API-571 Exam Dumps | A steam actuated soot blower has condensate in the first steam exiting the soot blower. What type of

<< Prev Question Next Question >>

Question 236/272

A steam actuated soot blower has condensate in the first steam exiting the soot blower. What type of damage can be expected to be found when the furnace is brought down for maintenance and inspection?

A. Steam blanketing

B. Thermal fatigue

C. Creep

D. Stress rupture

Question List (272q): Question 1: In piping and equipment, creep cracking can occur where high...; Question 2: What is the chemical symbol for propane or propylene?...; Question 3: In HF service, carbon steel operating above ________ should ...; Question 4: Which of the following can be affected by 885º F Embrittleme...; Question 5: Carbonate cracking typically propagates _________ to the wel...; Question 6: ____________ are characterized by a localized loss in thickn...; Question 7: Units where graphitization may be suspected are the FCCU and...; Question 8: Temper embrittlement _________ be prevented if the material ...; Question 9: Temperature, ________ and stress are critical factors of str...; Question 10: SCC tendency ________ towards the alkaline pH region...; Question 11: Hydrogen stress cracking is the same mechanism that is respo...; Question 12: Which of these materials are not susceptible to Spheroidizat...; Question 13: _________ is most likely found in hard weld and heat-affecte...; Question 14: In HF service, carbon steel forms a protective _________ sca...; Question 15: Type 304L SS is satisfactory for phosphoric acid concentrati...; Question 16: In most cases, brittle fracture occurs only at temperatures ...; Question 17: Which of the following materials are susceptible to nitridin...; Question 18: __________ is a form of cracking that results when certain m...; Question 19: ____________ is a form of environmental cracking that can in...; Question 20: Which of the following is not a primary factor contributing ...; Question 21: Time to failure by thermal fatigue is primarily affected by:...; Question 22: Stainless steel cyclones, piping ductwork and valves in high...; Question 23: Naphthenic acid corrosion is a form of high temperature corr...; Question 24: Creep and stress rupture is more likely in a _________ grain...; Question 25: With sour water corrosion, at a given pressure, the H²S conc...; Question 26: Convert these temperatures - 156º C and 450º F...; Question 27: The best method to inspect for SCC is ____....; Question 28: Annealed steels are more resistant to Spheroidization than n...; Question 29: __________ is a change in the microstructure of certain carb...; Question 30: A 6", A106 Gr B, flanged line carrying caustic wash water at...; Question 31: Sulfidation is primarily caused by ________ and other reacti...; Question 32: __________ is usually found in aqueous environments or servi...; Question 33: Corrosion from oxygen in boiler feed water usually creates:...; Question 34: Different organisms thrive on different nutrients including ...; Question 35: 300 Series SS, 400 Series SS and duplex SS are subject to pi...; Question 36: Naphthenic acid is _____ by catalytic reactions in downstrea...; Question 37: Amine cracking has been reported down to ambient temperature...; Question 38: The extent and depth of decarburization is a function of tem...; Question 39: Atmospheric corrosion:; Question 40: Ferritic stainless steels are usually not used in __________...; Question 41: A fatigue fracture is brittle and the cracks are most often ...; Question 42: Sulfur and chlorine species in fuel will form sulfur dioxide...; Question 43: Once cracking from LME has occurred, grinding out the affect...; Question 44: For galvanic corrosion to take place, three conditions must ...; Question 45: In order for PASCC to occur the material must be ______....; Question 46: __________ are the most common type of equipment susceptible...; Question 47: Titanium should not be used in known hydriding services such...; Question 48: Spheroidization and graphitization are competing mechanisms ...; Question 49: Stress relief and stabilization heat treatment of 300 Series...; Question 50: Soil corrosion of carbon steel can be minimized through the ...; Question 51: Ammonium chloride salts may be whitish, greenish or ________...; Question 52: Which of the following are affected by sulfidation?...; Question 53: Steam blanketing is when the heat flow balance is disturbed;...; Question 54: Since all fuels contain some amount of sulfur, sulfuric and ...; Question 55: Corrosion by HF (Hydrofluoric) acid can result in high rates...; Question 56: Which if the following materials are not susceptible to hydr...; Question 57: Which of the following materials is susceptible to CO² corro...; Question 58: Carburization can be confirmed by substantial increases in _...; Question 59: Hardness levels above ________ are highly susceptible to hyd...; Question 60: Preventative measures to minimize the potential for brittle ...; Question 61: With decarburization, the decarburized layer will be free of...; Question 62: Temper embrittlement can be identified by a(n) shift in the ...; Question 63: Vessels constructed after December, 1987 are subject to the ...; Question 64: Resistance to sulfidation increases as the:...; Question 65: The level of creep damage is a function of the material and ...; Question 66: _________ corrosion rates are found in a gas oil desulfurize...; Question 67: Equipment that is temper embrittled may be susceptible to __...; Question 68: Regular and controlled carbon grades of stainless steels suc...; Question 69: Caustic embrittlement cracking can be effectively prevented ...; Question 70: Cracks connecting hydrogen blisters are referred to as _____...; Question 71: High strength steels are susceptible to LME when they come i...; Question 72: ________ has been a major problem on coke drum shells....; Question 73: ______ is most likely found in hard welds and heat affected ...; Question 74: Which of the following materials is affected by high tempera...; Question 75: Which of the following metals is the most anodic?...; Question 76: Start-up and shutdown of equipment increase the susceptibili...; Question 77: The effects of hydrogen embrittlement ___________ with _____...; Question 78: SCC usually occurs at pH values above two (2). SCC tendency ...; Question 79: Thermal fatigue cracks usually:...; Question 80: Which of these materials are susceptible to brittle fracture...; Question 81: In general, the resistance of iron and nickel based alloys t...; Question 82: Hydrogen permeation or diffusion rates have been found to be...; Question 83: All piping and equipment exposed to HF acid at any concentra...; Question 84: Fatigue cracks usually initiate on the surface at notches or...; Question 85: Thermal fatigue becomes of concern if the temperature swings...; Question 86: High temperature H² / H²S corrosion damage is minimized by u...; Question 87: Many thermal fatigue cracks are filled with:...; Question 88: ________ and _______ damage develop without applied or resid...; Question 89: Protection in a boiler from boiler feed water corrosion is a...; Question 90: Low alloy steels contain a maximum of _______ chrome....; Question 91: At a given pressure, the H²S concentration in the sour water...; Question 92: Hardness is primarily an issue with SSC. Typical low strengt...; Question 93: Geometry, stress level, _________ and material properties ar...; Question 94: ______ is similar to HIC but is a potentially more damaging ...; Question 95: ________ eliminates the susceptibility of most common steels...; Question 96: Which of these materials exhibit an endurance limit below wh...; Question 97: Which of the following is not a critical factor that contrib...; Question 98: Corrosion rates of the anode will be less affected if there ...; Question 99: Which of the following does not increases the likelihood of ...; Question 100: Which of these cast irons are not susceptible to graphitic c...; Question 101: __________ is a form of damage found mostly in older vintage...; Question 102: At elevated temperatures, dissimilar weld metal cracking is ...; Question 103: For a specific material, HTHA is dependent on temperature, h...; Question 104: A condition where steel loses strength due to the removal of...; Question 105: SSC is a form of hydrogen stress cracking resulting from the...; Question 106: The most common method used for monitoring underground struc...; Question 107: With very few exceptions, cooling water should always be on ...; Question 108: The accepted way to test for temper embrittlement is _______...; Question 109: The severity of hydrochloric acid corrosion ________ with __...; Question 110: Dew point corrosion can occur if the metal temperature is be...; Question 111: Which of the following is not a major factor associated with...; Question 112: Corrosion from oxygen tends to be __________ type damage and...; Question 113: Thermal fatigue is caused by:; Question 114: With CUI, corrosion rates __________ with increasing metal t...; Question 115: Sulfidation is also known as ____________....; Question 116: Cavitation is a form of erosion caused by the formation and ...; Question 117: _________ is accelerated high temperature wastage of materia...; Question 118: MIC is often found in _________, bottom water of storage tan...; Question 119: It is generally accepted that stresses approaching _________...; Question 120: Hydrogen blisters may form at many different depths from the...; Question 121: With short term overheating, time to failure will __________...; Question 122: Cracking of dissimilar weld metals occurs in the __________ ...; Question 123: Thermal fatigue damage is in the form of cracking that may o...; Question 124: _________ is a change in the microstructure of certain carbo...; Question 125: Lean amine is generally not corrosive because they have eith...; Question 126: The dewpoint of hydrochloric acid depends on the concentrati...; Question 127: Stresses acting on the weldments are significantly ________ ...; Question 128: When connected to a more anodic material, titanium may suffe...; Question 129: For carbon steel, common velocity limits are generally limit...; Question 130: Dissimilar weld metal cracking can be aggravated by _______....; Question 131: With sulfuric acid corrosion, mix points with _______ cause ...; Question 132: Which of the following materials is susceptible to sigma pha...; Question 133: What test is used to determine a material's toughness?...; Question 134: To prevent hydrogen embrittlement, use lower strength steels...; Question 135: Geometry, stress level, number of cycles and _________ are t...; Question 136: Carbonate SCC can occur at relatively low levels of ________...; Question 137: Vibration-induced fatigue can be eliminated or reduced throu...; Question 138: 300 Series SS, 5Cr, 9Cr and 12Cr alloys are not susceptible ...; Question 139: Cooling water corrosion and __________ are closely related a...; Question 140: The regenerator reboiler and the regenerator are areas where...; Question 141: Susceptibility of an alloy to sulfidation is determined by i...; Question 142: Inspection for wet H2S damage generally focuses on _____ and...; Question 143: Hydrogen blisters may form as surface bulges on the ID, the ...; Question 144: Cracks associated with brittle fracture will typically be __...; Question 145: Steel hardness, __________ and stress are critical factors i...; Question 146: Nitriding is usually confined to the surface of most compone...; Question 147: The primary factors affecting high temperature oxidation are...; Question 148: ____________ is the reduction in toughness due to a metallur...; Question 149: The creep threshold temperature for 1 ¼, 2 ¼, 5 and 9 Cr is ...; Question 150: In general, the resistance of carbon steel and other alloys ...; Question 151: Changing to a more corrosion resistant and/or higher hardnes...; Question 152: ___________ is the result of cyclic stresses caused by varia...; Question 153: What structure is 409 stainless steel?...; Question 154: With sour water corrosion, streams with a pH below ________ ...; Question 155: Graphitization can be prevented by using chromium containing...; Question 156: HCL acid corrosion is found in several units, especially ___...; Question 157: When caustic stress corrosion cracking is a concern, steam o...; Question 158: Which of the following materials are the least susceptible t...; Question 159: Key factors affecting thermal fatigue are the magnitude of t...; Question 160: Corrosion rates of the anode can be high if there is a _____...; Question 161: For pressure vessels, inspection should focus on welds of __...; Question 162: Thermal fatigue cracks usually initiate on the _________ of ...; Question 163: A form of fatigue cracking in which cracks develop under the...; Question 164: Naphthenic acid corrosion is most severe in _________ flow; ...; Question 165: The presence of _________ can destabilize the scale and turn...; Question 166: For furnaces, to prevent PASCC, keep the firebox heated abov...; Question 167: Corrosion under insulation becomes more severe at metal temp...; Question 168: Where is PASCC normally located?...; Question 169: ____________ is often found in piping and equipment that han...; Question 170: Heat treatment can have a significant effect on the toughnes...; Question 171: What structure is 410 stainless steel?...; Question 172: Corrosion of the anode may be significantly higher ________ ...; Question 173: Damage due to __________ is not visible and can only be obse...; Question 174: _________ is a mechanical form of degradation that occurs wh...; Question 175: Thermal fatigue cracks propagate ________ to the stress and ...; Question 176: Weld heat affected zone graphitization is most frequently fo...; Question 177: Cracking of dissimilar weld metals occurs on the _________ s...; Question 178: PWHT is ___________ in preventing caustic SCC....; Question 179: Susceptibility to temper embrittlement is largely determined...; Question 180: Sulfidation is primarily caused by:...; Question 181: Titanium Hydriding damage occurs primarily in sour water str...; Question 182: Which of the following materials are subject to mechanical f...; Question 183: Caustic stress corrosion cracking typically propagates _____...; Question 184: ________ of a component is the most important factor in dete...; Question 185: With chloride stress corrosion cracking, __________ temperat...; Question 186: The amplitude and frequency of vibration as well as the ____...; Question 187: Temper embrittlement is a metallurgical change that is not r...; Question 188: Creep damage is found in high temperature equipment operatin...; Question 189: Amine cracking is ________ likely to occur in lean MEA and D...; Question 190: SSC is a form of hydrogen stress cracking resulting from the...; Question 191: Corrosion in boiler feedwater and condensate return systems ...; Question 192: A quick test for embrittlement from _________ is a bend test...; Question 193: In most cases, brittle fracture occurs only at temperatures ...; Question 194: Which of the methods are effective for finding thermal fatig...; Question 195: Galvanized steel components should not be welded to ________...; Question 196: Amine units are used in refineries to remove H²S, CO² and __...; Question 197: Which of the following materials is not susceptible to Cl SC...; Question 198: The loss in strength from spheroidization (Softening) is usu...; Question 199: The "L" grade of stainless steels will sensitize if exposed ...; Question 200: Damage from sigma phase appears in the form of ________....; Question 201: With Cl SCC, ________ levels of chloride ________ the likeli...; Question 202: With steam blanketing, failure occurs as a result of _______...; Question 203: Most brittle failures appear as:...; Question 204: Cavitation is best prevented by avoiding conditions that all...; Question 205: If wet electrodes or high moisture content flux weld electro...; Question 206: What treatment is used to prevent boiler feed water corrosio...; Question 207: Which of these materials is not susceptible to amine crackin...; Question 208: Mitigation of CUI is best achieved by _________....; Question 209: In vessels and piping, creep cracking can occur where high m...; Question 210: A form of corrosion caused by living organisms such as bacte...; Question 211: A form of thermal cracking, __________, can occur when high ...; Question 212: If wet electrodes or high moisture content flux is used, ___...; Question 213: ___________ cooling water outlet temperatures and/or process...; Question 214: Carbon dioxide (CO²) corrosion results when CO² dissolves in...; Question 215: Liquid metal embrittlement can occur if 300 Series SS comes ...; Question 216: __________ caustic concentrations and ________ temperatures ...; Question 217: Characteristic stress corrosion cracks have many branches an...; Question 218: Alloys with increased amounts of _______ show improved resis...; Question 219: Sigma phase occurs in Ferritic, martensitic, austenitic and ...; Question 220: Increasing the chromium in steels offers no major improvemen...; Question 221: Foul smelling water may be a sign of fouling and/or _______...; Question 222: Wet H²S services or _________ acid services are process wher...; Question 223: Amine cracking is a form of ________ stress corrosion cracki...; Question 224: With creep, increased stress due to loss in thickness from c...; Question 225: Metal dusting is preceded by ________ and is characterized b...; Question 226: ________ usually occurs when a colder liquid contacts a warm...; Question 227: With high temperature hydrogen attack, ________ using a comb...; Question 228: General or localized corrosion of carbon steels and other me...; Question 229: Stress levels and __________ are the critical factors causin...; Question 230: Exposure to high solution strength caustic can result in gen...; Question 231: The more noble material, called the ________, is protected b...; Question 232: Carbon steel is susceptible to SCC when used in ___________ ...; Question 233: In order to minimize and prevent amine SCC, PWHT all carbon ...; Question 234: ________ significantly increases the probability and severit...; Question 235: Sour water corrosion in _________ containing environments ma...; Question 236: A steam actuated soot blower has condensate in the first ste...; Question 237: A prime location for erosion is:...; Question 238: The creep threshold temperature for carbon steel is ________...; Question 239: With high temperature sulfide corrosion (Sulfidation), notic...; Question 240: Ammonium chloride salts are hydroscopic and readily absorb w...; Question 241: Short term overheating is a permanent deformation occurring ...; Question 242: ________ is a form of carbon that may promote carburization,...; Question 243: Sulfidation usually creates:; Question 244: 300 Series SS is susceptible to LME when it comes in contact...; Question 245: With ammonia stress corrosion cracking weld hardness should ...; Question 246: A carbon steel bundle from the overhead condenser in the cru...; Question 247: In design and fabrication, it is advisable to avoid sharp ch...; Question 248: Mechanical fatigue can cause cracks that initiate from the s...; Question 249: At elevated temperature, the carbide phases in certain carbo...; Question 250: Although the loss of toughness from temper embrittlement is ...; Question 251: If weld repairs are required, the effects of temper embrittl...; Question 252: The sudden rapid fracture under stress (residual or applied)...; Question 253: Susceptibility to hydrogen stress cracking __________ with _...; Question 254: What is the chemical symbol for ethane or ethylene?...; Question 255: Erosion-corrosion is a description for the damage that occur...; Question 256: What structure is 304 stainless steel?...; Question 257: Most brittle failures occur:; Question 258: All piping and equipment exposed to HF acid at any concentra...; Question 259: With hydrofluoric acid corrosion, corrosion rates increase w...; Question 260: Dissimilar weld metal cracking occurs because the coefficien...; Question 261: SOHIC is driven by localized stresses so that __________ is ...; Question 262: Which of the following is not a method used to prevent britt...; Question 263: Cracking can occur at low caustic levels if a concentrating ...; Question 264: Which of the following are susceptible to thermal fatigue?...; Question 265: Inspecting for high-cycle fatigue can be difficult since:...; Question 266: ASME Section VIII had few limitations concerning brittle fra...; Question 267: The best way to prevent 885º F embrittlement is to use low _...; Question 268: With cooling water corrosion, _________ oxygen content tends...; Question 269: Formation of a metallurgical phase known as sigma phase resu...; Question 270: Conditions favoring carburization include a high gas phase c...; Question 271: The endurance limit is usually about:...; Question 272: Which of the following materials are generally not suitable ...

Question 236/272

LEAVE A REPLY

Download PDF File