Which of the following is the correct method for troubleshooting an electronic time delay?

a. Check the time delay with a stopwatch and adjust as necessary.
b. Check for the presence of smoke near the furnace.
c. Look for an unbalanced flame.
d. Check the input and output voltage to and from the time delay.


d. Check the input and output voltage to and from the time delay.

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According to the National Electrical CodeĀ®, Communications cables can be run in the same raceway or enclosure as _________ conductors.

A. Electric light and power B. Class 1 C. Class 3 only D. Class 2 and Class 3

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An alert welder can detect a burn-through when welding because ____________________ activity

increases.

Fill in the blank(s) with the appropriate word(s).

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How does a thermocouple provide pilot safety?

A) flame rectification B) it generates voltage to hold in the pilot safety solenoid C) expansion of a volatile fluid closes a safety switch D) heat conducts through the thermocouple to the valve

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For multilevel structures, intermittent bracing must always be used on all levels.

Answer the following statement true (T) or false (F)

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