Anodic material used for the cathodic protection of underground buried steel pipeline is_________________?

A. White metal
B. Phosphorous bronze
C. Monel
D. Zinc

A. Calorising
B. Galvanising
C. Zincification
D. Tempering

A. Plastic
B. Glass
C. Steel
D. Rubber

A. Above the highest
B. Above the lowest
C. Between the first & second
D. Between the second & third

A. Moving mercury and graphite
B. Graphite and moving mercury
C. Moving mercury and carbon
D. Moving mercury and crimped steel wire

A. Cast
B. Stainless
C. Free carbon
D. Carbon chrome