Question 11: What is the maximum acceptable negative pipe-to-soil potential for a pipeline, with reference to a copper/copper sulfate electrode?
A) 0.5 VDC
B) 1.5 VDC
C) 2.5 VDC
D) 3.0 VDC
The correct answer is: D) 3.0 VDC
Question 12: What is the minimum negative pipe-to-soil potential requirement, with reference to a copper/copper sulfate electrode, for pipeline valves and associated buried piping including pipeline junctions, PS, CS and others?
A. 0.5 VDC
B. 1.0 VDC
C. 1.5 VDC
D. 2.0 VDC
The correct answer is: B. 1.0 VDC
Question 13: What is the maximum negative pipe-to-soil potential for buried pipeline valves and associated piping, including pipeline junctions, pig stations, cathodic protection stations, and others, with reference to a copper/copper sulfate electrode?
1.0 VDC
2.0 VDC
3.0 VDC
None of the above
The correct answer is: 3.0 VDC
Question 14: What is the impressed current anode design parameter consumption rate for high silicon cast iron anode materials?
A. 0.45 Kg/Ay
B. 0.45 Kg/A
C. 0.45 Kg/yr
D. 0.45 Ay/Kg
The correct answer is: A. 0.45 Kg/Ay
Question 15: Which of the following statements is true about the maximum current density for an impressed current anode design using high silicon cast iron anode material?
A) It is 0.45 (Kg/Ay)
B) It is 1.0 (mA/cm²)
C) It is 0.7 (mA/cm²)
D) It is 0.005 (mA/m²)
The correct answer is: C) It is 0.7 (mA/cm²)
Question 16: What is the consumption rate for magnesium anode material in the design parameters of a galvanic anode system?
A) 0.71 (kg/Ay)
B) 7.71 (kg/Ay)
C) 77.1 (kg/Ay)
D) 771 (kg/Ay)
The correct answer is: 7.71 (kg/Ay)
Question 17: What is the potential of magnesium anode material as per galvanic anode design parameters, with reference to a copper/copper sulfate electrode?
A) -1700 (mV) (Cu/CuSO4)
B) 1700 (mV) (Cu/CuSO4)
C) -0.85 (V) (Ag/AgCl)
D) 0.85 (V) (Ag/AgCl)
The correct answer is: A) -1700 (mV) (Cu/CuSO4)
Question 18: What is the typical depth classification for anode installation that is classified as Deep Anode Beds?
A) 5 meters
B) 10 meters
C) 15 meters
D) 20 meters
The correct answer is: C) 15 meters
Question 19:What is the minimum distance required between anode bed and a buried structure with rectifier rated output of 35 amps or less?
A) 10 meters
B) 25 meters
C) 35 meters
D) 50 meters
The correct answer is: C) 35 meters