A section of the boiler utilized to preheat feed water before it enters the main boiler system.
a. convection section
b. economizer section
c. radiant tube section
d. shockbank
Answer: B
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If the SAI angle is 12 degrees, and the camber is 1 degree +, the included angle is:
A. 10 degrees B. 11 degrees C. 13 degrees D. 14 degrees
Where the grounding electrode conductor or bonding jumper connects to a single or multiple rod, pipe, or plate electrode(s) or any combination thereof, or does not extend on to other types of electrodes that require a larger size conductor, the grounding electrode conductor shall not be required to be larger than ____.
A. 2 AWG copper wire or 4 AWG aluminum B. 4 AWG copper wire or 6 AWG aluminum C. 6 AWG copper wire or 4 AWG aluminum D. 6 AWG copper wire or 8 AWG aluminum
List operational checks to make during an air conditioning planned maintenance service call
What will be an ideal response?
A circuit that can be turned on with one push button and turned off with another can be constructed with ____ gate(s).
A. an AND and an OR B. two AND C. an INVERTER and a NAND D. two NAND