U3 Icc Tank Tightness Testing

U3 ICC TANK TIGHTNESS TESTING

,U3 ICC TANK TIGHTNESS TESTING



On a steel tank without cathodic protection, if a coating is flawed, what happens at the flaw?



a. Cathodic surface is increased



b. Current flow is increased from this area



c. Current flow is increased to this area



b. Current flow is increased from this area




On an impressed current cathodic protection system, the negative wire of the rectifier is connected to
the:

a. Anode

b. Cathode

c. Drop tube

d. Dielectric union

b. Cathode

, U3 ICC TANK TIGHTNESS TESTING
All are examples of acceptable release detection for tanks, except:

a. Impressed current cathodic protection

b. Automatic tank gauging

c. Statistical inventory reconciliation

d. Soil-vapor monitoring

a. Impressed current cathodic protection




When a tank is temporarily closed, the cathodic protection system:

a. Must be turned off

b. Must remain in operation

c. Should be removed

d. Operator can have it on or off.

b. Must remain in operation




When a steel tank is installed with a galvanic CP system attached, the tank gauges are usually connected
through a riser with a dielectric bushing. What is the purpose of that?

a. To prevent static discharge

b. To minimize effects of noise

c. To electrically isolate the tank from the tank gauge

d. To prevent water intrusion in the tank

c. To electrically isolate the tank from the tank gauge




Factory-installed diectric coatings may include all of the following except: