A cooling tower with its fan located in the air stream leaving the tower, drawing the air through the tower, is:
A) A forced-draft cooling tower. B) An induced-draft cooling tower.
C) A hybrid-draft cooling tower. D) A natural-draft cooling tower.
B
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This is the most traditionally used welding method, which uses a flux-covered metal electrode to carry an electrical current forming an arc that melts the work and the electrode.
a. oxyacetylene welding b. shielded metal arc welding c. gas tungsten arc welding d. gas metal arc welding
A P0131 DTC is being discussed. Technician A says that an exhaust leak upstream of HO2S (bank 1 ) oxygen sensor could be the cause. Technician B says that an extremely rich air-fuel mixture could be the cause. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
A series circuit has a total resistance of 240 ? and a current flow of 4 A. What is the applied voltage?
A. 244 V B. 60 V C. 0.0167 V D. 960 V
In VAV systems with a return air fan, the fan provides _____.
a. the same amount of air that the supply air fan is moving b. more airflow than the supply air fan provides c. the amount of air the supply fan is moving, minus the outside air d. 50 percent of the air that the supply air fan provides