Heating Controls

What is the purpose of a thermostat in a heating system?

• To measure the amount of energy consumed

• To maintain the system's temperature near a desired set point

• To regulate the flow of electricity

• To physically move the heating elements

Which of the following is NOT a common sensor technology used in thermostats?

• Electrical thermocouples

• Optical sensors

• Electronic thermistors

• Bimetallic sensors

Where is the best location for a room thermostat?

• In the hallway

• Outside the house

• In a living room

• In the bathroom

What is the recommended temperature for storing hot water to prevent legionella?

• 44°C/111°F

• 50°C/122°F

• 60°C/140°F

• 70°C/158°F

What is the function of an electric immersion heater's built-in thermostat?

• To light up the heater

• To prevent overheating

• To generate heat

• To measure water flow

Why is it not recommended to leave the heating on all day?

• Because it can cause electrical issues

• Because it uses more energy and leads to heat loss

• Because it can overheat the thermostat

• Because it is unnecessary for modern insulation

What is the purpose of a seven-day timer for heating systems?

• To allow for different heating patterns on weekdays and weekends

• To save electricity by heating only at night

• To turn off the heating system for one day a week

• To monitor energy consumption

What is the main use of pumps and valves in central heating systems?

• To measure the temperature of the water

• To produce and control the flow of hot water

• To control the electrical supply to the system

• To generate heat within the boiler

What does a three-port valve do in a heating system?

• Filters the water

• Generates electrical current

• Directs water out of one of two outlets or both

• Measures the temperature of the water

Why would it be undesirable for a pump to be running while a zone valve is closed?

• It wastes energy and can cause unnecessary wear

• It can cause the pump to overheat

• It increases the risk of electrical shock

• It can lead to water leakage