What are positive consequences?
What causes radial thrust in a centrifugal pump?
When a centrifugal pump operates at its best efficiency point (BEP), the flow angles match with the impeller vane angles. At the BEP, the flow velocity in the volute is uniform around the volute (i.e., there is not acceleration of the fluid in the volute). Therefore, the pressure around the volute is uniform. The uniform pressure around the circumference results in a net zero radial force on the impeller (or the shaft). Note this is theoretical. In practice even at BEP, there is a small radial load because the pressure is not uniform.
If the pump is operated away from the BEP, the flow velocities in the volute are non-uniform which results in a non-uniform pressure field and a net radial load (can be obtained by integrating the pressure around the circumference of the volute or the impeller).
What is the principle of the operation of UltraSonic sensor?
The principle of operation of any known sonic sensor (the human ear, for example) is detection of air vibration by measurement of its sensitive membrane oscillation frequency.
Is mild steel a rare metal or is it easily found?
some people consider it easy because they are miners, but otherwise it usually is rare
Design of earthing mesh in substation?
The mesh size in the earthing design for substation can be various size depend on the area. For area that does not contain equipment, we could increase the mesh size because there is no equipment to cause touch potential. But if the area is at the corner of the substation, the mesh size should be smaller because to limit the step potential.
Power required to drive a centrifugal pump is directly proportional to?
Cube of diameter of its impeller
Are Lanthanide and actinide elements are transition metals?
Yes, lanthanide and Actinides are transition elements and they are specifically called inner transition elements.
What is the geometry of cutting forces in waterjet cutting?
send me an e-mail to symvoulosllc[at]gmail.com and i will send you my entire PDF library. about waterjet cutting best RG
Type your answer here... Chemical engineering divided in to unit operations and unit processes. Unit operations involve those, where no chemical reaction ocurring.
eg: filteration, evaporation, distillation
In unit processes, chemical reactions involved.
eg: chemical reactions and synthesis.
What is the number 40 stand for in 4140 steel?
The first two digits indicates a Chromium-Molybdenum alloy steel the last two digits indicates carbon content roughly 0.4 percent.
Who is the designer of the Jefferson Memorial?
The Thomas Jefferson Memorial was designed by an architect named John Russell Pope. He was with the architectural firm of Eggers and Higgins.
What is the principle of operation of explosive detector?
They usually respond to airborne volatile chemicals, which are typical around explosives.
What is a major advantage of the steam engine over water power?
Steam engines do not need to be built next to rivers or streams.
From $70 to 110 per linear yard, depending on material.
ref. http://www.avianautica.com/prepreg-materials.html
What were Egyptian boats made of?
The most common type of Egyptian boats were made out of papyrus reeds. These type of boats were used to travel short distances. The reeds were bound toghether by ropes and were usually used for hunting fish. They were eather poled or paddled. Other boats were mad out of cedar wood imported from Lebanon.
One description for mcc is motor control center. It is an electrical panel or cubicle which houses the one electrical incoming feeder several outgoing power feeders.