The operating sequence to light the main burners on an intermittent pilot system is
A) the main valve is energized, then the spark igniter, and finally the pilot valve
B) the pilot valve and spark igniter are energized, the pilot flame is proved, and then the main gas valve is energized
C) the main valve and spark igniter are energized, the pilot flame is proved, and then the pilot gas valve is energized
D) the pilot valve and main valve are energized simultaneously
B
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Although it is general practice to take measurements from the outside wall to the edge of openings, it is considered more accurate to measure to the center of openings than to the edge of the jambs.
Answer the following statement true (T) or false (F)
OSHA's Program that focuses on employers that willfully and repeatedly endanger workers is known as:
A) OSHA's Repeat Offender Program B) OSHA's Severe Violator Enforcement Program C) OSHA's Whistleblower Program D) OSHA's DeMinimis Enforcement Program
The required R-value of duct insulation, per ASHRAE guidelines, is determined by _____.
a. the result of calculations for the heating mode b. the result of calculations for the cooling mode c. the highest value resulting from calculations for both heating and cooling d. an ASHRAE chart developed for different parts of the country
What types of clothing are available for torso protection?
What will be an ideal response?