Question

A ________ in the electric kettle can turn itself on and off when required without troubling you, even when you are away. It is not just cost-saving, also something that would help you do your bit towards energy conservation.

1. programmable thermostat
2. programmable watch
3. programmable speaker
4. programmable radio

Answer 1

Correct Answer - Option 1 : programmable thermostat

Thermostats: 

• A thermostat is a device that senses the temperature of a physical system and performs actions so that the system's temperature is maintained near a desired set-point.

• In a system including relays, valves, switches, etc., the thermostat generates signals, usually electrical, when the temperature exceeds or falls below the desired value.
• It usually is used to control the flow of fuel to a burner or flow of electric current to a heating or cooling unit, or of a heated or cooled gas or liquid into the area it serves.
• The thermostat is also an element in some types of fire-detection warning systems.

 

Programmable Thermostat:

• A programmable thermostat is a thermostat that is designed to adjust the temperature according to a series of programmed settings.
• In an electric kettle, a programmable thermostat works by sensing the temperature in the electric kettle.
• It switches on the heating when the temperature falls below the thermostat setting, and switches it off when the required temperature is reached.
• Programmable thermostats are also known as setback thermostats or clock thermostats.