When a transistor is to be used as an amplifier, it must be ____.
a. biased
b. filtered
c. inverted
d. diverted
a. biased
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Indicate whether the statement is true or false
Polymer Molding, Inc. is considering two processes for manufacturing storm drains. Plan A involves conventional injection molding that will require making a steel mold at a cost of $2 million. The cost for inspecting, maintaining, and cleaning the molds is expected to be $60,000 per year. Since the cost of materials for this plan is expected to be the same as for the other plan, this cost is not included in the comparison. The salvage value for plan A is expected to be 10% of the first cost. Plan B involves using an innovative process known as virtual engineered composites wherein a floating mold uses an operating system that constantly adjusts the water pressure around the mold and the chemicals entering the process. The first cost to tool the floating mold is only $795,000, but because
of the newness of the process, personnel and product-reject costs are expected to be higher than for a conventional process. The company expects the operating costs to be $85,000 for the first year and then decrease to $46,000 per year thereafter. There will be no salvage value with this plan. At an interest rate of 12% per year, which process should the company select on the basis of an annual worth analysis over a 3-year study period? What will be an ideal response?
Los componentes que se usan en los sistemas de mantenimiento de temperatura del agua caliente son similares a los que se usan en:
a. los sistemas de descongelación para tubos de bajada de agua, canaletas y techos. b. los sistemas de mantenimiento del calor en tuberías. c. sistemas de deshielo y descongelación. d. sistemas de calefacción de pisos.
How does a fire extinguisher work, and how should it be used?
What will be an ideal response?