Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Chapter 16, Problem 19R
What concerns are there when installing a low-voltage lighting system?
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Q1/ Route the following flood hydrograph through a river reach for which storage
duration constant = 10 hr and weighted factor = 0.25. At the start of the inflow
flood, the outflow discharge is 60m³/s.
Inflow (m/s)
Time (hr)
140
60 100
0
4
8
12 16
120 80 40
20
Q2/ Answer the following:
1. Define water requirements and list the losses of irrigation.
Q3/ Irrigation project with the following data:
=
150 mm/m Root Zone Depth (RZD) = 1.1 m
15% of the net depth
- Available Water
PAD = 50%, Leaching Requirement
Rainfall = 12 mm,
=
water Losses = 10% of the net depth. If the net water depth
added after depletion of already available water, Calculate: gross irrigation water,
and application efficiency. C=
C
A3 m long cantilever ABC is built-in at A, partially supported at B, 2 m from A,
with a force of 10 kN and carries a vertical load of 20 kN at C. A uniformly distributed
bad of 5 kN/m is also applied between A and B. Determine
(a) the values of the vertical reaction and built-in moment at A and
(b) the deflection of the free end C of the cantilever,
Develop an expression for the slope of the beam at any position and hence plot a slope diagram.
E = 208GN / (m ^ 2) and 1 = 24 * 10 ^ - 6 * m ^ 4
7. Consider the following feedback system with a proportional controller.
K
G(s)
The plant transfer function is given by
G(s) =
10
(s + 2)(s + 10)
You want the system to have a damping ratio of 0.3 for unit step response. What is the
value of K you need to choose to achieve the desired damping ratio? For that value of
K, find the steady-state error for ramp input and settling time for step input.
Hint: Sketch the root locus and find the point in the root locus that intersects with z =
0.3 line.
Chapter 16 Solutions
Electrical Wiring Residential
Ch. 16 - Prob. 1RCh. 16 - What are the circuit ratings? __________________Ch. 16 - Prob. 3RCh. 16 - Prob. 4RCh. 16 - Prob. 5RCh. 16 - a. How many lights are recommended for a one-car...Ch. 16 - From how many points in the garage of this...Ch. 16 - GFCI breakers or GFCI receptacles are relatively...Ch. 16 - The total estimated volt-ampere load of the garage...Ch. 16 - Prob. 10R
Ch. 16 - Prob. 11RCh. 16 - Prob. 12RCh. 16 - In the spaces provided, fill in the cover (depth)...Ch. 16 - What section of the Code prohibits embedding Type...Ch. 16 - Using the suggested cable layout of the garage...Ch. 16 - When a box-cover unit is installed for an overhead...Ch. 16 - When outdoor receptacles are installed where a...Ch. 16 - In order to wire a post light, a homeowner...Ch. 16 - What concerns are there when installing a...
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