Final answer:
Type SJ flexible cord is indeed recognized, and it is designed for lighter-duty applications with a voltage rating of 300 Volts according to the National Electrical Code.
Step-by-step explanation:
The question asks whether Type SJ flexible cord is recognized. The answer to this question is true. Type SJ is a designation of flexible cord that is recognized under the National Electrical Code (NEC). The 'SJ' stands for junior service, indicating it is a lighter, more flexible version of the standard 'S' service cord, which has a voltage rating of 300 Volts and is typically used for lighter-duty applications than the standard 'S' cord, such as in office machines or portable lights.