80. If a user signs a contract to build a pressure vessel on January 1, 1997, what edition of the Code would be applicable as a minimum?
A. 1995 Edition, Addenda 1996 B. 1995 Edition, Addenda 1995 C. 1995 Edition, no Addenda
D. The date of the edition when the vessel is completed
81. Which of the following is not considered a piping component and therefore not exempt from the scope of the Code?
A. Pipe B. Fittings C. Valves
D. Product storage vessel
82. Which of the following pressure vessel categories are exempt from inspection by an Authorized Inspector during construction?
A. Those having a volume of 5 cu ft and design pressure of 250 PSI B. Those having a volume of 3 cu ft and design pressure of 400 PSI C. Those having a volume of 1.2 cu ft and design pressure of 900 PSI D. Those having a volume of 1.5 cu ft and design pressure of 605 PSI
83. Pressure vessels with a volume of 1 1/2 cu ft and 600 PSI design pressure can be exempted from Authorized Inspection provided they are not required by the rules to be _______.
A. Provided with quick actuating closures B. Used for water service only
C. Used for steam service less than 400oF D. Used for noncorrosive service
84. Who establishes the design requirements for a new pressure vessel?
A. Manufacturer B. Design firm
C. The user or his designated agent D. ASME
85. What is the date of the acceptable edition of SNT-TC-1A to be used for new construction?
A. 1992 B. 1984 C. 1996 D. 1975
86. Material subject to stress due to pressure shall conform to _____.
A. ASTM, latest edition
B. Section VIII, Division 1, Subsection B C. Section VIII, Division 1, Subsection C D. Section II
87. Which of the following parts are not considered to be subject to stress due to pressure?
A. Reinforcing pads B. Legs of the vessel C. Shells
D. Stiffening rings
88. The term plate is considered to also include:
A. Strip and sheet B. Lugs C. Skirts D. Baffles
89. Welding materials only have to comply with the requirements for _____ to be used in the manufacture of a pressure vessel.
A. Carbon content B. Proper chemistry C. Correct length D. Marking or tagging
90. The Code paragraph that allows using of a material that is not fully identified with a specification permitted by the Code is _____.
A. UG-77 B. UG-10
C. Appendix 3
D. UG-11
91. When no specific exceptions apply, the minimum thickness of the heat transfer plates of plate type heat exchangers is _____.
A. 1/4 in.
B. No minimum
C. 1/16 in.
D. 3/8 in.
92. Plate material may be used at full design pressure when the mill undertolerance does not exceed _____.
A. 12 1/2%
B. 18%
C. The value established by the owner
D. The smaller of 0.01 in. or 6% of the ordered thickness
93. Pipe is ordered by its nominal thickness, where would this manufacturing undertolerance limits be found?
A. In the owners purchasing specification B. In Section VIII, Division 1
C. In Section II, Part D
D. In the pipe and tube specifications listed in Subsection C
94. The dimensional symbols used in the design formulas throughout the Code represent dimensions in the _____ condition.
A. Corroded B. As built
C. As designed
D. Normally desirable
95. The temperature used when calculating the required thickness of a shell or head is known as the _____
design temperature.
A. Marginal B. Minimum C. Maximum D. Optimal
96. The acronym MDMT stands for _____.
A. Major Design Method Theory B. Minimum Design Metal Temperature C. Maximum Design Metal Temperature D. Minimum Design Material Temperature
97. Which carbon low-alloy material listed below can be exempted from impact testing per UG-84?
A. P-No. 8, 1/2 in.
B. P-No. 1, Group 3, Curve E, 1 in.
C. P-No. 1, Group 1 or 2, Curve C, not exceeding 2 in.
D. P-No. 1, Group 1 or 2, Curve D, not exceeding 1 in.
98. P-No. 1, Group 1 or 2 material listed on Curve A is exempted from impact testing if it does not exceed _____.
A. 1 in.
B. 2 in.
C. 1/2 in.
D. 9/16 in.
99. Loadings to be considered in designing a pressure vessel are:
A. Internal and external pressure B. Wind
C. Snow D. All of the above
100. If a steel casting has a weld seam with a joint efficiency of 0.70 and is examined in accordance with the minimum requirements of the material specification what would be the appropriate “E” value to use when calculating the required thickness of the casting?
A. 0.70 B. 1.00 C. 0.80 D. 1.00
101. You are calculating the required thickness of a cylindrical shell under internal pressure. The inside radius including corrosion allowance is 24 in. The corrosion allowance is 0.125 in. What inside radius would you use?
A. 24 in.
B. 24.125 in.
C. 48.50 in.
D. 26 in.
102. What is the weld joint efficiency to be used on an NPS 12 nozzle of P-No. 1 material butt welded to a 3/4 in. shell, which has a backing strip, left in place and is spot radiographed?
A. 0.85 B. 0.60 C. 1.00 D. 0.80
103. When performing thickness calculations for shells and tubes under external pressure what value must first be determined?
A. L / Do ratio B. D / D ratio C. Do / t ratio D. t / Do ratio
104. You are calculating the required thickness for external pressure of a shell having a Do / t ratio of 66.
The actual L / Do ratio is 75. At what value would you enter Figure G on the L / Do ordinate?
A. 50 B. 75 C. 0.50 D. 0.20
105. When calculating the required thickness for external pressure of a shell factor B must be determined.
Considering the Do / t ratio what are the three parameters required to determine the factor?
A. Material, stress, temperature
B. Factor A, modulus of elasticity, material C. Factor A, material, and the design temperature D. Thickness, factor A, design temperature
106. The minimum required thickness of a formed head with pressure on the concave side is the thinnest point after _____.
A. Cutting the plate B. Forming C. Heat treating D. Welding
107. Ellipsoidal heads of what ratio are calculated using the formula in UG-32?
A. 3:1 B. 2:1.2 C. 4:1 D. 2:1
108. The semiellipsoidal form is defined as:
A. The minor axis equals one-half the inside head diameter B. Half a sphere
C. Half the minor axis (inside depth of the head minus the skirt) equals one-fourth of the outside head diameter
D. Half the minor axis (inside depth of the head minus the skirt) equals one-fourth of the inside head diameter
109. The UG-32 formula for determining minimum thickness of a torispherical head considers what specific knuckle radius?
A. 10% of outside crown radius B. 6% of the inside crown radius C. 2.88 in.
D. 6% of the inside head diameter
110. If a head is formed with a flattened spot what is the C factor that must be used?
A. 0.33m B. 0.25 C. 1.2 D. 0.17
111. An unstayed flat head similar to Figure UG-34(f) is made up of two pieces welded together using a Type 2 butt joint, which is only visually examined. What joint efficiency would be applicable?
A. 0.65 B. 0.80 C. 0.90 D. 1.00
112. A seamless unstayed flat head similar to Figure UG-34 (b)(1) is welded to a shell using a butt weld.
What efficiency would be used to calculate required thickness if there was no radiography performed on the circumferential weld?
A. 1.00 B. 0.55 C. 0.85 D. 0.90
113. What formula would be used to determine the internal design pressure for a circular unstayed flat cover?
A. UG-34, (1) B. UG-34, (3) C. UG-32,(e) D. UG-34, (7)
114. The maximum inside diameter of a welded opening in a vessel head of 1/2 in. thickness, which does not require a reinforcement calculation, is _____.
A. 3 1/2 in.
B. 6 in.
C. 3tr
D. 2 3/8 in.
115. No two isolated unreinforced openings shall have their centers closer to each other than:
A. Five times their radii B. The sum of their diameters C. 3d
D. 12 in.
116. When calculating the required thickness of a seamless nozzle for a reinforcement problem and the nozzle is made from ERW pipe what efficiency would be used?
A. 0.65 B. 0.90 C. 1.00 D. 0.85
117. The allowable stresses of the nozzle and shell are 17500 and 13800 respectively, what would be the maximum strength reduction factor?
A. 1.00 B. 1.268 C. 0.788 D. 0.60
118. What happens to the formula for A in Figure UG-37.1 when fr1 = 1.0?
A. Nothing
B. Everything after the plus (+) sign is equal to 0 C. (1 – fr1) = 1
D. F becomes 0.5
119. When calculating the limits of reinforcement normal to the surface and there is no reinforcing element installed the value of _____ is used for te.
A. 1.0 B. 0.5 C. 0 D. 32
120. The governing limit of reinforcement parallel to the vessel surface is the larger of:
A. R or Dn + t B. D or Rn + tn + t C. d or Rn + tn + t D. 1 or 3 above
121. With the exception of studding outlet flanges _____ within the limits of reinforcement shall not be considered to have reinforcing value.
A. Bolted flange material B. Split reinforcing elements C. Bolting
D. Stiffener
122. Exposed inside edges shall be _____ or _____.
A. Machined, chamfered B. Chamfered, rounded C. Avoided, rounded D. Tapered, rounded
123. Material traceability can be maintained by several methods. One of those is:
A. Transfer of the original identification markings B. Tell the QC Inspector
C. A coded marking
D. Marking the ASTM material specification on the material
124. Where service conditions prohibit the use of die-stamping for material identification, which of the following is a substitute?
A. Magic marker B. vibro etching C. color coding D. All of the above
125. When plates are rolled to form a longitudinal joint for a cylindrical shell they are first _____ to avoid flat spots along the finished joint.
A. Crimped B. Beveled C. Radiographed D. Visually inspected
126. When a shell section is welded into a vessel operating under internal pressure the difference between the maximum and minimum inside diameters at any cross section shall not exceed _____ of the nominal diameter at the cross section being considered.
A. 2%
B. Square root of Rt C. 5/8%
D. 1%
127. When pressure parts extend over pressure retaining welds the welds shall be _____ for the portion of the weld to be covered.
A. Left as is
B. Ground flush C. Notched D. Radiographed
128. Non pressure parts extending over pressure retaining welds shall be _____ or _____ to clear those welds
A. Ground flush, notched or coped B. Machined, beveled C. Radiographed, MT
D. MT, PT
129. Each set of impact test specimens shall consist of _____ specimens.
A. One
B. Two sets of three C. Four D. Three
130. A full size Charpy impact test specimen has a dimension of _____.
A. 10 mm x 11 mm B. 0.394 in. x 0.394 in.
C. 0.394 in. x 0.393 in.
D. 0.262 in. x 0.394 in.
131. What is done when full size impact test specimens cannot be obtained?
A. Estimate the ft-lbf that could be obtained B. Refer to standard tables
C. Subsize specimens are to be used D. Use a drop weight test as an alternative
132. You are to impact test a material, which is 1 in. thick, and has a minimum specified yield strength of 55 ksi. What is the ft-lbf requirement?
A. 20 ft-lbf B. 15 ft-lbf C. 30 ft-lbf D. 50 ft-lbf
133. The acceptance criteria for materials having a specified minimum tensile strength of 95,000 PSI or greater is based on the _____.
A. The ratio of stresses to the ft-lbf value
B. Maximum lateral expansion opposite the notch C. Minimum lateral expansion opposite the notch D. Charpy V Notch values taken
134. A subsize impact test specimen must be used which is 0.118 in. thick. What temperature reduction would be taken?
A. 30oF B. 40oF C. 80oF D. 15oF
135. The material being impact tested has a minimum specified yield strength of 35 ksi. A _____
temperature difference is permitted.
A. 25oF B. 15oF C. 0oF D. 10oF
136. When the plate material manufacturer does not performed the heat treatments required by the material specification a letter _____ is marked next to the material specification designation on the plate.
A. T B. G C. NPT D. N
137. Duties of the Inspector include which of the following:
A. Verifying that welding procedures and welders have been qualified B. Verifying that heat treatments have been properly performed
C. Verifying that required nondestructive examinations have been performed D. All of the above.
138. _____ materials are the only product form that must have a material test report provided.
A. Plate B. Pipe C. Casting D. Forging
139. A 1 in. shell is to be welded to a tube sheet 3 in. thick using a corner joint per Figure UW-13.2. What must be done to the weld preparation in the flat plate prior to welding?
A. Visually examine the entire surface B. UT 10% of the circumference C. Examined by either MT or PT D. Examined by random radiography
140. Before welding a nozzle into a shell the Inspector must:
A. Make certain the nozzle fits the vessel curvature B. Verify the identification markings
C. Examine the material for imperfections D. All of the above
141. The maximum allowable working pressure for a complete vessel is:
A. Maximum internal or external pressure including static head B. Maximum internal or external pressure excluding static head
C. Maximum pressure at the top of the vessel excluding any static head D. Average maximum pressure between the top and bottom of the vessel 142. The maximum allowable working pressure for a vessel part is:
A. Maximum internal or external pressure including static head B. Maximum internal or external pressure excluding static head C. Maximum pressure at the bottom of the part
D. Average maximum pressure between the top and bottom of the vessel 143. The formula for hydrostatic testing is:
A. P = 1.5 x MAWP
B. P = 1.25 x MAWP x St /Sd
C. P = 1.3 x MAWP x St / Sd
D. P = 3 x Design Pressure
144. A special hydrostatic pressure test is permissible which utilizes the _____ thickness including corrosion allowance and the allowable stress at _____ temperature multiplied by 1 1/2.
A. Nominal, test B. Minimum, design C. Postulated, 100oF D. Assumed, test
145. When a hydrostatic test exceeds the test pressure either accidentally or intentionally what must be done?
A. The vessel is rejected
B. Have an engineer perform a stress analysis C. Stop the test and repeat
D. Must be inspected by the Inspector for visible distortion
146. When hydrostatic testing a pressure vessel which has more than one chamber, each chamber _____.
A. Shall be tested using the differential in any adjacent chamber B. Shall be tested without pressure in any adjacent chamber C. Shall be tested with the full test pressure in all other chambers D. Shall be tested using a combined hydrostatic pneumatic test
147. Single wall pressure vessels designed for vacuum service only shall be hydrostatic pressure tested at not less than _____.
A. 1.3 times the difference between normal atmospheric pressure and the minimum design internal absolute pressure
B. 30” of water gage
C. Two times the difference between normal atmospheric pressure and the minimum design internal absolute pressure
D. 15 PSI
148. The required visual inspection after application of the hydrostatic test pressure is conducted at not less than _____.
A. Four-fifths the test pressure
B. The MAWP to be stamped on the vessel C. The test pressure divided by 1.3
D. Ten percent above operating pressure 149. What type liquids may be used for hydrostatic testing?
A. Water
B. Any nonhazardous liquid if below its boiling point
C. Combustible liquids having a flash point less than 110o F D. All of the above
150. The recommended test temperature above the MDMT for hydrostatic testing in accordance with the ASME Code is _____.
A. 10oF B. 30oF C. 20oF D. 50oF
151. The hydrostatic test pressure shall be applied to a filled pressure vessel when _____.
A. The vessel and its contents are at about the same temperature B. The Inspector believes it should be applied
C. Required by the test procedure
D. All personnel are at a safe distance from the test site
152. What is the maximum metal temperature that need not be exceeded during a hydrostatic pressure test?
A. 70oF
B. 30oF above the MDMT C. 120oF
D. 10oF above the Design temperature
153. A small liquid relief valve installed on the vessel set to _____ times the hydrostatic test pressure is a recommended precaution to prevent overpressure and damage
A. 3 B. 2
C. 1 1/2
D. 1 1/3
154. Except for lethal service a vessel _____ be painted, coated or internally lined prior to the hydrostatic pressure test.
A. May
B. May not
C. Should D. Must
155. The formula for determining the pneumatic test pressure is:
A. P = 1.25 x Maximum Operating Pressure B. P = 1.5 x MAWP x St / Sd
C. P = 1.1 x MAWP x St / Sd
D. P = 3 x Minimum Operating Pressure
156. The metal temperature during ASME pneumatic test shall be maintained at least _____ above the MDMT.
A. 10oF B. 20oF C. 60oF D. 30oF
157. The two steps in pressurizing a vessel for the pneumatic test are:
A. Increase to one-half test pressure then in steps of one-tenth test pressure until test pressure is reached
B. Rapidly raise to one-third test pressure then raise slowly to test pressure C. Increase to one-third test pressure then in steps of one-twentieth test pressure D. Raise to one-half test pressure then to full test pressure in equal steps
158. The required visual inspection after application of the pneumatic test pressure is conducted at a pressure equal to _____ of test pressure.
A. Two-thirds B. Four-fifths C. One-half D. One-tenth
159. Except for lethal service a vessel _____ be painted, coated or internally lined prior to the pneumatic pressure test.
A. May
B. May not
C. Should D. Must
160. Indicating test gages shall be connected _____.
A. Directly to the vessel
B. Within 30 feet of the bottom of the vessel C. In sets of three to the vessel
D. Always with a recording gage to the vessel
161. When the operator controlling a pressure test cannot see the pressure gage _____.
A. A telephone system shall be installed between the test gage observer and test controller B. A second gage shall be installed that can be observed by the test pressure controller C. They estimate when the test pressure is reached
D. Visual communication between pressure gage observer and pressure test controller must be established
162. An indicating pressure gage, which has a range _____, should be used for pressure tests.
A. About double the test pressure B. About 1 1/2 times the test pressure C. About three times the test pressure D. About 1 1/3 times the test pressure
163. In no case shall indicating pressure gages have a range of neither less than _____ nor more than _____ times the test pressure.
A. 2, 4
B. 3, 4
C. 1 1/2, 4
D. 3, 5
164. A digital pressure gage having _____ may be used for pressure tests.
A. Any range
B. A range specified by the Inspector C. A very narrow range
D. A range of only 0.5 to 6 times the test pressure 165. Pressure test gages shall be calibrated against _____.
A. A calibrated master gage B. A standard deadweight tester C. A deadweight test gage D. Either 1 or 2 above
166. When magnetic particle examinations are prescribed they shall be done in accordance with Appendix _____,
A. 12 B. 6 C. 8 D. 7
167. When liquid penetrant examinations are prescribed they shall be done in accordance with Appendix
168. The units of measurement that are mandatory for Manufacturer’s Data Reports and markings on pressure vessels is:
A. U.S. Customary and metric B. U.S. Customary C. English
D. Metric
169. Which of the following can be found on the required marking for a pressure vessel?
A. The name of the manufacturer preceded by the words “made by”
B. The MAWP _____PSI at _____oF C. The month and year built
D. The minimum design product temperature
170. A vessel is constructed by arc or gas welding, what symbol would appear under the Code symbol stamp to denote this type of construction?
A. A B. L C. P D. W
171. A vessel is constructed for special service as an unfired steam boiler, what symbol would appear under the Code symbol stamp to denote this service condition?
A. UB B. DF C. W D. HT
172. A vessel has been radiographed in accordance with UW-11 where the complete vessel satisfies the requirements of UW-11(a)(5) and the spot radiography requirements of UW-11 (a)(5)(b) have been applied, what marking would appear under the Code symbol stamp?
A. None
B. RT 2
C. RT 3
D. SR
173. A vessel has been radiographed in accordance with UW-11 where the complete vessel satisfies the spot radiography requirements of UW-11(b), what marking would appear under the Code symbol stamp?
A. None
B. SR 3
C. RT 3
D. RT 4
174. A vessel has been radiographed in accordance with UW-11 where only part of the vessel has satisfied the radiographic requirements of UW-11(a) and none of the markings RT 1, RT 2 or RT 3 apply, what marking would appear under the Code symbol stamp?
A. None
B. SR 3
C. RT 3
D. RT 4
175. A vessel has been radiographed in accordance with UW-11 where the complete vessel has had all butt welds radiographically examined for their full length, what marking would appear under the Code symbol stamp?
A. None
B. SR 2
C. RT 1
D. RT 2
176. A vessel has been designed with only visual examination required of the butt welded joints. What marking would appear under the Code symbol stamp for this condition?
A. RT 4
B. None
C. RT 3
D. NR
177. The marking HT is used for vessels that have been _____.
A. Fully heat treated B. Partially heat treated C. Hydrostatically tested D. Hydrogen tested
178. The marking PHT is used for vessels that have been _____.
A. Partially hydrogen tested B. Partially head tested C. Partially heat treated D. Pneumatically tested
179. A pressure vessel is a single chamber and has been completely shop fabricated what Manufacturer's Data Report form would be used?
A. U-1 B. P-4 C. P-1 D. U-1A
180. What Manufacturer’s Data Report form would be used for a pressure vessel part?
A. P-3 B. U-1 C. U-2 D. P-4A
181. All pressure vessels other than unfired steam boilers shall be protected by a pressure relieving device that shall prevent the pressure from rising more than the greater of _____% or _____ PSI above the MAWP.
A. 10, 3
B. 15, 5
C. 25, 10
D. 40, 3
182. What is the minimum size of liquid relief valve permitted by Section VIII, Division 1?
A. NPS 10
B. NPS 24
C. NPS 1
D. NPS 1/2
183. When a single pressure relief device is used on a pressure vessel it shall be set to operate at a pressure not exceeding _____.
A. The MAWP
B. The operating pressure C. The design pressure D. The mean design pressure