For which pressure vessel end closure are operating pressures above 15 bar most likely to prove the most economical choice?
Explanation
This question tests the understanding of the economic trade-offs between different types of pressure vessel heads based on the operating pressure.
Other questions
What is the classification for a pressure vessel with a wall thickness to vessel diameter ratio of less than 1 to 10?
Which division of the ASME BPV Code Section VIII is most commonly followed, particularly for low-pressure vessels?
Which theory of failure is normally used in pressure vessel design for predicting the failure of ductile materials under complex loading?
For vessels under internal pressure, the design pressure is typically taken as a certain percentage above the normal working pressure to avoid spurious operation of the relief device. What is this typical percentage range?
According to the ASME BPV Code basis for maximum allowable stress at temperatures where creep is not a factor, what is the safety factor applied to the specified minimum tensile strength at room temperature?
Under what condition is a welded joint efficiency of 1.0 permitted for a pressure vessel's construction?
What is the primary purpose of adding a corrosion allowance to the calculated thickness of a pressure vessel?
Which of the following loads is considered a subsidiary load, rather than a major load, in pressure vessel design?
Using the ASME BPV Code equation from Section 14.5.1 (t = Pi Di / (2SE - 1.2Pi)), calculate the minimum required thickness (t) for a cylindrical shell with an internal diameter (Di) of 1.5 m, an internal pressure (Pi) of 1.43 N per square mm, a maximum allowable stress (S) of 88.9 N per square mm, and a welded joint efficiency (E) of 1.0.
Which type of domed head is considered the strongest shape, capable of resisting about twice the pressure of a torispherical head of the same thickness?
For a standard 2:1 ellipsoidal head, what is the correct formula to calculate the minimum required thickness according to the simplified equation provided in the text?
What is the primary reason for including a short, straight cylindrical section, known as a flange or skirt, on formed domed heads?
What is the mode of failure that determines the required wall thickness for thin-walled vessels subject to external pressure?
In a tall, self-supported vertical vessel, what is the nature of the direct stress due to the weight of the vessel and its contents (dead-weight stress) for points above the vessel supports?
What is the approximate weight of a steel cylindrical vessel with a mean diameter of 2.014 m, a height between tangent lines of 50 m, and a uniform wall thickness of 14 mm, using the provided formula and a weight factor (Cw) of 1.15 for a vessel with plates?
What is the typical maximum allowable deflection specified for tall columns to prevent excessive swaying in the wind?
Which type of support is generally recommended for tall vertical vessels, particularly those subject to wind loading, because it does not impose concentrated loads on the shell?
What type of flange is described as having a long tapered hub that reduces discontinuity stresses and is suitable for extreme service conditions involving temperature, shear, and vibration loads?
What is the gasket factor 'm' used for in the design of flanged joints?
Which type of flange face is described as simple and inexpensive but only suitable for low pressures due to the large gasket area requiring excessively high bolt tension for a good seal?
What is the typical test pressure used for a standard hydraulic pressure test on a finished vessel?
What is the technique used to prestress the inner part of a monobloc vessel wall by deliberately overpressurizing it, creating a residual compressive stress similar to that in a shrink-fitted cylinder?
What is the typical maximum allowable stress at a temperature of 500 F for Carbon steel A285 Gr A plates, in ksi?
What is the maximum allowable joint efficiency for a single-welded butt joint with a backing strip that has undergone 'Spot' radiographic examination?
Which statement accurately describes secondary stresses, such as thermal stress, in a pressure vessel?
What is the ASME BPV Code Section VIII D.1 minimum practical wall thickness, not including corrosion allowance, specified to ensure a vessel is sufficiently rigid?
In the design of flat ends, the minimum thickness depends on a design constant 'C'. For a bolted cover with a full face gasket, what is the typical value for C?
For a conical section in a pressure vessel, what does the term 'alpha' represent in the design equations?
In a tall column design, what is the governing case for determining the plate thickness at the base of the column when the bending stress due to wind is greater than the direct stress due to pressure?
What phenomenon can induce severe vibrations in tall, thin columns if the frequency of shedding matches the natural frequency of the column?
For a skirt support on a vertical vessel, what is the recommended minimum thickness?
What is the minimum seating stress 'y' for a gasket made of vegetable fiber, given in N per square mm?
When making butt joints between plates of different thicknesses, what is the maximum slope at which the thicker plate must be reduced in thickness?
In a multilayer compound vessel, how are the layers typically constructed to achieve the desired stress distribution?
When is it generally accepted that a closed vessel should be designed as a pressure vessel?
What is the typical minimum corrosion allowance that should be used for carbon and low-alloy steels where severe corrosion is NOT expected?
In the context of designing for combined loads, which equation correctly represents the bending stress (sb) in a cylindrical vessel?
When checking for elastic stability in a tall column, the design must ensure that the maximum resultant axial stress does not exceed the critical buckling stress. According to the simplified formula for curved plates, what is the critical buckling stress (sc) for a steel vessel at ambient temperature with a safety factor of 12?
For a horizontal vessel supported on two saddles, what is the theoretical optimum position of the supports to achieve the least maximum bending moment?
Which of the following is NOT one of the basic requirements that a welded joint design should satisfy?
What type of stress is induced by the differential expansion of parts of a vessel due to different temperatures, and is it classified as a primary or secondary stress?
According to the provided text, what is the maximum temperature at which Stainless steel 18 Cr, 10 Ni, Cb (grade 347) plates can be used under ASME BPV Code Sec. VIII D.1 rules?
What is the primary method used to provide compensation for the weakening effect of an opening or branch in a pressure vessel shell?
Which type of agitator is specifically mentioned for use with viscous fluids?
What is the pressure rating of a class 300 standard carbon steel flange at a service temperature of 600 degrees F, in psig?
In what situation would a pneumatic pressure test be substituted for the normally preferred hydraulic test?
A cylindrical shell has an internal diameter of 1 meter and a wall thickness of 120 mm. How would this vessel be classified?
Which of the following items is specifically excluded from the scope of the BPV Code Section VIII D.1?
What is the primary factor that determines the cost of a pressure vessel in most preliminary cost correlations?