Category: Engineering

What is hydraulic boundary layer? The fluid velocity varies from zero at the solid surface to the velocity of free stream flow at a certain distance away from the solid surface. This thin layer of changing velocity has been called the hydrodynamic boundary layer; a concept first suggested by Ludwig Prandtl in the year 1904. […]

How do you calculate resin ion exchange volume? We now have to multiply this by 7.48 gal/cu ft to equate the number to a cubic foot of resin: 2,923.98 x 7.48 = 21,871. So 1 meq/mL is equal to 21.87 Kgr/cu ft. A new resin with 2.0 meq/mL has a total capacity of 43.74 Kgr/cu […]

What is ug L in ppb? one microgram per liter How do you convert micrograms per liter to PPM? ENDMEMO 1 ug/L = 0.001 ppm. 2 ug/L = 0.002 ppm. 3 ug/L = 0.003 ppm. 4 ug/L = 0.004 ppm. 5 ug/L = 0.005 ppm. 6 ug/L = 0.006 ppm. 7 ug/L = 0.007 ppm. […]

How do you calculate rpm thrust? Given a rotational speed of 10,000 rpm, the calculation goes as follows: Power=0.015X103.2=24 W. The next step is to determine the thrust produced by a propeller. Equation 2 gives thrust based on the Momentum Theory. How do you calculate propeller RPM? ​The best way to determine the RPM of […]

Does temperature change during adiabatic process? An adiabatic process has a change in temperature but no heat flow. The isothermal process has no change in temperature but has heat flow. Why does temperature drop in adiabatic process? An adiabatic process is one that occurs without transfer of heat or matter between a thermodynamic system and […]

What is line voltage in 3 phase? Line voltage refers to the amount of voltage measured between any two line conductors in a balanced three-phase system. Phase voltage refers to the voltage measured across any one component (source winding or load impedance) in a balanced three-phase source or load. What is line to neutral voltage […]

How do you calculate voltage when given resistance? Ohms Law and Power To find the Voltage, ( V ) [ V = I x R ] V (volts) = I (amps) x R (Ω) To find the Current, ( I ) [ I = V ÷ R ] I (amps) = V (volts) ÷ R […]

How long does flex seal tape last? 24 months How well does flex seal tape work? Flex Tape is really a good product for anyone who likes doing DIY and home improvement projects. It takes the place of the ordinary tape that you might use for temporary repairs and the thick glues and adhesives that […]

What are the two types of outline? The two main types of outlines are the topic outline and the sentence outline. In the topic outline, the headings are given in single words or brief phrases. In the sentence outline, all the headings are expressed in complete sentences. What is an outline? An outline is a […]

How do you measure the overall length of a boat? Length overall is measured from the tip of the bow in a straight line to the stern of the vessel. Bowsprits; rudders; outboard motors and motor brackets; handles; and other fittings, attachments, and extensions are not included in the measurement. How do you measure the […]