NJ Boiler Operator Practice Questions - New Jersey Boiler Operator License Exam

What are the NJ operating engineer license grades, from lowest to highest?

Blue Seal (Grade C), Red Seal (Grade B), Gold Seal (Grade A) Black Seal, Blue Seal, Red Seal, Gold Seal 1st Class, 2nd Class, 3rd Class Engineer Apprentice, Journeyman, Master, Chief Engineer

Correct Answer:

Blue Seal (Grade C), Red Seal (Grade B), Gold Seal (Grade A)

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