The difference between an SCR and a diode is that an SCR _____.
a. has three terminals
b. is bidirectional
c. has a drain connected to the negative terminal
d. is normally open
a. has three terminals
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For closed transition starting, four separate start contactors are used.
Answer the following statement true (T) or false (F)
Lego Group in Bellund, Denmark manufactures Lego toy construction blocks. The company is considering two methods for producing special-purpose Lego parts. Method 1 will have an initial cost of $400,000, an annual operating cost of $140,000, and a life of 3 years. Method 2 will have an initial cost of $600,000, an operating cost of $100,000 per year, and a 6-year life. Assume 10% salvage values for both methods. Lego uses an MARR of 15% per year. (a) Which method should it select on the basis of a present worth analysis? (b) If the evaluation is incorrectly performed using the respective life estimates of 3 and 6 years, will Lego make a correct or incorrect economic decision? Explain your answer.
What will be an ideal response?
Datum features are selected based on their importance to the design of the part. Generally, three datum features are selected that are perpendicular to each other. What are the three datums are called?
What will be an ideal response?
Divide the following decimal fractions and round to two decimal places: 56 ÷ 0.28 =
What will be an ideal response?