The operation of the timer may be thrown off if they are located in rungs that are jumped over.
Answer the following statement true (T) or false (F)
True
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Name at least 5 of the 7 checks and adjustments that a technician should make when servicing an oil furnace.
What will be an ideal response?
The subsequent problems deal with the circuit below where all voltage sources are dc and the circuit is assumed to be in steady state. Also, R1 = R2 = R3 = R4 = R.
If R3 is replaced by an open circuit and I2 is known, the current through the open circuit (where R3 was) will be
A. ?I2 B. 2I2 C. I2 D. 0 E. I2 / 2
What is the function of a quick release valve when used in a front service brake circuit?
A. speeds up application time B. speeds up release time C. intensifies service pressure D. all of the above
If the temperature rise of a furnace is too low, how can it be increased?
A) Reducing the air flow B) Increasing the manifold pressure by 1/2"wc over the data plate recommendation C) Increasing the voltage to the furnace D) Increasing the air flow