Hot Water phase 2 1.9 LO Systems Quiz

What is secondary circulation?

• A ring main from the hot water draw off which is returned about 25% down the cylinder

• A method of heating water using solar panels

• A system for cooling down hot water in the pipes

• A method of preventing water flow in the pipes

What type of pump is used with secondary circulation?

• A steel pump

• A copper pump

• A bronze pump

• A plastic pump

Why is a check valve used?

• To regulate water temperature

• To reduce energy consumption

• To increase water flow

• To prevent reverse circulation

How is the secondary circulation pump normally operated?

• By a temperature sensor

• By a motion sensor

• By manual control

• By the use of a time clock

What is trace heating?

• An electrical element in contact with the pipe to maintain the temperature of the water in the pipe

• A system for heating water using gas

• A method of preventing water flow in the pipes

• A method of cooling down hot water in the pipes