Of the pressure vessels, with same thickness but different diameters, which one withstands higher pressure ?

Related Mcqs:

1. Large process vessels operating under extreme temperature and pressure conditions are normally clad/ lined with materials like stainless steel, aluminium, nickel & its alloys, copper & its alloys and titanium. The cladding thickness is generally about ______________ percent of the total thickness?

   A. 1 to 5
   B. 10 to 20
   C. 30 to 40
   D. 40 to 50

2. The testing pressure of storage tanks and pressure vessels designed as per Indian standard codes should be about ______________ times the design pressure?

   A. 1.5 to 2
   B. 3 to 4
   C. 4 to 5
   D. > 5

3. Normally, the plate thickness of the bottoms and roofs of vertically cylindrical storage vessels as compared to that of the cylindrical shell is____________?

   A. More
   B. Less
   C. Same
   D. More or less depending upon the pressure & temperature inside the vessel and the nature of
   the fluid contained therein

4. A cylindrical pressure vessel of volume 6 πm3 has to be designed to withstand a maximum internal pressure of 10 atm. The allowable design stress of the material is 125N/mm2 and corrosion allowance is 2 mm. The thickness of the vessel for a length/diameter ratio of 3 will be close to________________?

   A. 5 mm
   B. 6 mm
   C. 8 mm
   D. 10 mm

5. For a cylindrical shell, (subject to the thickness of uppermost course being more than the minimum for dia of the tank in question), the thickness of the courses of shell_________________?

   A. Decreases upwards
   B. Increases upwards
   C. Remains same throughout
   D. May decrease or increase upwards depending upon whether vacuum or positive pressure
   would be maintained inside the shell

6. The thickness of segmental baffles (25 -35% cut truncated plates usually) is generally _____________ the tube wall thickness?

   A. Equal to
   B. Twice
   C. Four times
   D. Half

7. Generally, no corrosion allowance in wall thickness of a part is required, if the thickness is more than ______________ mm?

   A. 10
   B. 20
   C. 30
   D. 5

8. ____________ head is the most economical for cylindrical vessels designed for operating at high pressure (> 15 atm.)?

   A. Hemispherical
   B. Dished
   C. Ellipsoidal
   D. Conical

9. For high pressure process equipments/vessels, the connected nozzle should be____________________?

   A. Welded
   B. Screwed
   C. Flanged
   D. Brazed

10. Cylindrical pressure vessels in horizontal condition is generally supported on a ________________ support?

    A. Lug
    B. Skirt
    C. Saddle
    D. Guy wire