Networking professionals use the 7 layer OSI stack to troubleshoot, design and plan communications networks
Indicate whether the statement is true or false
TRUE
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Sucking insects must be controlled with (a) _____
A) contact chemical B) fumigant C) systemic D) all of the above
Electronic air cleaners generally have ____.
A. ionizing sections B. charcoal filters C. pre-filters D. all of the above
What is a redundant gas valve?
A) A gas valve that was once necessary on older furnaces but is no longer used B) A gas valve with two valves mechanically in series C) A gas valve that is used in case the main valve quits working D) A gas valve that has no real purpose
Technician A says that during the purge cycle, the booth will recirculate the heated air to cut down on the cost of heating air. Technician B says that during the purge cycle, heated air is vented outside the booth to eliminate any solvent accumulation. Who is correct?
A. Technician A only B. Technician B only C. Both Technicians A and B D. Neither Technician A nor B