Nccer Electrical Level 3 Module 6 'distribution Equipment' Questions And Answers 100% Verified A+ Guaranteed

Which of the following is true with regard to switchboards {Ans: Switchboards are used to subdivide large blocks of power}What is the abbreviation for an oscilloscope? {Ans: CRO}The trip rating of a circuit breaker used as the main protective device in a panelboard cannot exceed ___. {Ans: the amperage capacity of the busbars in the panelboard}The secondary of a current transformer is usually designed for a rated current of ___. {Ans: 5A}When the CT is on an energized buss and not connected will ___. {Ans: Burn up}A connection diagram should be used to ___. {Ans: Show the internal wiring connections between the parts that make an apparatus}The instantaneous trip feature of a standard ground fault relay has a fixed time delay of approximately ____ cycles. {Ans: 1.5}Specific instructions for handling, storage, installation, testing, and maintenance of distribution equipment are found in the ____. {Ans: manufactures instructions}Common causes of ground faults include ___, ___, ___, ___, ___, and ___. {Ans: deteriorated insulation, moisture, dirt, rodents, foreign objects(tools), and careless operation}Which of the following is NOT a general classification of circuit breakers? {Ans: Fuse circuit breaker}A transformer's temperature rise rating refers to