The maximum size dual-element fuse for a 40hp, 3Ø, 460V motor with a Design Letter D is _____.

a. 60A
b. 100A
c. 125A
d. 175A


b. 100A
52A x 1.75 = 91A
Next standard size is 100A

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(This is a restatement of Problem 2.36.) Apple Computer wants to have $2.1 billion available 5 years from now in order to finance initial production of a device that applies IOT technology for home use. The company expects to set aside uniformly increasing amounts of money each year to meet its goal, starting with $100 million at the end of year 1. How much will the constant increase, G, have to be each year at a rate of return of 18% per year? Try your skill by using the Goal Seek tool to find the required gradient. Start the evaluation with G = $50 million per year.

What will be an ideal response?

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The subsequent problems deal with the circuit below where all voltage sources are dc and the circuit is assumed to be in steady state. Also, R1 = R2 = R3 = R4 = R.The voltage across the capacitor is

A. V1 B. 0 C. V2 ? V3 D. V2 + V3 E. V1 + V2 ? V3

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Determine the reactions at supports A and E in Figure P9.48. Area of bar EC = 3 in. 2 , I AD = 400 in. 4 , and A AD = 8 in. 2 ; E = 30,000 kips/in. 2 .

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Which of the following refrigerant safety designations indicate the refrigerant is highly flammable?

A) A2 B) A1 C) B1 D) B3

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