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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