Approximately how many people in the United States die each year due to food-borne organisms?
a. 500 c. 5,000
b. 1,000 d. 25,000
C
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Relay contact faces are ____.
a. straight b. triangular c. angular d. domed
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Cables are protective devices designed to melt when the flow of current becomes too high for the wiring or loads in the circuit.
Answer the following statement true (T) or false (F)
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VRF systems use a refrigeration network of:
A) Headers and branch joints. B) Wyes and tees. C) Both aA and B. D) None of the above.
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Technician A says that the only valve guide repair option for integral valve guides is to use oversize-stem valves. Technician B says that valve guides should be checked for wear using a ball gauge or a dial indicator. Which technician is correct?
A) Technician A B) Technician B C) Both technicians D) Neither technician
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