List the items that can affect a coil's dehumidification ability
What will be an ideal response?
Bypass factor – lower bypass factor produces more dehumidification Coil temperature – the colder the coil, the more dehumidification Longer run times – the longer the system operates, the greater the dehumidification
Counter air and refrigerant flow
Number of refrigerant circuits – the larger the number of paths refrigerant has through the coil, the higher the dehumidification
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What should be used to check an out-of-engine camshaft for bend?
A. inside micrometer B. outside micrometer C. dial bore gauge D. dial indicator and V-blocks
Every service shop should have someone responsible for customer satisfaction follow-up contacts because ________
A) Customers usually tell you when they are not happy with their repairs or their bill. B) You need to be sure that most of your customers are not satisfied. C) You have got to have some sort of job in the shop for the owner's son to do. D) Customers usually will not tell you if they are unhappy, they just go somewhere else and tell their friends.
Kirchhoff?s voltage law states that
A) the algebraic sum of the potential rises and drops around a closed loop is zero. B) the algebraic sum of the individual currents around a closed loop is zero. C) the voltages developed across each element in a series circuit are identical. D) the algebraic sum of the resistances is equal to the sum of the voltages.
Design a Butterworth bandpass filter with the following specifications:
Lower stopband cutoff frequency = f1 = 1225 Hz Lower passband cutoff frequency = f2 = 2425 Hz Upper passband cutoff frequency = f3 = 3025 Hz Upper stopband cutoff frequency = f4 = 4175 Hz Maximum attenuation in the passband (dB) = Ap = 1.07 dB Minimum attenuation in the stopband (dB) = As = 22.25 dB excess='stop' km = 1000 (a) Find ?1, ?2, ?3, ?4, ?s, and order n. (b) Find the recalculated values of Ap1, As1, ?, ?c. (c) Find the poles S and zeros SZ of the normalized lowpass filter before multiplication by ?c. (d) Find the transfer function of the frequency transformed bandpass filter and find Q values and ?0 values of the second-order sections. (e) Find the normalized component values for Deliyannis-Friend circuit. (f) Find the scaled component values for Deliyannis-Friend circuit.