Residential Construction Academy: House Wiring (MindTap Course List)
4th Edition
ISBN: 9781285852225
Author: Gregory W Fletcher
Publisher: Cengage Learning
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Chapter 2, Problem 12RQ
To determine
The use of Type UF cable and which article coversType UF cable.
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What is the flow velocity of water in a 12" concrete sewer pipe (Manning's n = 0.013, and assume n is
variable with depth) at a slope of 2%, flowing partially full with a flow depth of 3"? Express your answer
in ft/s and round to the nearest 0.1.
Six samples of each of four types of cereal grain grown in a certain region were analyzed to determine thiamin content, resulting in the following data (μg/g).
Wheat 5.2 4.4 6.0 6.0 6.7 5.7
Barley 6.4 8.0 6.2 7.6
5.9 5.7
Maize
Oats
5.7 4.6 6.4 4.8
6.1 5.3
8.2 6.1 7.9 7.1 5.6 7.1
USE SALT
Does this data suggest that at least two of the grains differ with respect to true average thiamin content? Use a level α = 0.05 test.
State the appropriate hypotheses.
O Ho: H1 H2 H3 #44
H₁: all four μ's are equal
Ho M1 M2 M3 = μ4
H: all four μ's are unequal
Ho: M1 M2 M3 M4
Ha
: at least two us are equal
O Ho H1 H2 =μ3=4
Ha at least two μ's are unequal
Compute the test statistic value. (Round your answer to two decimal places.)
f =
What can be said about the P-value for the test?
P-value > 0.100
0.050 P-value < 0.100
0.010 < P-value < 0.050
0.001 < P-value < 0.010
P-value < 0.001
State the conclusion in the problem context.
◇ Reject Ho. There is significant evidence that at least two of the grains…
The Water Environment Federation (WEF) recommends that the linear flow-through velocity in a
wastewater clarifier should be less than to 0.020 m/s to prevent scour. Using ẞ = 0.06 for sticky particles
and a Darcy-Weisback friction factor of 0.03, estimate the specific gravity of a 200 μm diameter particle
that will be scoured at the recommended velocity. Express your answer in kg/m³ and round to the
nearest integer.
Chapter 2 Solutions
Residential Construction Academy: House Wiring (MindTap Course List)
Ch. 2 - Name the size of machine screw that is used to...Ch. 2 - Prob. 2RQCh. 2 - Directions: Answer the following items with clear...Ch. 2 - Prob. 4RQCh. 2 - Prob. 5RQCh. 2 - Describe when an electrician would use a new work...Ch. 2 - Prob. 7RQCh. 2 - Name and describe three cable types that can be...Ch. 2 - Prob. 9RQCh. 2 - Name the system that is used to size the...
Ch. 2 - Prob. 11RQCh. 2 - Prob. 12RQCh. 2 - Prob. 13RQCh. 2 - Describe how an electrician can tell Type AC and...Ch. 2 - Prob. 15RQCh. 2 - Prob. 16RQCh. 2 - Prob. 17RQCh. 2 - Prob. 18RQCh. 2 - Describe when three-way switches would be used in...Ch. 2 - Prob. 20RQCh. 2 - Prob. 21RQCh. 2 - Prob. 22RQCh. 2 - Prob. 23RQCh. 2 - Prob. 24RQCh. 2 - Prob. 25RQ
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- The following data was reported on total Fe for four types of iron formation (1 = carbonate, 2 = 1: 21.0 28.1 27.8 27.0 28.5 25.2 25.3 27.1 20.5 31.1 2: 26.2 24.0 26.2 20.2 24.3 34.0 17.1 26.8 23.7 25.3 3: 30.3 34.0 27.5 29.4 28.2 26.2 29.9 29.5 30.0 36.5 4: 37.2 44.2 34.1 30.3 31.8 33.1 34.1 32.9 36.3 25.8 silicate, 3 = magnetite, 4 = USE SALT Carry out an analysis of variance F test at significance level 0.01. State the appropriate hypotheses. O Ho H₁ =μ₂ = 3 = μ4 H: at least two μ's are unequal # O Ho: H1 H2 H3 H4 Ha: at least two μ's are equal # # O Ho: H1 H2 H3 H4 Ha all four μ's are equal O Ho H1 H2 H3 = 4 H: all four μ's are unequal Summarize the results in an ANOVA table. (Round your answers two decimal places.) Sum of Mean Source df Squares Squares f Treatments Error Total Give the test statistic. (Round your answer to two decimal places.) f = What can be said about the P-value for the test? OP-value>0.100 0.050 < P-value < 0.100 0.010 < P-value < 0.050 0.001 < P-value < 0.010…arrow_forwardA What is the flowing full capacity (flow rate) of a 12" concrete sewer pipe (Manning's n = 0.013) at a slope of 2%? Express your answer in gpm and round to the nearest integer.arrow_forwardIf the log10 reduction requirements were 4.0-log 10 for viruses and 3.0-log 10 for Giardia (no additional reduction requirements for Cryptosporidium) for a disinfection system using chlorine dioxide at 15°C and pH 6.5 in a chlorine contact chamber with a T10 value of 10 min (based on a tracer test) what is the required effluent residual concentration of chlorine dioxide? 1.9 mg/L 5.9 mg/L 1.67 mg/L 0.4 mg/Larrow_forward
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