Graphitization Study guides, Class notes & Summaries

Pressure applied inside a pipe creates stress in the pipe wall. These stresses are highest on which weld orientation? - ANSWER longitudinal weld Per B31.3, how much RT is conducted on circumferential welds of a pipe in normal service? - ANSWER 10% for welded pipe, the normal thickness of under-tolerance is? - ANSWER .010 or 10 mils The corrosiveness of soils can be determined by measuring the soils: - ANSWER Resistivity when qualifying a weld procedure the essential variables must: -...

Pressure applied inside a pipe creates stress in the pipe wall. These stresses are highest on which weld orientation? - Answer- longitudinal weld Per B31.3, how much RT is conducted on circumferential welds of a pipe in normal service? - Answer- 10% for welded pipe, the normal thickness of under-tolerance is? - Answer- .010 or 10 mils The corrosiveness of soils can be determined by measuring the soils: - Answer- Resistivity when qualifying a weld procedure the essential variables mus...

NACE CP2 Exam Questions With 100% Correct Answers Oxidation - answerloss of electrons, positive charge atoms (anode) reduction - answergain of electrons, negative charged atoms (cathode) forms of corrosion - answeruniform, crevice, galvanic (dissimilar metals) if two metals have to be couple then best to couple metals close together in the galvanic series, pitting, intergranular, selective leaching (dezincification, graphitization), velocity phenomena, environmental cracking (corrosion fa...

Pressure applied inside a pipe creates stress in the pipe wall. These stresses are highest on which weld orientation? - longitudinal weld Per B31.3, how much RT is conducted on circumferential welds of a pipe in normal service? - 10% for welded pipe, the normal thickness of under-tolerance is? - .010 or 10 mils The corrosiveness of soils can be determined by measuring the soils: - Resistivity when qualifying a weld procedure the essential variables must: - be recorded on both the WPS...

NACE CP2 – EXAM Questions | Questions with 100% Correct Answers | Updated & Verified 2024 oxidation - answerloss of electrons, positive charge atoms (anode) reduction - answergain of electrons, negative charged atoms (cathode) forms of corrosion - answeruniform, crevice, galvanic (dissimilar metals) if two metals have to be couple then best to couple metals close together in the galvanic series, pitting, intergranular, selective leaching (dezincification, graphitization), velocity pheno...

1. oxidation: loss of electrons, positive charge atoms (anode) 2. reduction: gain of electrons, negative charged atoms (cathode) 3. forms of corrosion: uniform, crevice, galvanic (dissimilar metals) if two metals have to be couple then best to couple metals close together in the galvanic series, pitting, intergranular, selective leaching (dezincification, graphitization), velocity phenomena, environmental cracking (corrosion fatigue, hydrogen embrittlement, SCC (Carbonates/bicarbonates) 4...

NACE CP2 ALREADY RATED A oxidation loss of electrons, positive charge atoms (anode) reduction gain of electrons, negative charged atoms (cathode) forms of corrosion uniform, crevice, galvanic (dissimilar metals) if two metals have to be couple then best to couple metals close together in the galvanic series, pitting, intergranular, selective leaching (dezincification, graphitization), velocity phenomena, environmental cracking (corrosion fatigue, hydrogen embrittlement, SCC (Carbonat...

oxidation - ANSWER-loss of electrons, positive charge atoms (anode) reduction - ANSWER-gain of electrons, negative charged atoms (cathode) forms of corrosion - ANSWER-uniform, crevice, galvanic (dissimilar metals) if two metals have to be couple then best to couple metals close together in the galvanic series, pitting, intergranular, selective leaching (dezincification, graphitization), velocity phenomena, environmental cracking (corrosion fatigue, hydrogen embrittlement, SCC (Carbonates/b...

In severe refinery services which type of pipe is normally used? - seamless Pressure applied inside a pipe creates stress in the pipe wall. These stresses are highest on which weld orientation? - longitudinal weld Per B31.3, how much RT is conducted on circumferential welds of a pipe in normal service. - 10% for welded pipe, the normal thickness of under-tolerance is? - .010 or 10 mils when qualifying a weld procedure the esential variables must: - be recorded on both the WPS & PQR ...

1. oxidation: loss of electrons, positive charge atoms (anode) 2. reduction: gain of electrons, negative charged atoms (cathode) 3. forms of corrosion: uniform, crevice, galvanic (dissimilar metals) if two metals have to be couple then best to couple metals close together in the galvanic series, pitting, intergranular, selective leaching (dezincification, graphitization), velocity phenomena, environmental cracking (corrosion fatigue, hydrogen embrittlement, SCC (Carbonates/bicarbonates) 4...