
Concept explainers
a.
Mention the name of the branch circuit that is connected to the dishwasher.
a.

Answer to Problem 1R
The dishwasher is connected to
Explanation of Solution
Discussion:
A dishwasher is a machine used for automatic cleaning of dishware and cutlery. It consists of a motor, an electric heating element, and a small fan that is used to circulate hot air during the drying cycle.
A 120 volts, 20 ampere rated dishwasher is connected to B5 branch circuit that originates in Panelboard B.
Conclusion:
Thus, the dishwasher is connected to
b.
Mention the size of the wire utilized to connect the dishwasher.
b.

Answer to Problem 1R
The size of the wire utilized to connect the food waste disposer is
Explanation of Solution
Discussion:
A THHN type 12 AWG-sized copper conductors are used to connect the dishwasher to the branch circuit. Any one of the wiring methods among nonmetallic-sheathed cable, EMT, or Type MC cable will be used depending upon the requirement.
Conclusion:
Thus, the size of the wire utilized to connect the dishwasher is
c.
Explain whether the branch circuit of dishwasher is required to be provided with AFCI protection or not.
c.

Answer to Problem 1R
Yes, the branch circuit of dishwasher is required to be provided with AFCI protection.
Explanation of Solution
Discussion:
As defined in NEC 210.8(D), AFCI protection is required to be provide for the branch circuit of dishwasher.
Conclusion:
Yes, the branch circuit of dishwasher is required to be provide with AFCI protection.
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Chapter 21 Solutions
ELECTRICAL WIRING:RESIDENTAL-6 PLANS
- 4. Consider a unity (negative) feedback control system whose open-loop transfer function is given by the following. 2 G(s) = s³ (s + 2) Find the steady-state error of the system for each of the following inputs. = a) u(t) (t²+8t+5) 1(t) b) u(t) = 3t³ 1(t) c) u(t) (t+5t² - 1) 1(t) =arrow_forward1 2. For the following closed-loop system, G(s) = and H(s) = ½ (s+4)(s+6) a. Please draw the root locus by hand and mark the root locus with arrows. Calculate the origin and angle for asymptotes. b. Use Matlab to draw the root locus to verify your sketch. Input R(s) Output C(s) KG(s) H(s)arrow_forward5. Consider following feedback system. R(s) + 100 S+4 +1 Find the steady-state error for (i) step input and (ii) ramp input.arrow_forward
- 6. Find (i) settling time (Ts), (ii) rise time (Tr), (iii) peak time (Tp), and (iv) percent overshoot (% OS) for each of the following systems whose transfer functions are given by: a) H(s) = 5 s²+12s+20 5 b) H(s) = s²+6s+25 c) H(s) = (s+2) (s²+12s+20) (s²+4s+13) Use dominant pole approximation if needed.arrow_forward7. Answer the following questions. Take help from ChatGPT to answer these questions (if you need). But write the answers briefly using your own words with no more than two sentences and make sure you check whether ChatGPT is giving you the appropriate answers in the context of class. a) Why do we need transient performance metrics? Name a few of such metrics. b) Define (i) settling time, (ii) rise time, (iii) peak time and (iv) percent overshoot. c) What is damping ratio? How does overshoot change with the change of damping ratio? When do we have zero overshoot? d) What is the criterion for selecting dominant pole in higher order systems? When dominant pole approximation is not valid? How will you calculate the transient performance metrics for the case when dominant pole approximation does not hold?arrow_forwardThe transformer rating is 1200:2400 V @ 120 kVA. What is the apparent power provided by the source? What does this mean for the operation of the transformer? Draw the power triangle at the source and calculate the power factor. The magnitude of the voltage source is given in VRMS.arrow_forward
- Don't use ai to answer i will report your answerarrow_forwarda) Find the Real and Imaginary Voltage across the inductor to 3 decimal points. b) Find the current and phase angle (phasor) magnitude from the Vs source to 3 decimal points. c) Find the magnitude and phase angle of the complex power(phasor) delivered by the Vs source to 3 decimal points.arrow_forwardConsider the circuit diagram below. If four identical capacitors, each with a capacitance of 0.07 F, are used to smooth the output, what will the ripple voltage VR be? The diode forward bias voltage, VF, is found to be 0.5 V. Note that the amplitude of v(t) is given in VRMS.arrow_forward
- a) Find the complex power absorbed by the -j3 ohm capacitor to 3 decimal points.b) Find the complex power absorbed by the 4 ohm resistor to 3 decimal pointsc) Find the complex power absorbed by the j5 ohm inductor to 3 decimal points.arrow_forwardI am looking for schematic ideas or recommendations for designing the required step-down system. Since the input is a 600V DC supply, a DC-DC converter may be necessary, as transformers are typically used for AC voltage. Key considerations would include: Voltage regulation: Ensuring a stable and consistent 120V DC output.Component selection: Choosing appropriate DC-DC converter modules, capacitors for filtering, and protective components such as fuses or circuit breakers.Lighting system: Recommendations on energy-efficient lighting options like LEDs, which work well with DC power and offer durability for railway applications.Thermal management: Addressing heat dissipation within the converter and lighting circuit.Safety and standards: Complying with safety regulations for electrical systems in railways. I would greatly appreciate detailed insights into the design process, including key circuit components and configurations, as well as any schematic diagrams or references.arrow_forward1 2. For the following closed-loop system, G(s) = and H(s) = ½ (s+4)(s+6) a. Please draw the root locus by hand and mark the root locus with arrows. Calculate the origin and angle for asymptotes. b. Use Matlab to draw the root locus to verify your sketch. Input R(s) Output C(s) KG(s) H(s)arrow_forward
- EBK ELECTRICAL WIRING RESIDENTIALElectrical EngineeringISBN:9781337516549Author:SimmonsPublisher:CENGAGE LEARNING - CONSIGNMENT
