For joints in service in the creep range which of the following is recommended by ASME B16.5? a) Replacement of the joint after 1,000,000 hours of service. b) Periodic tightening of the bolts to prevent leakage. c) Immediate replacement is recommended if the material operates in the creep range. d) Regular flow detection inspection of the piping to fitting welds.

For joints in service in the creep range which of the following is recommended by  ASME B16.5?
a) Replacement of the joint after 1,000,000 hours of service.
b) Periodic tightening of the bolts to prevent leakage.
c) Immediate replacement is recommended if the material operates in the creep range. d) Regular flow detection inspection of the piping to fitting welds.
by

1 Answer

Answer :

b) Periodic tightening of the bolts to prevent leakage.
by

Related questions

When applying to pressure ratings listed in ASME B16.5 at high or low temperatures which of the following must be considered? a) Risk of leakage due to forces and moments developed. b) Bursting of the flanged fitting. c) The bolting forces at the flange. d) All of the above.

Description : When applying to pressure ratings listed in ASME B16.5 at high or low temperatures which of the following must be considered? a) Risk of leakage due to forces and moments developed. b) Bursting of the flanged fitting. c) The bolting forces at the flange. d) All of the above.

Last Answer : a) Risk of leakage due to forces and moments developed.

Ratings for welding neck flanges under ASME B16.5 are based upon which of the following? a) The flange thickness and 40,000 psi yield strength. b) The hub thickness at the welding end and 40,000 psi yield strength. c) The weld metal yield strength. d) The piping wall thickness and yield strength.

Description : Ratings for welding neck flanges under ASME B16.5 are based upon which of the following? a) The flange thickness and 40,000 psi yield strength. b) The hub thickness at the welding end and ... psi yield strength. c) The weld metal yield strength. d) The piping wall thickness and yield strength.

Last Answer : b) The hub thickness at the welding end and 40,000 psi yield strength

Which of the following is not required to be marked on an ASME B16.5 flange or flanged fitting? a) Manufactures name or trademark. b) Material. c) Ratting class and "B16". d) Temperature.

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Last Answer : d) Temperature.

May sockets be provided in the wall of a fitting? a) No. b) Yes. c) Yes, in accordance with ASME B16.5, figure 4. d) Yes, as permitted in ASME B16.20.

Description : May sockets be provided in the wall of a fitting? a) No. b) Yes. c) Yes, in accordance with ASME B16.5, figure 4. d) Yes, as permitted in ASME B16.20.

Last Answer : c) Yes, in accordance with ASME B16.5, figure 4.

What size piping flanges and flanged fittings are addressed by ASME B16.5? a) 1/2" to 24" NPS. b) 1" to 36" NPS. c) 1/4" to 36" NPS. d) 1/4 to 48" NPS.

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Last Answer : a) 1/2" to 24" NPS.

Does ASME B16.5 specify requirements for the alignment and assembly of joints? a) Yes. b) No.

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Last Answer : b) No.

Ring joint gaskets must be in accordance with which of the following? a) API 574. b) ASME B16.5 c) ASME B16.20 d) ASME B31.3

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Which of the following is not recommended by ASME B31.3 when assembling gray cast iron flanges? a) Use high strength bolting at all times. b) Carefully align the flanges. c) Carefully control bolt torque. d) Ensure piping loads transmitted to the flanges are within design conditions.

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Last Answer : a) Use high strength bolting at all times.

When flanges and flanged fittings meet the requirements for multiple materials and are marked for multiple materials and are marked in accordance with ASME B16.5, which of the following pressure rating may be used? e) Any applicable pressure rating. f) The lowest must be used. g) The highest must be used. h) Flanges may only meet one material specification.

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Last Answer : e) Any applicable pressure rating.

When flanged fittings are to be used at temperatures below -20°F, what pressure rating is to be used? a) The pressure rating at the actual service temperature, found by interpretation. b) The pressure rating at -20°F. c) The pressure equal to the flange class. d) Flanges complying with ASME B16.5 may not be used below -20°F.

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What is the maximum temperature for hydrostatic testing per ASME B16.5? a) 70°F b) 100°F c) 125°F d) 200°F

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Which of the following is required to be hydrostatically tested per ASME B31.3? a) Flanges. b) Flanged fittings. c) Flanges and flanged fittings. d) There is no hydrostatic testing requirement in ASME B16.5.

Description : Which of the following is required to be hydrostatically tested per ASME B31.3? a) Flanges. b) Flanged fittings. c) Flanges and flanged fittings. d) There is no hydrostatic testing requirement in ASME B16.5.

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What is the minimum thickness of hub at the welding end per ASME B16.5? a) The numeral pipe thickness. b) 87 ½% of the pipe thickness. c) 112 ½% of the pipe thickness. d) .25".

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Is it permissible to install tapped holes in fittings per ASME B16.5 a) No. b) Yes. c) Yes, if the metal is thick enough to allow the required thread length. d) Yes, as permitted by ASME B16.20.

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When the term "nominal size" is used to describe a component under ASME B16.5, what does this indicate? a) A dimension. b) A size designation. c) The inside diameter. d) The flange bolt circle.

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What pressure does ASME B16.5 limit flanged fittings to during system hydrostatic testing? a) 1.5 times the 100°F pressure rating, rounded to next highest 25psi. b) 1.5 times the flange class. c) The maximum pressure rating for the flange. d) The flange class plus 250psi.

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What must be considered when using flanges at the ratings listed in ASME B16.5 at low temperatures? a) Toughness. b) Shock loadings. c) Sudden changes of stress or temperature. d) All of the above.

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Last Answer : c) Sudden changes of stress or temperature.

Can a manufacturer or contractor use flanges or fittings made in conformance to an earlier edition ASME B16.5 on a current project? a) No. a) b) Yes. b) Yes, if in conformance with the current edition of ASME B16.5. c) Yes, if permitted by the owner-user.

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A flanged joint is composed of all but which of the following? a) The flange b) The bolts. c) The assembly method d) The gasket.

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What is the required duration of hydrotest or fitting NPS 2" and smaller? a) 1 minute b) 2 minutes. c) 3 minutes. d) 5 minutes.

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What is the maximum surface roughness permitted by ASME B31.1 for the sidewall of ring grooves? a) 63 µ in b) 125 µ in. c) 250 µ in. d) 400 µ in

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Two contributors of electronic console failures are heat and vibration. To combat some of their effects, preventive maintenance procedures should include ______________. A. systematic rotation of circuit cards with those from spares to allow component cooling B. periodic changing or cleaning of console ventilation and control room air conditioning filters C. weekly tightening of console foundation bolts and changing of the air in the control room D. all of the above

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