API 653 Covering all Codes and
Standards
__________ is a change from previous operating conditions involving different
properties of the
stored product such as specific gravity or corrosively and / or different service conditions
of
temperature and / or pressure"
(a) Re-rating;
(b) Change in service;
(c) Repair;
(d) Reconstruction – answer B
A __________ is a device used to determine the image quality of a radiograph.
(a) A step wedge comparison film; (b) A densitometer;
(c) A penetrate
(d) All of the above. - answerC
A corroded roof plate is found to have an average thickness of 0.1" measured over an
area of
100 sq. inches. This area shall be :-
(a) Repaired or replaced;
(b) Found to be acceptable;
(c) Repair is prohibited;
(d) Replacement is mandated - answerB
A double-welded butt joint is defined as :-
(a) A joint between two members that intersect at an angle between 0 degrees (a butt
joint)
and 90 degrees (a corner joint).
(b) A joint between two abutting parts lying in approximately the same plane that is
welded
from both sides.
(c) A joint whose size is equal to the thickness of the thinner jointed member.
(d) A joint between two overlapping members in which the overlapped edge is welded. -
answerB
An external floating roof shall be provided with at least one manhole having a minimum
inside diameter of __________ inches.
(a) 18;
(b) 15;
(c) 24;
,(d) 30. - answerC
A formal Visual External inspection by a qualified inspector shall be done atleast :-
(a) Every 5 years of ¼ CR life whichever is less
(b) Every 5 years of ½ CR life whichever is less
(c) Every 2 years
(d) Every 1- years or ¼ CR life whichever is greater - answerA
A full hydrostatic test (when required) shall be held for __________ hours :-
(a) 24;
(b) 8;
(c) 18;
(d) 12 - answerA
A full-fillet weld is a weld that :-
(a) not less than 1/3 the thinner plate;
(b) the legs equal the thickness of the thinner plate;
(c) the largest isosceles triangle that can be inscribed within the cross section of the
weld
(d) is atleast the thickness of the thicker plate - answerB
A hot tap in a 1.25" thick tank with a minimum metal temperature of 65oF at time of hot
tap,
without having material toughness data is :-
(a) not permitted;
(b) permitted;
(c) not enough information;
(d) not addressed by the code - answerA
A hydrostatic test for a relocated tank :-
(a) may be waived by the Owner / Operator;
(b) is required;
(c) may be waived by the Inspector; (d) is not necessary - answerB
A liquid penetrant examiner must have vision to enable him to read Jagger Type 2
standard
chart at a distance of not less than 12 inches and is capable of distinguishing and
differentiating contrast between colours used. Examiners shall be checked __________
to
ensure that they meet these requirements :-
(a) Quarterly;
(b) Semi-Annually;
(c) Annually;
(d) Bi-Annually. - answerC
A procedure qualification record (PQR) shall address :-
,(a) non-essential variables;
(b) (b) essential variables;
(c) supplemental essential variables (when required);
(d) (d) both (b) and (c) - answerD
A radiograph is made using an X-ray source and two films in each film holder. For
composite
viewing, each film of the composite shall have a minimum density of :-
(a) 4.0; (b) 1.8; (c) 2.0; (d) 1.3 - answerD
A reconstructed tank with a total height of 25' has been determined to have an out-
ofplumbness
of 2-3/4". This is :-
(a) acceptable; (b) unacceptable;
(c) not covered by the code (d) corrected by eternal strengthening - answerA
A riveted tank shell with a butt joint has 3 rows. What is the joint efficiency ?
(a) 0.75"; (b) 0.85"; (c) 0.90; (d) 0.91. - answerB
A SAW welding operator is attempting to quality by radiography on a 6 inch thick test
coupon. Elongated slag inclusions are measured to be 0.2 inch long.
(a) Must weld 2 additional coupons; (b) meets the requirements (passes)
(c) slag must not exceed 0.5" (d) slag is not acceptable. - answerB
A self-supporting cone roof :-
(a) is formed approximately to the surface of a right cone;
(b) both a and d
(c) has columns and / or rafters on trusses
(d) is supported at the periphery. - answerB
A shell to bottom fillet weld for a Grade IV material shall be
(a) made with atleast 2 passed;
(b) may be made with 1 pass
(c) shall be atleast "
(d) both (a) and (c) above - answerA
A single film technique was used to make a radiograph using a Cobalt-60 source. The
minimum permitted density in the area of interest is :
(a) 4.0; (b) 1.8; (c) 2.0; (d) 1.3. - answerB
A supported cone roof :-
(a) is formed approximately to the surface of a right cone;
(b) both (a) and (c);
(c) has columns and / or rafters on trusses;
(d) is supported at the periphery - answerB
, A tank bottom depression is 9.125" deep, radius of depression is 22.5 feet. What is the
maximum depth of depression ?
(a) 7.825"; (b) 8.062"; (c) 8.125"; (d) 8.325" - answerD
A tank bottom lining with a measured thickness of 15 mils should be tested with :-
(a) A high voltage detector in accordance with NACE RP0188;
(b) A low voltage (67.5 volts) wet sponge detector;
(c) A calibrated Ultrasonic tester;
(d) An Eddy Current lift-off detector; - answerB
A weld shall be unacceptable by Visal Inspection if the inspection shows which of the
following ?
(a) The weld has no crater cracks or other surface cracks.
(b) Undercutting exceeds the limits given in 5.2.1.4 for vertical or horizontal butt joints.
(c) The frequency of surface porosity in the weld does not exceed one cluster (one or
more
pores) in any four inches of length, and the diameter of each cluster does not exceed
3/32
inch.
(d) All of the above; - answerB
A weld with a nominal thickness of 1.5 inch is to be radiographed using a film side
penetrameter, hole type. The penetrameter designation should be :-
(a) 25; (b) 30; (c) 35; (d) Both (a) and (b) are responsible; - answerA
A welder may deviate from the parameters specified in WPS if they are nonessential
variables :-
(a) Provided authorisation from inspection is documented;
(b) Provided the welding supervisor approves;
(c) No;
(d) Nonessential variables only apply to PQRs - answerC
A welder qualifies in the 3G position on a plate coupon, he is then qualified to weld in
the
position(s) on NPS 6 pipe :-
(a) F, V; (b) F only; (c) F, V, O; (d) ALL - answerB
A welder who is qualified using a double-groove weld :-
(a) is also qualified to make a single V-groove weld without backing;
(b) is also qualified to make a single V-groove weld with backing;
(c) may weld in the 6G position;
(d) must requalify every 2 months - answerB
A welder's ID must be placed at intervals not exceeding along completed welds :-
(a) One foot; (b) One and a half feet;
(c) Two feet; (d) Three feet. - answerD
Standards
__________ is a change from previous operating conditions involving different
properties of the
stored product such as specific gravity or corrosively and / or different service conditions
of
temperature and / or pressure"
(a) Re-rating;
(b) Change in service;
(c) Repair;
(d) Reconstruction – answer B
A __________ is a device used to determine the image quality of a radiograph.
(a) A step wedge comparison film; (b) A densitometer;
(c) A penetrate
(d) All of the above. - answerC
A corroded roof plate is found to have an average thickness of 0.1" measured over an
area of
100 sq. inches. This area shall be :-
(a) Repaired or replaced;
(b) Found to be acceptable;
(c) Repair is prohibited;
(d) Replacement is mandated - answerB
A double-welded butt joint is defined as :-
(a) A joint between two members that intersect at an angle between 0 degrees (a butt
joint)
and 90 degrees (a corner joint).
(b) A joint between two abutting parts lying in approximately the same plane that is
welded
from both sides.
(c) A joint whose size is equal to the thickness of the thinner jointed member.
(d) A joint between two overlapping members in which the overlapped edge is welded. -
answerB
An external floating roof shall be provided with at least one manhole having a minimum
inside diameter of __________ inches.
(a) 18;
(b) 15;
(c) 24;
,(d) 30. - answerC
A formal Visual External inspection by a qualified inspector shall be done atleast :-
(a) Every 5 years of ¼ CR life whichever is less
(b) Every 5 years of ½ CR life whichever is less
(c) Every 2 years
(d) Every 1- years or ¼ CR life whichever is greater - answerA
A full hydrostatic test (when required) shall be held for __________ hours :-
(a) 24;
(b) 8;
(c) 18;
(d) 12 - answerA
A full-fillet weld is a weld that :-
(a) not less than 1/3 the thinner plate;
(b) the legs equal the thickness of the thinner plate;
(c) the largest isosceles triangle that can be inscribed within the cross section of the
weld
(d) is atleast the thickness of the thicker plate - answerB
A hot tap in a 1.25" thick tank with a minimum metal temperature of 65oF at time of hot
tap,
without having material toughness data is :-
(a) not permitted;
(b) permitted;
(c) not enough information;
(d) not addressed by the code - answerA
A hydrostatic test for a relocated tank :-
(a) may be waived by the Owner / Operator;
(b) is required;
(c) may be waived by the Inspector; (d) is not necessary - answerB
A liquid penetrant examiner must have vision to enable him to read Jagger Type 2
standard
chart at a distance of not less than 12 inches and is capable of distinguishing and
differentiating contrast between colours used. Examiners shall be checked __________
to
ensure that they meet these requirements :-
(a) Quarterly;
(b) Semi-Annually;
(c) Annually;
(d) Bi-Annually. - answerC
A procedure qualification record (PQR) shall address :-
,(a) non-essential variables;
(b) (b) essential variables;
(c) supplemental essential variables (when required);
(d) (d) both (b) and (c) - answerD
A radiograph is made using an X-ray source and two films in each film holder. For
composite
viewing, each film of the composite shall have a minimum density of :-
(a) 4.0; (b) 1.8; (c) 2.0; (d) 1.3 - answerD
A reconstructed tank with a total height of 25' has been determined to have an out-
ofplumbness
of 2-3/4". This is :-
(a) acceptable; (b) unacceptable;
(c) not covered by the code (d) corrected by eternal strengthening - answerA
A riveted tank shell with a butt joint has 3 rows. What is the joint efficiency ?
(a) 0.75"; (b) 0.85"; (c) 0.90; (d) 0.91. - answerB
A SAW welding operator is attempting to quality by radiography on a 6 inch thick test
coupon. Elongated slag inclusions are measured to be 0.2 inch long.
(a) Must weld 2 additional coupons; (b) meets the requirements (passes)
(c) slag must not exceed 0.5" (d) slag is not acceptable. - answerB
A self-supporting cone roof :-
(a) is formed approximately to the surface of a right cone;
(b) both a and d
(c) has columns and / or rafters on trusses
(d) is supported at the periphery. - answerB
A shell to bottom fillet weld for a Grade IV material shall be
(a) made with atleast 2 passed;
(b) may be made with 1 pass
(c) shall be atleast "
(d) both (a) and (c) above - answerA
A single film technique was used to make a radiograph using a Cobalt-60 source. The
minimum permitted density in the area of interest is :
(a) 4.0; (b) 1.8; (c) 2.0; (d) 1.3. - answerB
A supported cone roof :-
(a) is formed approximately to the surface of a right cone;
(b) both (a) and (c);
(c) has columns and / or rafters on trusses;
(d) is supported at the periphery - answerB
, A tank bottom depression is 9.125" deep, radius of depression is 22.5 feet. What is the
maximum depth of depression ?
(a) 7.825"; (b) 8.062"; (c) 8.125"; (d) 8.325" - answerD
A tank bottom lining with a measured thickness of 15 mils should be tested with :-
(a) A high voltage detector in accordance with NACE RP0188;
(b) A low voltage (67.5 volts) wet sponge detector;
(c) A calibrated Ultrasonic tester;
(d) An Eddy Current lift-off detector; - answerB
A weld shall be unacceptable by Visal Inspection if the inspection shows which of the
following ?
(a) The weld has no crater cracks or other surface cracks.
(b) Undercutting exceeds the limits given in 5.2.1.4 for vertical or horizontal butt joints.
(c) The frequency of surface porosity in the weld does not exceed one cluster (one or
more
pores) in any four inches of length, and the diameter of each cluster does not exceed
3/32
inch.
(d) All of the above; - answerB
A weld with a nominal thickness of 1.5 inch is to be radiographed using a film side
penetrameter, hole type. The penetrameter designation should be :-
(a) 25; (b) 30; (c) 35; (d) Both (a) and (b) are responsible; - answerA
A welder may deviate from the parameters specified in WPS if they are nonessential
variables :-
(a) Provided authorisation from inspection is documented;
(b) Provided the welding supervisor approves;
(c) No;
(d) Nonessential variables only apply to PQRs - answerC
A welder qualifies in the 3G position on a plate coupon, he is then qualified to weld in
the
position(s) on NPS 6 pipe :-
(a) F, V; (b) F only; (c) F, V, O; (d) ALL - answerB
A welder who is qualified using a double-groove weld :-
(a) is also qualified to make a single V-groove weld without backing;
(b) is also qualified to make a single V-groove weld with backing;
(c) may weld in the 6G position;
(d) must requalify every 2 months - answerB
A welder's ID must be placed at intervals not exceeding along completed welds :-
(a) One foot; (b) One and a half feet;
(c) Two feet; (d) Three feet. - answerD
