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 corrosivity and / or different service conditions of
temperature and / or pressure"
(a) Re-rating;
(b) Change in service;
(c) Repair;
(d) Reconstruction - correct 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 penetramter
(d) All of the above. - correct answer-C
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 - correct answer-B
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. -
correct answer-B
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. - correct answer-C
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 - correct answer-A
A full hydrostatic test (when required) shall be held for __________ hours :-
(a) 24;
(b) 8;
(c) 18;
(d) 12 - correct answer-A
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 - correct answer-B
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 - correct answer-A
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 - correct answer-B
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. - correct answer-C
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) - correct answer-D
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 - correct answer-D
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 - correct answer-A
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. - correct answer-B
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. - correct answer-B
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. - correct answer-B
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 - correct answer-A
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. - correct answer-B
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 - correct answer-B
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" - correct answer-D
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; - correct answer-B
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; - correct answer-B
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; - correct answer-A
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 - correct answer-C
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 - correct answer-B
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 - correct answer-B
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. - correct answer-D
A welding procedure qualified on ¼ inch thick plate can be used to weld groove welds in
materials from to :-
(a) 3/16 to 3/4;
(b) 1/16 to 3/4;
(c) 3/8 to 3/4;
(d) 1/16 to 1/2. - correct answer-D
A welding procedure qualified on 3/8" thick plate can be used to weld groove welds in
materials :-
(a) 3/16 to 3/4;
(b) 1/16 to 3/4;
(c) 3/8 to 3/4;
(d) 1/16 to 3/8. - correct answer-B
A welding procedure qualified under the 1965 ASME Code Section IX :
(a) Is obsolete;
(b) Is still applicable;
(c) Must be re-qualified every 3 years when code is re-issued;
(d) is not addressed by the code - correct answer-B
Standards
__________ is a change from previous operating conditions involving different properties of
the
stored product such as specific gravity or corrosivity and / or different service conditions of
temperature and / or pressure"
(a) Re-rating;
(b) Change in service;
(c) Repair;
(d) Reconstruction - correct 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 penetramter
(d) All of the above. - correct answer-C
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 - correct answer-B
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. -
correct answer-B
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. - correct answer-C
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 - correct answer-A
A full hydrostatic test (when required) shall be held for __________ hours :-
(a) 24;
(b) 8;
(c) 18;
(d) 12 - correct answer-A
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 - correct answer-B
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 - correct answer-A
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 - correct answer-B
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. - correct answer-C
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) - correct answer-D
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 - correct answer-D
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 - correct answer-A
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. - correct answer-B
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. - correct answer-B
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. - correct answer-B
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 - correct answer-A
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. - correct answer-B
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 - correct answer-B
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" - correct answer-D
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; - correct answer-B
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; - correct answer-B
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; - correct answer-A
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 - correct answer-C
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 - correct answer-B
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 - correct answer-B
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. - correct answer-D
A welding procedure qualified on ¼ inch thick plate can be used to weld groove welds in
materials from to :-
(a) 3/16 to 3/4;
(b) 1/16 to 3/4;
(c) 3/8 to 3/4;
(d) 1/16 to 1/2. - correct answer-D
A welding procedure qualified on 3/8" thick plate can be used to weld groove welds in
materials :-
(a) 3/16 to 3/4;
(b) 1/16 to 3/4;
(c) 3/8 to 3/4;
(d) 1/16 to 3/8. - correct answer-B
A welding procedure qualified under the 1965 ASME Code Section IX :
(a) Is obsolete;
(b) Is still applicable;
(c) Must be re-qualified every 3 years when code is re-issued;
(d) is not addressed by the code - correct answer-B
