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
A
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Twenty-one pipe flanges are flame cut from a plate that is 16.25” wide. Assuming there is no waste, how much plate do the flanges require, in inches?
What will be an ideal response?
How much makeup water should be provided to overcome evaporation losses and bleed off for a swimming pool?
A) Depends on the depth of the pool. B) About 0.5 to 1.5 gpm per 1000. C) About 1 or 2% of the pumped circulation rate.
What are the symptoms of insufficient light in plants?
What will be an ideal response?
Excessive corrosion on an electrical connector ________
A) Can cause a fuse to blow B) Can cause lights to be dim C) Both A and B D) Neither A nor B