CIT Irrigation System Installation & Maintenance 2

Question 1

When scheduling irrigation for a newly installed turf lawn (sod or seed), the watering frequency should initially be:

Accepted Answer

Multiple times per day with short run times to keep the surface consistently moist until roots establish

Answer

Once per week with deep watering

Answer

The same as an established lawn

Answer

Only when visible wilting occurs

Question 2

During a routine maintenance visit, a technician notices that several spray heads on a zone are producing a fine mist rather than a defined spray pattern. This indicates:

Accepted Answer

Operating pressure at the heads is too high, causing misting that wastes water through wind drift and evaporation

Answer

The system is working correctly

Answer

The heads need to be raised higher

Answer

The zone valve is partially closed

Question 3

A proper irrigation system maintenance checklist should include all of the following EXCEPT:

Accepted Answer

Adding chlorine to the mainline to improve water quality

Answer

Inspecting and adjusting sprinkler head alignment and coverage

Answer

Checking for and repairing leaks at heads, fittings, and valves

Answer

Testing the rain sensor and controller programming

Question 4

After completing an irrigation repair, the technician should always:

Accepted Answer

Test the repaired zone, verify proper operation, document the work performed, and inform the property owner of any remaining issues

Answer

Leave immediately to save time

Answer

Only test the zone if the customer requests it

Answer

Wait 24 hours before testing

Question 5

An irrigation system installed with reclaimed (recycled) water must have what distinguishing feature on all above-ground components?

Accepted Answer

Purple identification — purple pipe, purple valve box lids, purple tags on heads, and warning signs stating 'RECLAIMED WATER - DO NOT DRINK'

Answer

Red paint

Answer

Yellow caution tape

Answer

No special identification is required

Question 6

What is the purpose of a flushing valve or end cap on a drip irrigation lateral line?

Accepted Answer

To allow periodic flushing of accumulated sediment and debris from the lateral to prevent emitter clogging

Answer

To connect additional drip tubing

Answer

To regulate pressure in the drip system

Answer

To connect the lateral to the mainline