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

1 Answer

Answer :

b) 125 µ in

Related questions

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 : 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 : 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 : 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 : 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 : 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 : 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 : 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 : 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 : Flat rate parcel rates Flat Rate Parcel Boxes size Dimension of boxes (in mm) Weight (in Kg.) Tariff (in Rs.) Small - S 250*50*300 0 to 1 125 Medium - M 250*100*300 Above 1 to 2.5 200 Large - L 300*250*200 Above 2.5 to 5 400

Last Answer : Large - L 300*250*200 Above 2.5 to 5 400

Description : Benign migratory glossitis or Geographic Tongue, manifests itself in the oral cavity as, A. Irregularly outlined areas of hyperkeratosis of the dorsal surface of the tongue B. Furrows outlined the ... (fissures) radiating from a central fissure G. Irregular area in the midline of the tongue

Last Answer : C. Loss (atrophy) of filiform papillae in multiple irregularly outlined areas

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 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 : 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 : 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 : 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 : 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 : The number of flange bolt holes is always a multiple of: a) 2. b) 4. c) 6. d) 8.

Last Answer : b) 4.

Description : When the center of a blind flange is raised, how much smaller in diameter shall the raised portion be in relation to the ID of the fitting? a) 1/2". b) 3/4". c) 1" d) 1.25"

Last Answer : c) 1"

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 : 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 : 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 : 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 : 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 : 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 : 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 : 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 : 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 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 : 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 : 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 : 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 : 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 : 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 : 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.

Last Answer : d) All of the above.

Description : Incorrect statement for co-efficient of friction could be that A. The coefficient of friction is denoted by the Greek letter µ. B. The coefficient of friction is directly proportional to ... D. The coefficient of friction is inversely proportional to the force pressing the surfaces together

Last Answer : The coefficient of friction is constant even in the conditions of fast slipping and high contact pressure

Description : What would you do if you were remodeling and at one point uncovered the original floor and discovered it's tongue and groove oak?

Last Answer : I would laminate over it.

Description : What is the recommended minimum range of illumination required by BS EN 970 for inspection of a welded surface? a) 90 to 125 lux b) 150 to 250 lux c) 350 to 500 lux d) 35 to 50 lux

Last Answer : c) 350 to 500 lux

Description : A solid shaft has diameter 80 mm. It is subjected to a torque of 4 KNm. The maximum shear stress induced in the shaft would be (a) 75/p N/mm2 (b) 250/p N/mm2 (c) 125/p N/mm2 (d) 150/p N/mm2

Last Answer : (c) 125/p N/mm2