CSWIP 3.1 Free Downloadable Question & Answers

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API 510 Free Downloadable Question Bank

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API 510 Free Downloadable Question Bank

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API 510 Free Downloadable Question Bank

API 510 Pressure Vessel Inspector Certification Examination Practice Questions With Answers are available here for free download. The first available download file contents 20 questions with answers all closed book exam questions. Use below given link to download.

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API 570 Question Bank (API 570 QB001)

161) Buried piping also may be surveyed for integrity by removing the line from service and performing a leak test. This inspection method typically involves pressurising the line with a __________, allowing time for the __________ to diffuse to the surface and surveying the buried line with a gas-specific detector to detect the __________

a) Tracer gas (such as helium or sulphur hexafluoride)

b) Light hydrocarbon (such as butane)

c) Smoke type material (such as chemical smoke)

d) Water vapour (such as steam)

162) Repairs to coating on buried piping may be tested using 

a) A low-voltage holiday detector

b) Light taps with an inspection hammer

c) A flaw indicator fluid

d) A high-voltage holiday detector

163) If buried piping leaks are clamped and reburied:

a) No further action is required unless the piping leaks again

b) The date of installation shall be marked on the clamp for future identification

c) A record of the location and the date of installation shall be maintained

d) The clamped line shall be leak tested.

164) A 10" diameter piping system with 4" diameter and 6" diameter reinforced branch connections is to have changes made to it. Which of the following is considered an alteration?

a) A new 1" diameter un-reinforced nipple is installed

b) A new 8" diameter reinforced branch connection is installed

c) A new 4" diameter reinforced branch connection is installed

d) A new 3" diameter reinforced branch connection is installed

165) Which of the following would not be classified as an applicable code to which a piping system was built?

a) ASME B31.3

b) ASME B31.1

c) ASA B31.1-1955, Section 3

d) ASTM A-20

166) Which of the inspection agencies listed below is NOT an Authorised Inspection Agency as defined in API 570. 

a) Jurisdictional inspection organisation

b) Owner-user inspection organisation

c) ASTM inspection organisation

d) Independent inspection organisation

167) An authorised piping inspector is an employee of an authorised inspection agency who is qualified to perform the functions specified in API 570. Which individual listed below is not usually an authorised piping inspector.

a) An owner-user inspector.

b) A jurisdictional inspector

c) An NDE examiner

d) An insurance inspector

168) Which of the following qualifies as auxiliary piping ?

a) Control valve manifolds

b) Bypass lines around exchangers

c) Pump seal oil lines

d) Orifice runs

169) CUI stands for:

a) Control unit inspector

b) Corrosion under insulation

c) Corrected unobtrusive inserts

d) Corroded underground installation

170) Deadlegs legs of a piping system are:

a) The upstream piping of control valve manifolds

b) Supports attached to a pipeline that has no product in them

c) The upstream part of an orifice runs

d) Sections that normally have no significant flow

171) A defect is an imperfection of a type or magnitude exceeding the __________ criteria.

a) Non-specific

b) Imprecise

c) General

d) Acceptable

172) The design temperature of a piping system component is the temperature at which, under the coincident pressure, the __________ is required.

a) Smallest thickness or highest component rating

b) Greatest thickness or highest component rating

c) Maximum thickness or lowest component rating

d) Minimum thickness or minimum component rating

173) An examiner is a person who __________ the inspector

a) Supplants

b) Assists

c) Supervises

d) Directs

174) Hold point is a point in the repair or alteration process beyond which work may not proceed until the __________ has been performed and documented

a) PWHT required

b) Required inspection

c) RT required

d) Ultrasonic testing

175) What is an imperfection?

a) It is a flaw or discontinuity noted during inspection that may be subject to acceptance.

b) It is a defect noted during inspection that is unacceptable. 

c) It is a weld flaw noted during an inspection that may be subject to repair

d) It is a blemish that is only cosmetic and acceptable under all conditions.

176) __________ is a response or evidence resulting from the application of a non-destructive evaluation technique

a) Indication

b) Imperfection

c) Breach

d) Division

177) What are points where chlorine is introduced in reformers, water is added in overhead systems, etc. called

a) Primary process points

b) Level bridle points

c) Injection points

d) Test points

178) What is the loss of ductility and notch toughness in susceptible low-alloy steels such as 1.25 and 2.5 Cr., due to prolonged exposure to high-temperature service called?

a) Creep

b) Temper embrittlement

c) Incipient melting

d) Graphitisation

179) Secondary process piping is small-bore (less than or equal to _____) process piping downstream of normally closed block valves.

a) NPS 3/4

b) NPS 1

c) NPS 2

d) NPS 3

180) A test point is an area defined by a circle having a diameter not greater than __________ inches for a line diameter not exceeding 10 inches or not greater than __________ inches for larger lines.

a) 3, 4

b) 2, 3

c) 1, 2

d) 3/4, 1

181) When making a repair utilising a welded full encirclement repair sleeve and the sleeve material is different from the pipe material, you should:

a) Consult the piping engineer

b) Use a weld rod matching the higher strength material

c) Use a weld rod matching the lower strength material

d) Use an alloy weld rod such as Inco-A

182) What type of electrode should be used when welding a full encirclement repair sleeve?

a) Low-hydrogen electrode

b) Low-phosphorous electrode

c) Low-chrome electrode

d) Low-nitrogen electrode

183) Which of the following welding electrodes is low-hydrogen ?

a) E6010

b) E7016

c) E7011

d) E7014

184) When welding a small repair patch, the diameter of electrodes used should not exceed 

a) 1/8"

b) 3/16"

c) 5/32"

d) 1/4"

End of API 570 QB001. For answers check next post

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API 570 Question Bank (API 570 QB001)

151) On buried piping, what is the frequency of pipe coating holiday surveys?

a) The frequency is governed by the leak test interval of the pipe

b) It is usually based on indications that other forms of corrosion control are ineffective.

c) Surveys are normally made every 5 years

d) Pipe coating holiday surveys are made when the pipe is excavated.

152) For a piping buried in lengths greater than __________ feet and not cathodically protected, evaluation of soil corrosivity should be performed at 5-year intervals.

a) 50

b) 75

c) 100

d) 150

153) If buried piping is cathodically protected, the system should be monitored at intervals in accordance with Section 10 of NACE RP0169 or Section 90 of API RP 651. 

API RP 651 specifies __________ interval.

a) Annual

b) Biannual

c) Biennial

d) Trennial

154) Buried piping inspected periodically by excavation shall be inspected in lengths of __________ feet at one or more locations judged to be most susceptible to corrosion

a) 2 to 4

b) 4 to 6

c) 6 to 8

d) 8 to 10

155) After excavation of buried piping, if inspection reveals damaged coating or corroded piping:

a) The condition should be noted in the records and the inspection interval shortened

b) The complete piping system must be day-lighted (excavated) for repair or replacement.

c) The damaged coating or corroded piping must be repaired or replaced

d) Additional piping shall be excavated until the extent of the condition is identified.

156) If buried piping is contained inside a casing pipe, the casing should be:

a) Capable of carrying the same pressure as the product pipe

b) Checked to see if its protective coating is intact and serviceable

c) Pressure tested to make sure it is serviceable

d) Inspected to determine if water and / or soil has entered the casing

157) An alternative or supplement to inspection of buried piping is leak testing with  liquid at a pressure at least __________ % greater than the maximum operating pressure at intervals ½ the length of those shown in Table 9-1 of API 570 for piping NOT cathodically protected and at the same intervals as shown in Table 9-1 for cathodically protected piping.

a) 5

b) 10

c) 25

d) 50

158) The leak test for buried piping should be for a period of __________ hours.

a) 4

b) 8

c) 12

d) 24

159) The leak test for a 8" diameter buried piping system is 300 psi. After 7 hours, the pressure reacts 273 psi. What should the inspector do?

a) Nothing is required. The loss of pressure is negligible and will not affect the test. The loss can be disregarded.

b) The system should be re-pressurised to the original leak test pressure and the test should begin again.

c) The test charts and the temperature should be reviewed to determine if any change in temperature caused the pressure drop.

d) The piping should be visually inspected externally and / or inspected internally to find the leak and assess the extent of corrosion.

160) A buried piping system that is not cathodically protected has to have an inspection interval set. The soil resistivity is checked and found to be 3400 ohm/cm. As the inspector, what interval would you set?

a) 2.5 years

b) 7.5 years

c) 5 years

d) 10 years

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API 570 Question Bank (API 570 QB001)

136) Acceptance of a welded repair or alteration shall include __________ in accordance with the applicable code and the owner-user's specification, unless otherwise specified in API 570.

a) Nominal Pragmatic Sizing (NPS)

b) NBE

c) Safeguards

d) Nondestructive examination

137) After welding is completed on a repair or alteration, __________ in accordance with API 570 shall be performed if practical and deemed necessary by the inspector.

a) NPS

b) Safety sanctions

c) BE

d) A pressure test

138) When are pressure tests normally required?

a) Pressure tests are normally required after alterations and any repair

b) Pressure tests are normally required after alterations and major repairs

c) Pressure tests are normally required after major and minor repairs

d) Pressure tests are normally required only as specified by the owner-user

139) When a pressure test is not necessary or practical, what shall be utilised in lieu of a pressure test?

a) NPS

b) Nondestructive examination

c) Vacuum visual examination

d) NBE

140) Special procedure in place of a pressure test after an alteratino or repair may be done only after consultation with :-

a) The operations and the repair organisation

b) The inspector and the piping engineer

c) The jurisdiction

d) The examiner and the inspector

141) When it is not practical to perform a pressure test of a final closure weld that joins a new or replacement section of piping to an existing system, several requirements shall be satisfied. Which of the following is NOT one of the requirements?

a) The closure weld is a full-penetration fillet weld between a weld neck flange and standard piping component or straight sections of pipe of equal diameter and thickness, axially aligned, and or equivalent materials. For design cases up to Class 150 and 500oF, slip-on flanges are acceptable alternates.

b) MT or PT shall be performed on the root pass and the completed butt weld. Fillet welds must have PT / MT on the completed weld.

c) The new or replacement piping is pressure tested.

d) Any final closure butt weld shall be of 100 % radiographic quality; or angle-beam UT may be used, provide the appropriate acceptance criteria is established.

142) Which of the following is NOT a requirement for re-rating a piping system by changing the temperature or the MAWP:

a) The existing pressure relieving devices are still in place and set as they were originally

b) Calculations are performed by the piping engineer or the inspector

c) Piping flexibility is adequate for design temperature changes

d) A decrease in minimum operating temperature is justified by impact test results, if required by the applicable code.

143) Why is the inspector of buried process piping (not regulated by DOT) different from other process piping inspection ?

a) The insulating effect of the soil increases the possibility of more internal combustion

b) Internal corrosion has to be controlled by cathodic protection

c) Significant external deterioration can be caused by corrosive soil conditions

d) Internal corrosion must be controlled by internal coatings.

144) Indications of leaks in buried piping may include several indications. Which of the ones listed below is NOTone of the indications ?

a) A change in the surface contour of the ground.

b) Water standing on the pipeline right-of-way

c) Discoloration of the soil

d) Notice odour

145) Corrosion cells can form on both bare and coated pipe where bare steel contacts the soil. How can these cells be detected ?

a) Run an acoustic emission test on the piping

b) Visually survey the route of buried piping

c) The potential at the area of corrosion will be measurable different than other areas and a close-interval potential survey can detect the location of corrosion

d) Run an internal survey of the piping using a video camera

146) A pipe coating holiday survey is used to locate coating defects on coated pipes. It can be used on newly constructed pipe systems to ensure that the coating is intact and holiday-free. More often, it is used on buried pipe to:

a) Show the measurable differences in electrical potential in corroded areas

b) Evaluate coating serviceability for buried piping that has been in-service for along time.

c) Determine the depth of the piping for resistivity testing

d) Evaluate the cathodic protection components of the under-ground pipe

147) Cathodically protected buried piping should be monitored __________ to assure adequate levels of protection:

a) Regularly

b) Intermittently

c) Erratically

d) Frequently

148) If an "intelligent pigging" system is used to inspect buried piping, what type of bends are usually required in the piping system ?

a) Five diameter bends

b) 90 degree pipe ells

c) Ten diameter bends

d) Three diameter bends

149) How often should above-grade visual surveillance of a buried pipeline right-of-way be made?

a) Once a month

b) Approximately 6 month intervals

c) Once a year

d) Once every 3 months

150) How often should poorly coated pipes with inconsistent cathodic protection potentials have a pipe-to-soil potential survey made ?

a) Yearly

b) Every 2 years

c) Every 5 years

d) Every 7 years

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