Liquid/petroleum fuel storage tanks are built underground (as in case of petrol pumps), when the storage capacity is less than ______________ kilolitres?

Related Mcqs:

1. The safe height (h) to diameter D. ratio (i.e., h/d) for liquid/petro fuel storage tank of capacity more than 45 kilolitres is less than _________________?

   A. 1
   B. 2
   C. 3
   D. 3.5

2. For storing hazardous chemicals in large storage tanks, the minimum safe distance between the two tanks should range between ______________________ times the tank diameter?

   A. 1 to 1.5
   B. 2.5 to 3.5
   C. 4 to 5
   D. 6 to 8

3. Cylindrical storage tanks used for the storage of volatile liquids (e.g., naphtha) have ______________ roofs?

   A. Conical
   B. Flat
   C. Floating
   D. Fixed

4. 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

5. _____________ shaped roof is the most commonly used roof for cylindrical storage tanks?

   A. Conical
   B. Flat
   C. Dome
   D. Umbrella

6. Most of the storage vessels/tanks are made cylindrical, because of the fact that a cylinder _________________?

   A. Has greater structural strength
   B. Is easy to fabricate
   C. Both A. and B.
   D. Neither A. nor B.

7. Hoop (circumferential) stress induced in a thin walled ‘Horton Sphere’ used for the storage of liquid ammonia under pressure is____________________?

   A. pD/2T
   B. pD/4T
   C. pD/3T
   D. pD/6T

8. Pick out the wrong statement pertaining to ‘Horton sphere’ used for the storage of liquid ammonia ?

   A. Diameter of Horton sphere is normally 6 to 25 metres and it is supported by 6 to 12 nos. tubular or rolled section column
   B. Thickness of spherical shell is half that of the cylindrical vessel under same operating pressure condition. Besides, the ratio of surface area to volume is less for sphere than any other shape; hence insulation required is less
   C. Horton sphere is used for the storage of gases and volatile liquid at a moderate pressure of 1 to 10 kg/cm2
   D. Horton sphere is used for the storage of liquid at sub-zero temperature at very high pressure upto 200 kg/cm2

9. For identical situation, condensing film coefficient in case of a horizontal condenser is almost ______________ the value expected in case of vertical condenser?

   A. Half
   B. Twice
   C. Thrice
   D. Five times

10. _______________ shaped roof is most commonly used for cylindrical tanks ?

    A. Cone
    B. Dome
    C. Umbrella
    D. Flat