amnoorulaman

amnoorulaman

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Member since
Oct 5, 2008
Last active
Dec 18, 2008
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  1. #Threads

    527feb63-e305-4360-93ae-0018dbf99ff1

    engg_vijhi Can anybody explain me that why eccentric reducers are used in control valve assembly ..? Can we use concentric ...if no...

  2. #Threads

    df8494e4-9f69-48b4-b8a7-cdf37029f4f0

    What is the ASTM code for the following? i. CS pipe ii) CS fittings iii)CS flanges iv)AS pipe P5/P11 v)Cast CS Valves...

  3. #Threads

    7b7953f6-d137-42e5-808e-0b856d5391ee

    thanks jvprime

  4. #Threads

    2a64eb55-cadf-4349-802d-db91b097baa3

    What do you mean by NPSH? How do you calculate it? NPSH: Net Positive Suction Head. NPSH is the pressure available at...

  5. #Threads

    93afe224-b96a-4b97-9c0b-0b9cb25a37cc

    Re: please help me Soozanplease answer my question. I'm sorry .I know my question dosn't relate to this forum . but I...

  6. #Threads

    c28c0f03-02a0-4a17-b55f-c7292452e045

    What do you mean by Cavitation in Pump? A pump is designed to handle liquid, not vapour. Vapour forms if the pressure...

  7. #Threads

    7edf69d0-e290-4e5d-9b2d-329dceca4f19

    Concentric reducer is used in pump suction. (Yes / No). Explain. Answer: No. Air pockets may form if concentric reducer is used...

  8. #Threads

    d26e8380-6544-4360-9145-98530d422f52

    What should be the radius of long radius elbow? Answer: 1.5D (Where “D” is the diameter of the pipe) 14. Normally where...

  9. #Threads

    8c5a5d96-8997-464a-adeb-d46dfa5a1e88

    What do you mean by following type of welding? i. SMAW ii)TIG Answer: ii. SMAW = SHIELDED METAL ARC WELDING iii. TIG...

  10. #Threads

    d76c4ed5-14b1-4ca3-94c0-5038d9343e30

    While welding of pipe trunion to pipe/reinforcement pad you have to put a hole or leave some portion of welding why? Answer:...

  11. #Threads

    4fc95c9e-6605-48c5-b8ed-bd0bdd108ff3

    What is soluble dam? Answer: Soluble dam is a water-soluble material used for restricting the purging gas within the pipe.

  12. #Threads

    6591e2d7-da7c-4a8d-a07f-f9dc9d83cdc5

    What is the difference between machine bolt and stud bolt? Answer: Machine bolt has a head on one side and nut on...

  13. #Threads

    e41598c0-12be-4e25-8ddf-51ae015f4c3a

    Write down the outside diameter of following pipe? i. 3 inch ii) 6 inch iii) 10 inch iv) 14 inch Answer: i....

  14. #Threads

    1be8df74-900c-4384-b8f3-04c4e0efa4f7

    From which size onwards NB of pipe is equal to OD of Pipe? Ans: From the size 14” and onwards NB =...

  15. #Threads

    03912014-b0c8-4f91-a04e-c9d9dc700c4f

    What is the difference between Pipe and Tube? Ans: Pipe is identified by NB and thickness is defined by Schedule whereas Tube...

  16. #Threads

    14d0ef7c-8edc-48f4-8201-4babc1c0db54

    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...

  17. #Threads

    efa886b7-bda0-4939-9a72-b6da90a5ba4d

    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)...

  18. #Threads

    ed409dcf-d027-4219-beb5-096d2bffcc86

    What is the ASME code followed for design of piping systems in Process pipings (Refineries & Chemical Industries)? (i) B31.1 (ii) B31.3...