Deck : Deck General - 2697/5076
|
|---|
| « Previous Question |
| What is the chief advantage of an SCR or AC-DC system over a straight DC system for powering drilling rig machinery? |
| A) Commutators are eliminated. |
| B) SCR systems are simpler. |
| C) Required power can be drawn from a common AC bus. |
| D) Several machines can be operated from a DC bus. |
loading answer...
| Comments |
|---|
| There are no comments for this question. |