Which of the following logic devices is specifically designed to produce clean, fast-changing output signals?
A) Schmitt-trigger B) J-K flip-flop C) NOR latch D) NAND latch
A
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Explain what needles are and how underpinning is done with the use of needles.
What will be an ideal response?
A marketing objectives statement would include all of the following except:
A. market share B. product design C. sales goals D. profitability
Safe methods of heating a refrigerant cylinder during charging include which of the following? (You may select more than one.)
A) An oxyacetylene torch with a rosebud tip B) Boiling water C) An electric cylinder heater D) Warm water E) An air acetylene torch adjusted to a low flame F) Warm condenser discharge air
A data acquisition system uses a DAC with a range of ?10 to +15 V and a resolution of 0.004 V. How many bits must be present in the DAC?
Known quantities: The range, -10 -15 V, and the resolution, 0.004 V, of a data acquisition system. Find: The number of bits of the DAC.