Final answer:
Before connecting the nozzle to the aircraft, the SPR monitor must follow safety protocols, including grounding the refueling vehicle to prevent static sparks, checking for foreign objects or damage, verifying fuel type, and communicating with aircraft personnel.
Step-by-step explanation:
To concurrently service cargo/passenger aircraft, the single-point receptacle (SPR) monitor must ensure that all safety protocols are followed before connecting the nozzle to the aircraft. This includes grounding the fuel servicing vehicle to prevent static electricity build-up, which can cause sparks and potentially ignite fuel vapors. The SPR monitor should also check for any foreign objects or damage on the nozzle and receptacle, verify that the correct fuel type is being used, and ensure that communication with aircraft personnel is established to coordinate the refueling process.