A. Rupture diaphragm
B. Dikes
C. Surge chamber
D. None of these
Related Mcqs:
- 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 - Movement of pipeline caused by thermal expansion is taken care by providing ___________________?
A. Expansion joint
B. Changes in its direction
C. Change in the shape of pipeline
D. All A., B. and C. - The safe distance of habitation from a hazardous chemical plant (TLV of its product < 1000 ppm) should be about ______________ kms?
A. 1
B. 5
C. 15
D. 25 - Liquid/petroleum fuel storage tanks are built underground (as in case of petrol pumps), when the storage capacity is less than ______________ kilolitres?
A. 20
B. 30
C. 45
D. 85 - Cylindrical storage tanks used for the storage of volatile liquids (e.g., naphtha) have ______________ roofs?
A. Conical
B. Flat
C. Floating
D. Fixed - In hydrostatic testing of welded pipe (for leakage, strength etc.) the ratio of minimum hydrostatic test pressure to internal design pressure is around __________________?
A. 0.5
B. 1.5
C. 2.5
D. 3.5 - Poisson’s ratio of a material is the ratio of unit lateral strain to the unit axial elongation within its elastic limit. The value of Poisson’s ratio for structural and pressure vessel steel may be taken as ____________________?
A. 0.01
B. 0.3
C. 0.75
D. 0.95 - Pick out the wrong statement pertaining to the use of valve tray, seive tray and bubble cap trays in continuous distillation column ?
A. Bubble cap trays though most expensive are the best in situations, where low vapour rates is to be handled and a positive liquid seal is essential at all flow rates
B. Murphree efficiency of all the three trays are nearly equal, however the peak efficiency is generally higher for sieve and valve trays than the bubble cap
C. Maintenance cost for valve and sieve trays are comparatively more than bubble cap tray due to their relatively complicated construction features
D. Valve trays have the highest turn down ratio (i.e. the ratio of the highest to the lowest vapour flow rates) and thus provide the maximum flexible operating range - The necessary wall thickness for a metallic storage vessel is a function of the ___________________?
A. Ultimate tensile strength (or yield point) of the material and operating temperature
B. Operating pressure and welding/joint efficiency
C. Diameter of the vessel
D. All A., B. and C. - 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
