10 Asme B31.3 Final Exam Closed

Transcript

Professional Training and Consultation ASME B31.3 Process Piping 3rd upto 5th December 2005, Dammam, Saudi Arabia ASME B 31.3 PROCESS PIPING Final Ea! "Closed Boo#$ 1. To avoid excessive excessive stress stress concentrat concentration ion at flanged flanged joints joints which type of flange will you recommend? a. b. c. d. ". #hoose correct statement. a. b. c. d. '. $%W $%W pipe pipes s are are expe expens nsiv ive e co comp mpar ared ed to se seam amle less ss.. Seam Se amle less ss pipe pipes s are are c che heap aper er than than $%W $%W but but the they y have have lowe lowerr strength than $%W. Seam Se amle less ss pipe pipes s a are re expe expens nsiv ive e but but ca can n not not be used used for for higher temperatures. &ll &ll of abo above are are inco incorrrect rect stat statem eme ents. nts. (T) *T) +T) ,T and %T shall be performed as specified in the a. b. c. d. 0. Slip on flange Weld-nec flange !oth a and b are oay !lind flange &S*$ &S*$ &S*$ &S*$ !+( !+( !+ !+( !+( #ode) #ode) #o #ode) #ode) Section Section Section Section ( / (  What What is is the the only only cat categ egor ory y flui fluid d serv servic ice e that that may may be be subj subjec ectt to an initial service lea test? a. b. c. d. #ategory #ategory #ategory #ategory *  2 3 8th Floor, Al-Subeaei Towers, Kin Abdula!i! cor" #rince Faisal $in Fahd Streets, Al-Khobar, Saudi Arabia ● T%& '())* 3 88+ 88+ ))33 ● FA '())* 3 88+ )5)5 ● ino.otoitc"com ● www"otoitc"com 1 Professional Training and Consultation ASME B31.3 Process Piping 3  upto 5  December 2005, Dammam, Saudi Arabia rd 4. What will be 3ydrotest pressure for a piping system with design pr 5 166 psig) and safe stress at design condition is 17)666 psi while safe stress at test condition 8ambient9 is 1:)766 psi? a. b. c. d. ;. 146 psig 1'6 psig 1;4 psig 2one of above & piping is to be pneumatically tested at test pr 5 76 psig. What will the pressure at which a preliminary lea chec shall be performed? a. b. c. d. <. th 06 "6 "4 76 psig psig psig psig +re-heating) whenever specified is a. &pplicable to strength welds and not for tac welds b. c. d. 7. Strength welds and seal welds only Strength welds) tac welds and seal welds Strength welds only =or pressure testing of piping systems) which of the following statement8s9 are correct? a. b. c. d. 3a>ard of released energy is higher in case of hydrostatic test since 3ydrostatic pressure is 46 higher than design pr while pneumatic pressure is only 16 higher. =or hydrotesting water alone can be used and no other li@uid. +neumatic test shall be conducted only if hydrostatic test is impracticable. a and c above 8th Floor, Al-Subeaei Towers, Kin Abdula!i! cor" #rince Faisal $in Fahd Streets, Al-Khobar, Saudi Arabia ● T%& '())* 3 88+ ))33 ● FA '())* 3 88+ )5)5 ● ino.otoitc"com ● www"otoitc"com 2 Professional Training and Consultation ASME B31.3 Process Piping 3  upto 5  December 2005, Dammam, Saudi Arabia rd :. #ode ! '1.' recommends and mandates min) re@uired pre-heat temp) for welding of pipes. When do the recommendations become mandatory? a. b. c. d. 16. th &t &t &t &t ambient ambient ambient ambient temperature temperature temperature temperature above 6 deg # above 16 deg # below 16 deg # below 6 deg # f Two pipes different pre-heat re@uirements say t1 and t" are to be welded) the pre- heat for their joining shall be 8t 1 and t" are in o #9 a. b. c. d. 3igher of to1 and to" Aower of to1 and to" &verage of to1 and to" 2one of above --------------- $nd -------------- 8th Floor, Al-Subeaei Towers, Kin Abdula!i! cor" #rince Faisal $in Fahd Streets, Al-Khobar, Saudi Arabia ● T%& '())* 3 88+ ))33 ● FA '())* 3 88+ )5)5 ● ino.otoitc"com ● www"otoitc"com 3