Sprinkler heads are made of metal, and are screwed into the piping at standard intervals. What size is the opening, through which the water is discharged, in a standard sprinkler head?
A. 1 inch opening
B. 1/4 inch opening
C. 3/4 inch opening
D. 1/2 inch opening
Answer: D. 1/2 inch opening
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Answer the following statement true (T) or false (F)
Design should avoid extreme brightness in the field of vision. How might this be accomplished in street lighting?
A) General diffuse distribution. B) Asymmetrical distribution. C) Low Intensity Discharge (LID) lamps.
All of the following statements are true EXCEPT:
A. when a belt is overtightened, parts can be overloaded. B. a slipping belt can result in several problems, including severe engine damage. C. too little tension can cause the belt to slip and the alternator not to charge. D. belts stretch slightly in the first few minutes of operation, and then continue to stretch.
The passive belt system consists of a single continuous length of webbing
Answer the following statement true (T) or false (F)