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API 653 EXAM PREP CLOSED BOOK ONLY QUESTIONS AND ANSWERS 2024
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API 653 EXAM PREP CLOSED BOOK ONLY QUESTIONS AND ANSWERS 2024
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API 653 EXAM PREP CLOSED BOOK ONLYWhen it is necessary to install a hot top connection or add a reinforcing plate to
an existing un-reinforced penetration, API 653 requires what type, extent, and
purpose of examination.
A) Magnetic particle examination for slight sub-surface discontinuities shall be
performed in an area equal to twice the diameter of the opening
B) Radiographic examination for cracking shall be performed in the immediate
area
C) Ultrasonic examination for cracking shall be performed in the immediate area
D) Ultrasonic examination for lamination shall be performed in the immediate
area - ANSWERS-D
Gnereally, tank in petroleum service use ____ on the internal surfaces to control
internal corrosion.
A) AC current instead of DC current cathodic protction systems
B) coatings
C) Cathodic protection in conjunction with coatings
D) Since pure hydrocarbon fluids are usually not corrosive experience shows that
internal corrosion will never occur therefore, corrosion control is not necessary -
ANSWERS-B
,API 650 requires telltale holes in reinforcing plates. What is the required
dimension of this hole and what should be done with it after the initial re-pad
pressure test?
A) The hole shall be 3/8" and shall be left open to the atmosphere
B) The hole shall be 1/4" and shall be left open to the atmosphere
C) The hole shall be 3/8" abd shall be closed after testing
D) The hole shall be 1/4" and shall be closed after testing - ANSWERS-B
Repair plates for lapped patch repairs may square or rectangular in shpae. These
plates must be provided with a corner radius of at least:
A) Radius of 1 inch
B) Radius of 2 inches
C) Radius of 3 inches
D) Radius of 4 inches - ANSWERS-B
During the installation of a new steel bottom over an existing steel bottom, which
has been repaired, of water or other electrolyte intrudes into the interstitial
space, what can happen?
A) a galvanic cell may form which will cuase the new steel tank bottom to corrode
at an accelerated rate
,B) An electrochemcical reaction may take place creating hazardous gasses
C) a galvanic cell may form which will cause the old tank bottom to corrode at an
accelerated rate.
D) A galvanic cell may from which will turn the old tank bottom into an anode -
ANSWERS-A
What test is used to determine a materials notch toughness?
A) Impact test
B) Bend test
C) tensile test
D) elongation test - ANSWERS-A
When it is necessary to install a new tank bottom above an existing, it may be
necessary to alter existing shell penetrations. This procedure may require the
existing reinforcing plate to be removed and a new reinforcement plate is added.
This is not permitted when what condition exists?
A) The assembly was originally hardness tested
B) The existing assembly was not impact tested
C) The existing assemby was fabricated from re-claimed material
D) The existing assembly was stress relieved - ANSWERS-D
, The owner/operator is required to maintain complete record file consisting of
three types of records. Which of the following is not one of the three types of
records?
A) Repair/alteration history
B) Fill cycles
C) Construction
D) Inspection - ANSWERS-B
In ultrasonic thickness, the higher the temperature of the steel being examined,
the:
A) reading cannot be obtained
B) higher the reading
C) lower the reading
D) reading will not be affected - ANSWERS-B
ASME section V states the extent of radiographic examination is specified:
A) The extent of any examination will be dictated by the Authorized Inspector
based on his experience
B) The extent of examination shall be as specified by the referencing code
C) the extent of examination will be as specified in SNT-TC-1A
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