Piping Quiz
zVisit Piping Design Central: http://www.pipingdesign.com
PIPING DESIGN QUESTIONAIRE
Authors: Kumar Rudra, Rakesh Patil and Joshua Thinakaran Oil and Gas Special Projects - L&T, Mumbai - India Copyright 2002. All Rights reserved
Simple 1. What is the ASME code followed for design of piping systems in Process pipings (Refineries & Chemical Industries)? (i) B31.1 (ii) B31.3 (iii) B31.5 (iv) B31.9 Answer (III) 2. What do you mean by following items? i.)ISLB-400 ii) ISMB-600 iii) ISHB-350 iv) ISMC-300 v) ISJB-150 vi) ISLB-200 vii)ISMB-450 viii)ISWB-400 ix) ISJC-200 x) ISLC-350 xii) ISMC-250 Answer: i.Indian STD light weight beam, Web size – 400 ii.Indian STD medium weight beam, Web size – 600 iii.Indian STD ‘H’ beam, Web size – 350 iv.Indian STD medium weight channel, Web size –300 v.Indian STD junior beam, Web size – 150 vi.Indian STD light weight beam, Web size – 200 vii.Indian STD medium weight beam, Web size – 450 viii.Indian STD wide flange beam, Web size – 400 ix.Indian STD junior channel, Web size – 200 x.Indian STD light weight channel, Web size – 350 xi.Indian STD medium weight channel, Web size – 250 3. What is this item? i.ISA-100X100X12 ii) ISA-80X50X10 iii)ISLT-100X100 Answer: i.Equal angle size 100x12 THK ii.Unequal angle size 80x50x10 THK iii.Indian STD light weight tee bar size 100x100 4. What is the difference between stub in and stub on branches? Describe with sketch.
Which one is preferred?
For branching of one size lesser of run pipe, Stub On is preferred. For other branching less than one size of run pipe stub in is preferred. The Design is based on ANSI B 31.3 5. What is the difference between Pipe and Tube? Ans: Pipe is identified by NB and thickness is defined by Schedule whereas Tube is identified by OD. 6. From which size onwards NB of pipe is equal to OD of Pipe? Ans: From the size 14” and onwards NB = OD of pipe. 7. Write down the outside diameter of following pipe? i. 3 inch ii) 6 inch iii) 10 inch iv) 14 inch Answer: i. 3
PIPING DESIGN QUESTIONAIRE
Authors: Kumar Rudra, Rakesh Patil and Joshua Thinakaran Oil and Gas Special Projects - L&T, Mumbai - India Copyright 2002. All Rights reserved
Simple 1. What is the ASME code followed for design of piping systems in Process pipings (Refineries & Chemical Industries)? (i) B31.1 (ii) B31.3 (iii) B31.5 (iv) B31.9 Answer (III) 2. What do you mean by following items? i.)ISLB-400 ii) ISMB-600 iii) ISHB-350 iv) ISMC-300 v) ISJB-150 vi) ISLB-200 vii)ISMB-450 viii)ISWB-400 ix) ISJC-200 x) ISLC-350 xii) ISMC-250 Answer: i.Indian STD light weight beam, Web size – 400 ii.Indian STD medium weight beam, Web size – 600 iii.Indian STD ‘H’ beam, Web size – 350 iv.Indian STD medium weight channel, Web size –300 v.Indian STD junior beam, Web size – 150 vi.Indian STD light weight beam, Web size – 200 vii.Indian STD medium weight beam, Web size – 450 viii.Indian STD wide flange beam, Web size – 400 ix.Indian STD junior channel, Web size – 200 x.Indian STD light weight channel, Web size – 350 xi.Indian STD medium weight channel, Web size – 250 3. What is this item? i.ISA-100X100X12 ii) ISA-80X50X10 iii)ISLT-100X100 Answer: i.Equal angle size 100x12 THK ii.Unequal angle size 80x50x10 THK iii.Indian STD light weight tee bar size 100x100 4. What is the difference between stub in and stub on branches? Describe with sketch.
Which one is preferred?
For branching of one size lesser of run pipe, Stub On is preferred. For other branching less than one size of run pipe stub in is preferred. The Design is based on ANSI B 31.3 5. What is the difference between Pipe and Tube? Ans: Pipe is identified by NB and thickness is defined by Schedule whereas Tube is identified by OD. 6. From which size onwards NB of pipe is equal to OD of Pipe? Ans: From the size 14” and onwards NB = OD of pipe. 7. Write down the outside diameter of following pipe? i. 3 inch ii) 6 inch iii) 10 inch iv) 14 inch Answer: i. 3