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28 Cards in this Set
- Front
- Back
The function of a rain sensor used on a residential irrigation is to? |
Override the timer & turn off the irrigation system if adequate precipitation has fallen |
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A compressed air system is designed so that the _____ will automatically shut it off once the desired pressure has been reached. |
Pressure control valve |
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If the water in a pool is displaying greenish blue colour this is an indication that the? |
PH level is too low |
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When multiple traps need protection an automatic trap primer can be used. This primer can serve _______ or more traps from a common header? |
6 |
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According to the NFPA the maximum water temp of a residential sprinkler system is ____ degrees Celsius? |
49 |
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Test |
Test |
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Pressure switches for compressors should have a pressure differential of? |
15 PSI |
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After coolers are installed? |
After the compressor & before the receiver |
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Pre filters are installed on the |
Suction inket |
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Most compressors are? |
Belt driven |
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Impulse heads will spray a radius of? |
15-20’ |
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Medical gas labeling for Oxygen? |
Green on white |
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Medical gas piping for N2O2 Aka nitrous oxide? |
White or silver on blue |
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Medical gas piping for Helium? |
White or silver on brown |
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Medical gas piping for Nitrogen? |
White or silver on black |
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Medical gas piping for CO2? |
Black on grey |
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Medical gas piping for medical air? |
Black & white checkered lettering on black & white background |
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Medical gas piping for medical vacuum? |
Silver or black on yellow |
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What can be used to clean gas piping? |
Trisodium phosphate Or Sodium carbonate |
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Residential bury depth of lawn irrigation? Commercial bury depth of lawn irrigation? |
Residential 6-12” Commercial 12-18” |
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Minimum dimensions of a barrier free washroom? |
1500 x 1500 |
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Flood level rim of toilet? |
430 +/- 30 mm |
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Height from ground of barrier free switches? Ex tstat intercoms fire alarms |
1200 mm max |
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Easily operable definition? |
Controls which can be operated with one hand with a force of 22N or 4.95 pounds |
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Height of grab bar in barrier free washroom? |
315 mm +/- 15 above water closet |
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Door opening on barrier free washroom? |
760 minimum |
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Rough in dimension for barrier free w/c from finished side wall? |
460-480mm. |
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Sink dimensions for barrier free washroom? |
Flood level rim 865mm min. Front edge 735mm min. Exposed parts to be insulated & guarded |