API 570 Question Bank (API 570 QB001)

43) Internal visual inspections are __________ on piping unless it is a large diameter transfer line, duct, catalyst line or other large diameter piping system.

a) The most effective inspection

b) The most useful means of inspection

c) Not normally performed

d) The major means of inspection

44) Name an additional opportunity for a normal non-destructive internal inspection of piping.

a) When the piping fails and the interior is revealed

b) When maintenance asks for an internal inspection

c) When piping flanges are disconnected

d) When a fire occurs and the pipe is in the fire

45) Why is thickness measurement inspection performed?

a) To satisfy jurisdictional requirements

b) To determine the internal condition and remaining thickness of the piping components

c) To determine the external condition and amount of deposits inside the piping

d) To satisfy heat transfer requirements of the piping

46) Who performs a thickness measurement inspection?

a) The operator or control man

b) The inspector or examiner

c) The maintenance workers or supervisor

d) The Jurisdiction or OSHA

47) When corrosion product build-up is noted during an external visual inspection at a pipe support contact area, lifting of such supports may be required for inspection. When doing this, care should be:

a) Exercised if the piping is in-service

b) Used when determining the course of action

c) Practiced so as not to disturb the supports

d) Taken that a complete record of the problem is made

48) Qualified operating or maintenance personnel also may conduct external visual inspections when:

a) Satisfactory to the owner-user

b) Acceptable to the inspector

c) Agreeable to the maintenance supervisor

d) Permissible to the operation supervisor

49) Who would normally report vibrating or swaying piping to engineering or inspection personnel?

a) Operating personnel

b) Maintenance personnel

c) Jurisdictional personnel

d) OSHA personnel

50) Thermography is used to check for:

a) Vibrating sections of the piping system

b) Detecting localised corrosion in the piping system

c) Abnormal thermal expansion of piping systems

d) Hot spots in refractory lined piping systems

51) Thickness measurement locations (TMLs) are specific __________ along the piping circuit where inspections are to be made

a) Points

b) Areas

c) Items

d) Junctures

52) The minimum thickness at each TML can be located by:

a) Electromagnetic techniques

b) Ultrasonic scanning or radiography

c) Hammer testing

d) MT and / or PT

53) Where appropriate, thickness measurements should include measurements at each of __________ on pipe and fittings:

a) Two quadrants

b) Three locations

c) Four quadrants

d) Six points

54) Where should special attention be placed when taking thickness measurements of an elbow?

a) The outlet end

b) The inlet end

c) The inside and outside radius

d) The sides

55) TMLs should be marked on inspection drawings and __________ to allow repetitive measurements

a) On the inspectors notes

b) On a computer system

c) On the piping system

d) On maintenance department charts

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