What is the difference between open-loop control and closed-loop control systems?
What will be an ideal response?
Open-loop control sends out signals and assumes they are followed. Closed-loop control gets some form of feedback that verifies the commanded action occurred.
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State whether actual (A) or estimated (E) costs are more likely to be used to carry out the following activities: calculate taxes, make bids, pay bonuses, determine profit or loss, predict sales, set prices, evaluate proposals, distribute resources, plan production, and set goals.
What will be an ideal response?
The cost of an electrode position control system in an electric arc furnace was $16,000 when the applicable equipment cost index had a value of 1192. If the current index value is 1364 and the exponent in the cost-capacity equation has a value of 0.65, the estimated cost now of a similar system twice as large is closest to: (choose one)
(a) $17,465 (b) $21,545 (c) $28,730 (d) $36,130
Technician A says that warm up cycles are used to erase DTCs and freeze frame data. Technician B says that OBD II requires the diagnostic system to monitor all emission-related components and systems. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
In the telephone business, the word conductor refers to:
A) a copper wire B) water C) a laser beam D) air E) any of the above