 
			 
			MCQOPTIONS
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				| 1. | The knocking tendency in spark ignition engines can be decreased by adding dopes like tetra ethyle lead and ethylene dibromide. | 
| A. | Agree | 
| B. | Disagree | 
| C. | Can't say | 
| D. | None of these | 
| Answer» B. Disagree | |