ELECTRICAL WIRING:RESIDENTAL-6 PLANS
18th Edition
ISBN: 9781305098329
Author: MULLIN
Publisher: CENGAGE L
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Chapter 30, Problem 11R
To determine
Mention the height where the luminaires must be mounted above the swimming pool.
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Given the circuit #1 presented above, answer the following questions:
Determine the value of the VD (voltage forward of the LED) for the LEDs RED, VDRED, GREEN, VDGREEN and BLUE, VDBLUE, when the current through the LEDs is 10mA,
VDRED = ____________ ; VDGREEN = ____________ ; VDBLUE = ____________
Is the LED in Circuit #1, connected in the way that will be lighting up or not – Justify your answer
Type your answer here
Calculate the value of the resistance Rled in Circuit #1, to ensure that a RED LED will have a current of 10 mA
Type your answer here or paste the image of your handwriting solution here
Calculate the value of the resistance Rled in Circuit #1, to ensure that a GREEN LED will have a current of 10 mA
Type your answer here or paste the image of your handwriting solution here
Calculate the value of the resistance Rled in Circuit #1, to ensure that…
8. Connect the Electronic VOM, set to the ammeter function on the 15mAdc range,between points A and D.9. Close switch S1. Measure current IAB.
IAB = 19.5 mAdc
10. Measure current IAD flowing through resistor R1.
IAD = 14.8 mAdcAre currents IAB and IAD entering or leaving point A? __________
Is the sum of currents IAB and IAD equal to total current IT? __________Is the current IAB entering or leaving a junction point B? __________
QUESTION 3
We are running 3 wires and a ground in a RMC to a control panel with a 60 amp circuit breaker disconnect in the control panel. The conduit is run along the ceiling where the ambient air temperature is 100 degrees. The control panel feeds our secondary cooling pump. What size are the ungrounded conductors? All conductors have typeTHHN insulation.
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ELECTRICAL WIRING:RESIDENTAL-6 PLANS
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- The recessed fluorescent luminaires installed in the ceiling of the recreation room of this residence are connected with trade size flexible metal conduit. These flexible connections are commonly referred to as fixture whips. Does the flexible metal conduit provide adequate grounding for the luminaires, or must a separate equipment grounding conductor be installed? ________________arrow_forwardQUESTION 5 A duplex receptacle is installed on a 4-inch square raised metal cover and mounted on a 4-inch square metal box.If the grounding terminal of the receptacle is connected to the grounded metal box, which of the following requirements would also apply to the installation of the duplex receptacle? a It must be secured by at least two screws. b The single 6/32 screw holding it in the cover must be tight. c It must be secured directly to the 4 inch square box. d It is not permitted to be installed in raised covers.arrow_forwarda. The Code requires a minimum of two small-appliance circuits in a kitchen. Is it permitted to connect a receptacle in a dining room to one of the kitchen small-appliance circuits? _______________ What Code section applies to this situation? _______________ b. Are outdoor weatherproof receptacles permitted to be connected to a 20-ampere small-appliance circuit? _______________ c. Receptacles located above the countertops in the kitchen must be supplied by at least _______________ 20-ampere small-appliance circuits.arrow_forward
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