Question

rectifier must be connected to heat sink and cool air blown over them. true false question 6 1 pt shielded metal arc welding often continues for long periods of time. true false

Explanation:

1. For rectifiers: They generate heat during operation; heat sinks and forced air cooling prevent overheating, ensuring proper function.
2. For shielded metal arc welding (SMAW): SMAW uses consumable electrodes that need frequent replacement, so it cannot run for long continuous periods.

Answer:

1. True
2. False