CIT Drip and Micro-Irrigation Systems 1

Question 1

What is the primary water-saving advantage of drip irrigation over sprinkler irrigation?

Accepted Answer

Water is applied at the root zone, reducing evaporation and wind drift

Answer

Higher flow rates deliver water faster

Answer

Drip systems require no filters

Answer

Drip systems operate at higher pressure

Question 2

What is a pressure-compensating (PC) drip emitter?

Accepted Answer

An emitter that maintains a constant flow rate across a range of inlet pressures

Answer

An emitter that increases pressure along the line

Answer

A backflow check valve

Answer

A pressure gauge fitting

Question 3

What is the typical operating pressure range for drip irrigation systems?

Accepted Answer

15–30 PSI

Answer

80–100 PSI

Answer

40–60 PSI

Answer

5–8 PSI

Question 4

What minimum mesh size filter is recommended upstream of drip emitters?

Accepted Answer

120-mesh

Answer

40-mesh

Answer

80-mesh

Answer

200-mesh

Question 5

What is the purpose of a pressure regulator installed in a drip irrigation zone?

Accepted Answer

Reduce and stabilize pressure to protect drip tubing and emitters

Answer

Increase line pressure to the sprinklers

Answer

Measure total flow rate

Answer

Prevent biological clogging

Question 6

What material is the flexible black mainline and lateral tubing used in most drip systems made of?

Accepted Answer

Polyethylene (poly) tubing

Answer

Galvanized steel

Answer

PVC schedule 40

Answer

Copper pipe