Final answer:
The operator must retain an unobstructed view of the cargo tank and stay within usually 25 feet to effectively monitor and respond to emergencies during unloading.
Step-by-step explanation:
The person unloading a cargo tank motor vehicle in other than metered delivery service must maintain an unobstructed view of the cargo tank and delivery hose. The regulations typically mandate that the individual must remain close enough to take prompt corrective action in the event of a spillage or other emergency. While the exact distance can vary by jurisdiction, it's commonly required that the operator stays within 25 feet (approximately 7.6 meters) of the cargo tank.
In the context of unloading a cargo tank motor vehicle, the person unloading the vehicle must have an unobstructed view of the cargo tank and delivery hose and remain within a certain distance of the cargo tank. The specific distance will depend on the regulations in place, as well as any safety guidelines established by the company or industry standards. It is crucial for the person unloading to stay within this distance to ensure the smooth and safe operation of the unloading process.