From 60 Hz wave input, what is required for reliable clock signal?
A) MOD 6 counter, and then a Schmitt-Trigger B) Schmitt-Trigger, and then a MOD 2 counter
C) Schmitt-Trigger, and then a MOD 60 counter D) MOD 60 counter
C
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Oversized equipment operates:
A) More efficiently than correctly sized equipment. B) About the same efficiency, but also has reserve capacity. C) At the same efficiency as correctly sized equipment. D) Less efficiently than correctly sized equipment.
The most common tool for heating a bearing for removal is a(n) _____
a. torch b. hot plate c. heating ring d. oven
Large rooftop package AC units often use ________ sensors to help draw in fresh air to meet code requirements and to cool if temperature and humidity permit
A) Enthalpy B) Low pressure C) Economizer D) Airflow
The sensor that is MOST-Likely used on some antilock systems to measure "yaw" forces encountered while turning is the:
A. wheel speed sensor B. traction control sensor C. brake sensor D. lateral acceleration sensor