Brass valves are usually made for pipe sizes ______________ inches?
Brass valves are usually made for pipe sizes ______________ inches?
A. ≤ 1
B. ≤ 2
C. > 2.5
D. > 3.5
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For a given fluid, as the pipe diameter increases, the pumping cost ____________________?
For a given fluid, as the pipe diameter increases, the pumg cost ____________________?A. Decreases
B. Increases
C. Remain unaffected
D. May increase or decrease depending upon whether the fluid is Newtonian or non-NewtonianIn a distillation column, bubble caps are located on trays with a pitch of ______________ times the outside diameter of the caps?
In a distillation column, bubble caps are located on trays with a pitch of ______________ times the outside diameter of the caps?A. 1.3 to 2
B. 1.6 to 2
C. 2.5
D. 1.5 to 3Nominal size of a pipe is an indication of its _______________ diameter?
Nominal size of a pipe is an indication of its _______________ diameter?A. Inner
B. Outer
C. Approximate
D. None of theseThe design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the _______________ stress?
The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the _______________ stress?A. Working
B. Damaging
C. Allowable
D. None of thesePoisson’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 ____________________?
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. 0.95The operating velocity in the absorption tower is usually 40-50% of the flooding velocity. Packed absorption towers are normally designed for a pressure drop of about _________________ mm of water column per metre height of packing?
The operating velocity in the absorption tower is usually 40-50% of the flooding velocity. Packed absorption towers are normally designed for a pressure drop of about _________________ mm of water column per metre height of packing?A. 1-5
B. 20-40
C. 100-150
D. 1000-1500