_______________ shaped roof is most commonly used for cylindrical tanks ?
_______________ shaped roof is most commonly used for cylindrical tanks ?
A. Cone
B. Dome
C. Umbrella
D. Flat
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For a cylindrical vessel of moderate height, the weld joint efficiency for joints parallel to the cylindrical axis is given as 1.0; while for joints along the girth (circumference) it is given as 0.8. In calculating the shell wall thickness using code formula for an internally pressurised cylindrical vessel, what value of weld joint efficiency should be used ?
For a cylindrical vessel of moderate height, the weld joint efficiency for joints parallel to the cylindrical axis is given as 1.0; while for joints along the girth (circumference) it is given as 0.8. In calculating the shell wall thickness using code formula for an internally pressurised cylindrical vessel, what value of weld joint efficiency should be used ?A. 0.8
B. 0.9
C. 1.0
D. (0.8)0.5____________ is the determining factor for the number of bubble caps to be used per tray?
____________ is the determining factor for the number of bubble caps to be used per tray?A. Permissible slot velocity
B. Tray diameter
C. Liquid load
D. Vapor loadA binary liquid Azeotropic mixture has boiling point lower than either of the components, when it shows _____________ deviation from Raoult’s Law?
A binary liquid Azeotropic mixture has boiling point lower than either of the components, when it shows _____________ deviation from Raoult’s Law?A. Positive
B. Negative
C. No
D. None of theseFriction factor for turbulent flow in a new pipe is given by____________________?
Friction factor for turbulent flow in a new pipe is given by____________________?A. f = 16/NRe
B. f = 0.04/(NRe)0.16
C. f = 0.22 NRe
0.5
D. f = 25/NReIn case of a ‘thin’ pressure vessel, the ratio of its diameter to wall thickness is_________________?
In case of a ‘thin’ pressure vessel, the ratio of its diameter to wall thickness is_________________?A. < 10
B. > 10
C. > 20
D. 30In a shell and tube heat exchanger having triangular pitch, the shell side equivalent diameter is given by________________?
In a shell and tube heat exchanger having triangular pitch, the shell side equivalent diameter is given by________________?A. 4(0.86P2 – πd2/4)/πd
B. (P2 – πd2/4)/πd
C. 4(0.86P2 – πd2)/πd
D. (4P2 + πd2/4)/πd