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For the 4-bit D/A converter of Figure 6.2.9, calculate:
(a) The maximum analog output voltage.
(b) The minimum analog output voltage.
(c) The smallest detectable analog output voltage when Vref = -10 V.
describe the principles of a vapour adsorption refrigeration system and compare this to a vapour recompression system.
An elementary second order adiabatic reaction A+ B CD ? + is taking place in a CSTR. The feed to the reactor is equimolar A and B at concentrations of 2.4 mol/liter. The entering temperature is 300 K.
The reaction A + B ? R is a zero order with respect to both A and B. Compute the values for CA and CB at t = 15 seconds if the specific rate of reaction is 0.01 mole/L-s and initial concentration of A and B are both 0.2 moles/L.
Adsorption and Membrane Processes
For the segment Y3 to be turned on, develop the logic expression and find one possible logic circuit to realize the output in each case.
Discuss its states of operation.
Describe the advantages and disadvantages of using taxes and bounties to regulate negative externalities.
Find the efficiency of the transformer when it is delivering 7.5 kVA at 230 V and 0.85 power factor lagging.
Find the rotor copper loss at full load and the speed at maximum torque. Compute the value of the per-phase rotor resistance (referred to the stator) that must be added in series to produce a starting torque equal to the maximum torque.
Determine the number of barrels of mud gained due to pumping the slug and determine the feet of dry pipe. Mud weight = 12.6 ppg.Slug weight = 14.2 ppg.
Acetone is to be extracted from a solution in water, using 1,1,2-trichloroethane. The feed concentration is 45.0% w/w acetone. Determine the number of stages required to reduce the concentration of acetone to below 10%, using 32 kg of extraction-s..
Describe the major technical areas involved in engineering a new biomaterial such as a contact lens. Are there differences with other biomaterial based products?
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