Conventional current flow theory states that current flows from the most positive point to the most _______________.
Fill in the blank(s) with the appropriate word(s).
negative
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What is the resistance of a light bulb that uses 15 watts of power when placed across a 15- volt battery?
a. 1.5 ohms b. 15 ohms c. 50 ohms d. 150 ohms
Due to several illnesses among its work force, a contractor was short several workers for concrete placing and requested the assistance of the resident project representative. To what extent may the resident project representative be permitted to help?
A. As long as he or she provides only supervisory assistance; no physical labor, and is not compensated. B. He or she may give minor assistance including labor, if it does not interfere with his or her other duties. C. He or she cannot assist during normal working hours. However, if the concrete placing is after hours and he or she is on his or her own time, he or she may help if he or she is not paid. D. He or she may assist by calling the union hiring hall for additional help. E. None of these are true.
Pulse code modulation ________
A) has less accuracy the faster data is sampled B) is used for digital audio, Blu-Ray, CD, and DVD formats C) has few practical applications D) is used to convert digital values into analog signals
Answer the following statements true (T) or false (F)
1) Ergonomics is a multidisciplinary science that seeks to conform the worker to the workplace. 2) The word ergonomics is derived from the Greek language. Ergon means work and nomos means laws. 3) Human factors is a science that acts as a bridge between research about human beings and designing products for human beings. 4) Environmental factors generally have no effect on the stress levels of workers. 5) Sitting and standing are two factors which can affect the stress levels of workers.