To connect a branch duct to the main duct, a ____________________ fitting is used.
Fill in the blank(s) with the appropriate word(s).
take off
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The OR gate performs a function similar to series-connected switches
Indicate whether the statement is true or false
You need to de-energize a circuit to work on a unit. To ensure your safety, you should:
A) Leave a clearly written"Keep Off" message in 1" block letters. B) Lock out and tag out the circuit. C) Ask a friend to stand beside the disconnect switch to ensure nobody turns it on. D) Work quickly to reduce your exposure to the electricity.
What is true about bad weather and driving conditions?
a. The road is more slippery when the rain continues than when rain begins. b. Driving conditions became more dangerous when temperature arises above freezing. c. When the temperature drops, the bridges freeze before the road.
Technician A says that cracking can be prevented by applying the recommended film thickness. Technician B says that wrinkling is cured by removing all cracks in the affected area, preparing the surface with undercoats and sealers according to the manufacturer’s recommendations, and reapplying topcoat. Who is correct?
A. Technician A only B. Technician B only C. Both Technicians A and B D. Neither Technician A nor B