AT Flashcards
What is the primary purpose of heating systems in HVAC?
To provide warmth to indoor spaces during cold weather
Which of the following heating systems uses natural gas, oil, or electricity to heat
Furnaces
What is the main purpose of ventilation in HVAC systems?
To ensure circulation of fresh air and remove stale or polluted air
What does a Heat Recovery Ventilator (HRV) do in a ventilation system?
Exchange heat between incoming fresh air and exhaust air to improve energy efficiency
Which of the following systems is used for cooling and dehumidifying air, especially in hot weather?
Air conditioning systems
How does a central air conditioning system work?
Uses a network of ducts to distribute cool air from a central unit
Which of the following systems uses separate indoor and outdoor units connected by refrigerant lines?
Split Systems
What is the key difference between refrigeration and air conditioning?
Refrigeration uses coolant alone, while air conditioning uses both coolant and outside air
Which of the following is true about refrigeration?
Refrigeration is used to remove heat from a space or substance and transfer it elsewhere
What type of air conditioning system is ideal for spaces without existing ductwork?
Ductless Mini-Split Systems
Which of the following is the primary function of a circuit breaker in an electrical system?
To disconnect power in case of an overload or short circuit
What is the purpose of a capacitor in an electrical circuit?
To store and release electrical energy
Which of the following components is used to protect an electrical circuit from overcurrent?
Fuse
When testing an electrical component, what tool is commonly used to measure resistance?
Multimeter
If a circuit shows no power, what is the first step in troubleshooting the problem?
Inspect the power source and ensure it’s delivering power
