← Load & Demand – Electrician Journeyman Exam Flashcards

Electrician Journeyman Exam Practice Test

Free 5-question sample test with instant feedback. See how ready you are.

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Sample Questions

Question 1

What is the definition of 'demand factor' as used in electrical load calculations?

Answer: Demand factor is the ratio of the maximum demand of a system to the total connected load of that system, expressed as a percentage or decimal.

Question 2

What does 'connected load' mean in electrical load calculations?

Answer: Connected load is the total wattage (or VA) of all electrical equipment that is wired and connected to a system, regardless of whether it is operating at any given time.

Question 3

What is 'diversity factor' and how does it differ from demand factor?

Answer: Diversity factor is the ratio of the sum of the individual maximum demands to the maximum demand of the whole system; it is always greater than or equal to 1, whereas demand factor is always less than or equal to 1.

Question 4

What is the NEC definition of 'continuous load'?

Answer: A continuous load is a load where the maximum current is expected to continue for 3 hours or more.

Question 5

What is 'maximum demand' in the context of electrical load calculations?

Answer: Maximum demand is the greatest of all demands that have occurred over a specified period of time, typically measured in kilowatts or kilovolt-amperes.