Read the voltmeter in the accompanying figure to the nearest tenth of a volt. The switch is set to 24.
A. 27.3
B. 27.6
C. 27.9
D. 28.2
Answer: B
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System grounding relates to the _____.
a. EGCs b. systems over 250 volts c. service-entrance equipment d. rod and pipe electrodes
The term ____________________ refers to the number of sick animals
Fill in the blank(s) with correct word
Steel cable barriers in highway medians are a low-cost way to improve traffic safety without overstressing department of transportation budgets. Cable barriers cost $44,000 per mile, compared with $72,000 per mile for guardrail and $419,000 per mile for concrete barriers. Furthermore, cable barriers tend to snag tractor-trailer rigs, keeping them from ricocheting back into same-direction traffic. The state of Ohio spent $4.97 million installing 113 miles of cable barriers. Answer the following using both tabulated factors and a spreadsheet function.
(a) If the cable barriers prevent accidents totaling $1.3 million per year, what rate of return does this represent over a 10-year study period? (b) What is the rate of return for 113 miles of guardrail if accident prevention is $1.1 million per year over a 10-year study period?
All of the following are parts of a balustrade except _____
a. a baluster b. a newel post c. nosing d. a handrail