Adv. Plumbing Unit Test

What type of pipe is used for drains, waste and vents?

• DMV

• PVC

• Light wall copper

• Galvanized pipe

What percentage of the world’s fresh water withdrawals are used for irrigation?

• 75 Percent

• 60 Percent

• 40 Percent

• 90 percent

Which of the following does NOT influence evapotranspiration?

• Temperature

• Stage of root growth

• Humidity

• Wind

What is the efficiency percentage of flood or furrow irrigation?

• 50 percent

• 40 percent

• 98 percent

• 10 percent

What percentage of water loss does an irrigation device which is only one to two feet from the ground have?

• 40 percent

• 98 percent

• 50 percent

• 10 percent

Which of the following is NOT a common type of irrigation?

• Bucket

• Surface

• Seepage

• Drip

Which of the following is an example of sprinkler irrigation?

• Pail or bucket

• Center pivot

• Drip

• Condensation

Which of the following is NOT a plant or soil condition which indicates a need for irrigation?

• Location of soil moisture

• Type of soil

• Evapotranspiration

• Plant height

What is the term for water held in the soil between field capacity and permanent wilting point?

• Water Tables

• Condensation

• Available water

• Rainwater harvesting

What are the two types of root systems called?

• Contained or spreading

• Fixed or localized

• Long or short

• Shallow or deep