Description : 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.
Last Answer : d) Temperature.
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.
Description : The flange markings on a flanged fitting indicate which of the following? a) Pressure. b) Pressure at a specified temperature. c) Flange class. d) Maximum pressure.
Last Answer : c) Flange class.
Description : 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.
Last Answer : a) 1 minute
Description : Plate material is permitted for use in the construction of which of the following? a) Flange hubs. b) Blind Flanges. c) Elbows. d) All of the above.
Last Answer : b) Blind Flanges.
Description : When a raised face flange gasket surface is machined to a flat face surface, does the flange still comply with ASME B31.3? a) No. b) Yes. c) Yes, provided the flange meets thickness requirements for flat faced flanges per ASME B31.3. d) Yes, if approached by the flange committee.
Last Answer : c) Yes, provided the flange meets thickness requirements for flat faced flanges per ASME B31.3.
Description : How shall the ring groove number be indicated on the edge of the ring groove flange? a) Just the ring groove number. b) The ring groove number is preceded by"R". c) The ring groove number is marked on the face. d) The ring groove number is marked at the bottom of the ring groove.
Last Answer : b) The ring groove number is preceded by"R".
Description : 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.
Last Answer : b) A size designation.
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.
Description : 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 material operates in the creep range. d) Regular flow detection inspection of the piping to fitting welds.
Last Answer : b) Periodic tightening of the bolts to prevent leakage.
Description : The temperature shown for a given pressure rating by class is normally? a) The temperature of the flanged fitting. b) The temperature of the process fluid within. c) The process temperature minus 20°F. d) A and B.
Last Answer : d) A and B.
Description : What class threaded flange is made without a counter-bore? a) 150. b) 300 and lower. c) 400 and lower. d) 600 and lower.
Last Answer : a) 150.
Description : The number of flange bolt holes is always a multiple of: a) 2. b) 4. c) 6. d) 8.
Last Answer : b) 4.
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
Description : 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.
Last Answer : a) 1.5 times the 100°F pressure rating, rounded to next highest 25psi. b) 1.5 times the flange class.
Description : 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 ... to the flange class. d) Flanges complying with ASME B16.5 may not be used below -20°F.
Last Answer : b) The pressure rating at -20°F.
Description : 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.
Last Answer : b) The bolts
Description : What is he required surface finish for raised or flat faced gasket surfaces? a) 63 µ in. b) 125 µ in-250 µ in. c) 250 µ in-400 µ in. d) 400-500 µ in.
Last Answer : b) 125 µ in-250 µ in.
Description : How are reducing fittings designated in size? a) By the smaller size. b) By the larger size. c) By sizes. d) They are not designated by size, just class.
Last Answer : c) By sizes.
Description : 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".
Last Answer : b) 87 ½% of the pipe thickness.
Description : For lapped joints, which of the following is the minimum finished height of face? a) Not less than the nominal pipe wall. b) Not less than .25". c) At least .060". d) 3/8".
Last Answer : a) Not less than the nominal pipe wall.
Description : What is the required duration of hydrotest for fittings NPS 10’’ and larger? a) 1 minute b) 2 minutes. c) 3 minutes. d) 5 minutes.
Last Answer : c) 3 minutes.
Description : What is the required duration of hydrotest for fittings NPS 2½ “thru 8"? a) 1 minute b) 2 minutes. c) 3 minutes. d) 5 minute
Last Answer : b) 2 minutes.
Description : What is the maximum temperature for hydrostatic testing per ASME B16.5? a) 70°F b) 100°F c) 125°F d) 200°F
Last Answer : c) 125°F
Description : Hydrostatic testing is to be performed with: a) Water. b) Kerosene. c) Another fluid provided, its viscosity is no greater than water. d) Any of the above.
Last Answer : d) Any of the above.
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.
Last Answer : b) Flanged fittings.
Description : 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.
Last Answer : c) Yes, if the metal is thick enough to allow the required thread length.
Description : 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
Last Answer : c) ASME B16.20
Description : 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
Last Answer : a) 63 µ in
Description : What is the maximum surface roughness for tongue and groove and small male and female gasket surfaces? a) 63 µ in b) 125 µ in c) 250 µ in d) 400 µ in
Last Answer : b) 125 µ in
Description : 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.
Last Answer : a) Use high strength bolting at all times.
Description : Low strength bolting materials have a yield strength less than or equal to which of the following? a) 20 ksi. b) 30 ksi. c) 40 ksi. d) 45 ksi.
Last Answer : b) 30 ksi.
Description : Which of the following bolting materials are high strength? a) A307B. b) A320 B8. c) A449. d) A193 B7.
Last Answer : d) A193 B7.
Description : Flanges and flanged fittings may be constructed of which of the following materials? a) Castings. b) Forgings. c) Plate. d) All of the above.
Last Answer : d) All of the above.
Description : 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 ... . g) The highest must be used. h) Flanges may only meet one material specification.
Last Answer : e) Any applicable pressure rating.
Description : 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.
Last Answer : c) Sudden changes of stress or temperature.
Description : Joint classes above 150 tend to develop leaks above what temperature if subjected to severe external loads or thermal gradients? e) 250°F f) 400°F g) 600°F h) 750°F
Last Answer : h) 750°F
Description : Class 150 joints tend to develop leaks above what temperature if subjected to severe external loads or thermal gradients? a) 250°F b) 400°F c) 600°F d) 750°F
Last Answer : b) 400°F
Description : Socket welded or threaded flanges are not recommended outside which of the following temperature ranges if severe thermal cycling or gradients are expected? a) -20°-300°F. b) -50°-500°F. c) -50°-750°F. d) -20°-500°F.
Last Answer : b) -50°-500°F.
Description : Does ASME B16.5 specify requirements for the alignment and assembly of joints? a) Yes. b) No.
Last Answer : b) No.
Description : 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.
Last Answer : b) Yes, if in conformance with the current edition of ASME B16.5.
Description : 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.
Last Answer : a) 1/2" to 24" NPS.
Description : WWhat does ASME B16.5 cover? a) Pressure and temperature ratings. b) Materials, dimensions, tolerances, and marking. c) Testing and methods of designating openings. d) All of the above.
Description : The minimum clear cover for R.C.C. columns shall be (A) Greater of 40 mm or diameter (B) Smaller of 40 mm or diameter (C) Greater of 25 mm or diameter (D) Smaller of 25 mm or diameter
Last Answer : Answer: Option C
Description : Where blind flange is used?
Last Answer : Answer: It is used with view to future expansion of the piping system, or for cleaning, inspection etc.
Description : The portion of the slab which acts monolithically with the beam and which resists the compressive stresses, is called _________of flange of the T-beam (a) Length (b) Breadth (c) Thickness (d) Depth
Last Answer : (b) Breadth
Description : Consider the following statements in respect of design of web and flange as splices: 1. Flange splice shall be designed for actual BM at the section. 2. Flange splice shall be designed to resist the actual shear at the section. 3. Web ... are correct? (a) 1 and 3 (b) 2 and 3 (c) 3 and 4 (d)1 and 4
Last Answer : (a) 1 and 3
Description : In shallow type girders, the rail level shall be a) 25mm above the top flange of girder* b) near the bottom of the girder c) near the middle of the girder d) below the girder
Last Answer : a) 25mm above the top flange of girder*
Description : If is the diameter of upper circular portion, the overall depth of a standard egg shaped section, is A. D B. 1.25 D C. 1.5 D D. 1.75 D
Last Answer : ANS: C
Description : Find the shear stress in a flange at the junction of hub in rigid flanged coupling if torsional moment is 2980N-m and diameter of hub being 125mm. Also the thickness of flange is 25mm. a) 6.77N/mm2 b) 10.24N/mm2 c) 4.84N/mm2 d) 4.22N/mm2
Last Answer : c) 4.84N/mm2