EBK RESIDENTIAL CONSTRUCTION ACADEMY: H
5th Edition
ISBN: 9781337672030
Author: FLETCHER
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Question
Chapter 18, Problem 1RQ
To determine
The section code of the NEC that covers the necessary locations for Ground fault circuit interrupters in residential applications.
Expert Solution & Answer
Explanation of Solution
NEC Section 210.8 deals with the locations needed for Ground fault circuit interrupters in residential applications. GFCI safety devices should be mounted in an immediately accessible location. GFCI security is necessary forthe residential electrical system in several regions outside and inside of the house.
GFCI receptacles are used to safeguard people from the dangers of electric shock. Ground fault circuit interrupter receptacles secure the places where they are mounted and may also secure standard duplex receptacles that are mounted farther along the circuit. A Ground fault circuit interrupter circuit breaker also protects ground-fault.
Conclusion:
NEC Section 210.8 with the locations needed for Ground Fault Circuit Interrupters in residential applications.
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Students have asked these similar questions
Please explain step by step and show formulas
5. (20 Points) Consider a channel width change in
the same 7-foot wide rectangular in Problem 4.
The horizontal channel narrows as depicted
below. The flow rate is 90 cfs, and the energy
loss (headloss) through the transition is 0.05
feet. The water depth at the entrance to the
transition is initially 4'.
1
b₁
TOTAL ENERGY LINE
V² 129
У1
I b₂
TOP VIEW
2
PROFILE VIEW
h₁ = 0.05
EGL
Y₂ = ?
a)
b)
c)
2
Determine the width, b₂ that will cause a
choke at location 2.
Determine the water depth at the
downstream end of the channel transition (y₂)
section if b₂ = 5 feet. Calculate the change in
water level after the transition.
Plot the specific energy diagram showing
all key points. Provide printout in homework.
d) What will occur if b₂ =
= 1.5 ft.?
4. (20 Points) A transition section has been
proposed to raise the bed level a height Dz in a
7-foot wide rectangular channel. The design
flow rate in the channel is 90 cfs, and the
energy loss (headloss) through the transition is
0.05 feet. The water depth at the entrance to
the transition section is initially 4 feet.
b₁ = b = b2
1
TOTAL ENERGY LINE
V² 129
Ут
TOP VIEW
2
hloss = 0.05
"
EGL
Y₂ = ?
PROFILE VIEW
a) Determine the minimum bed level rise, Dz,
which will choke the flow.
b) If the step height, Dz = 1 ft, determine the
water depth (y2) at the downstream end of the
channel transition section. Calculate the
amount the water level drops or rises over the
step.
c) Plot the specific energy diagram showing all
key points. Provide printout in Bework.
d) What will occur if Dz = 3.0 ft.?.
Crest
Front View
Chapter 18 Solutions
EBK RESIDENTIAL CONSTRUCTION ACADEMY: H
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