Where should the draft regulator be installed in the chimney connector?
A) Close to the furnace in series with the connector so that the vent gasses must pass through it
B) Close to the furnace on the bull head of a tee which is in-line with the connector
C) On the outlet of the chimney so that the vent gasses must pass through it
D) Close to the furnace on the branch of a tee which is in-line with the connector
D
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Review drawing number 523690C0A and then answer the question.
In most cases, commercially canned foods are more expensive than home canning
Indicate whether the statement is true or false
Whenever the forward-biased SCR in a phase controller is triggered
A) the anode-to-cathode voltage equals the applied voltage B) power is applied to the load C) power to the load is switched off D) the ac waveform switches phase
Find the current necessary to establish a flux of ? = 3 × 10?4 Wb in the series magnetic circuit of Figure P18.12. Here liron = lsteel = 0.3 m, area (throughout) = 5 × 10?4 m2, and N = 100 turns. Assume ?r = 5,195 for cast iron and ?r = 1,000 for cast steel.
