Answer :

Final answer:

The operational pressure for oil burner nozzles can significantly vary, but usually falls within 100 to 200 psi. Therefore, both options a (100 psi) and c (200 psi) could be correct based on the specific context of the question.

a) 100 psi

Explanation:

The pressure at which oil burner nozzles are typically rated is a little bit complex. However, it is not directly indicated in the options provided (a. 100 psi, b. 150 psi, c. 200 psi, d. 300 psi). In reality, the operational pressure of oil burner nozzles can significantly vary, depending on the make and model of the equipment, its intended application, and the specific requirements of the system. Nevertheless, a common pressure range for many oil burner nozzles is around 100 to 200 psi. Thus, both option a (100 psi) and option c (200 psi) could potentially be correct. Please refer to your specific text or teacher for the context of this question as the right answer might be based upon further instruction given.

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