 
			 
			MCQOPTIONS
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				| 1. | The voltage required to produce a spark across the gap, between the sparking points is | 
| A. | 2000 to 4000 volts | 
| B. | 4000 to 6000 volts | 
| C. | 6000 to 10 000 volts | 
| D. | 10 000 to 12 000 volts | 
| Answer» D. 10 000 to 12 000 volts | |