Real-time Processing and Central-Heating Systems

Which of the following is an example of a system that uses real-time processing?

• A) A batch processing system

• B) A computer-controlled greenhouse

• C) A manual heating system

• D) A delayed response system.

What is the function of the microprocessor in a central-heating system?

• To provide manual control

• To process input data and control the heater

• To increase the temperature

• To decrease the temperature

What happens to the temperature in a real-time processing system when the heater is turned on?

• It decreases

• It remains constant

• It increases

• It fluctuates randomly

What happens if the temperature from the sensor is lower than the pre-set value?

• The microprocessor switches the pump off

• The microprocessor sends a signal to open the gas valves

• The microprocessor ignores all readings

• The microprocessor sends a signal to close the gas valves.

Fill in the blank: If the temperature is higher than or equal to the pre-set value, the microprocessor sends a signal to switch the pump off and _______.

• open the gas valves

• close the valves

• increase the temperature

• decrease the temperature

Fill in the blank: The system is known as a real-time system because the output affects the _______.

• input

• temperature

• microprocessor

• boiler

Fill in the blank: The microprocessor stores the required temperature as a _______.

• sensor value

• pre-set value

• random value

• default value

If the temperature from the sensor is higher than the pre-set value, what action does the microprocessor take in an air-conditioning system?

• Turns the system off

• Sends a signal to an actuator to switch the fans on

• Increases the temperature

• Alerts the user

What is the function of the 'divert-and-attitude-control' system in a missile?

• To launch the missile

• To increase or decrease thrust in engines

• To refuel the missile

• To land the missile.

The guidance system of a missile consists of a radar and a ______.

• Fuel tank

• Navigation system

• Communication device

• Landing gear