BC Ch.7 Defintions

Questions and Answers

What is the primary function of a boiler?

To create steam (correct)

To distribute electricity

To cool air

To circulate air throughout a building

What is a cable tray used for?

Covering long distances to protect wiring in large commercial and industrial buildings (correct)

Storing electrical cables

Distributing electricity throughout a building

Cooling refrigerants in HVAC systems

What does a condenser do in a refrigeration system?

Releases heat to the surrounding area (correct)

Distributes electricity throughout a building

Mixes ammonia and water

Absorbs heat from the surrounding area

What is a conductor in an electrical system?

The metal (copper or aluminum) that distributes electricity throughout the building Signup and view all the answers

What is the purpose of conduit in an electrical system?

To protect exposed wiring from physical damage Signup and view all the answers

What is a diffusion system used for?

To mix ammonia and water, diluting the ammonia concentration before discharge Signup and view all the answers

What system controls the distribution of emergency power throughout a building?

Electrical service panel Signup and view all the answers

What is the primary function of a refrigerant in a cooling system?

To absorb and release heat Signup and view all the answers

What happens to elevators during Phase I operation in a fire emergency?

Elevators are recalled to the first floor lobby Signup and view all the answers

Which of the following is a responsibility of HVAC systems?

Heating, ventilating, and air conditioning Signup and view all the answers

What type of elevator is designed for evacuating occupants in tall buildings?

Occupant evacuation elevator Signup and view all the answers

What is the role of Phase II elevator operation during a fire emergency?

Control by fire fighters using a special key Signup and view all the answers

What does the evaporator do in a refrigeration system?

Cools the surrounding area by eliminating heat Signup and view all the answers

What component of the refrigeration system is responsible for rejecting heat?

Condenser Signup and view all the answers

What is the main purpose of a cable tray in a building's electrical system?

To support and protect electrical wiring Signup and view all the answers

What type of power does standby power provide during a power outage?

Power for critical life-safety features Signup and view all the answers

Study Notes

Boilers and HVAC Systems

Boilers primarily create steam for heating purposes in buildings.
HVAC systems encompass heating, ventilation, and air conditioning to maintain indoor air quality and comfort.

Electrical Infrastructure

Cable trays protect and support wiring over long distances in large commercial and industrial buildings.
Conductors, typically made of copper or aluminum, distribute electricity throughout a building.
Conduits protect exposed wiring from physical damage, ensuring electrical safety.

Refrigeration Systems

Condensers release heat to the surrounding area as part of the refrigeration cycle.
Evaporators cool the surrounding area by absorbing heat from the refrigerant.
Refrigerants are crucial for absorbing and releasing heat in refrigeration systems.

Elevator Operations and Safety

Occupant evacuation elevators are designed for buildings exceeding 420 ft (128 m) in height, facilitating safe exits during emergencies.
Phase I elevator operation involves recalling elevators to the first floor lobby upon smoke detector activation.
Phase II allows fire fighters to control elevators using special keys, enhancing the efficiency of rescue operations.
Phase III involves occupants using elevators for self-evacuation before fire fighter assistance arrives.

Emergency Power Systems

Emergency power provides electricity for critical life-safety features, such as fire pumps and alarm systems, during outages.
Standby power supports less critical building functions when the main power source fails.

Electrical Control Systems

Electrical service panels manage circuit conductors and power supply, centrally controlling the electrical system's safety and functionality.
Cable trays and conduits play essential roles in protecting and organizing electrical wiring within a building.

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Description

Test your knowledge on HVAC systems and functions of equipment like boilers and cable trays with this quiz. Answer multiple-choice questions that explore important aspects of building systems. Perfect for students and professionals in the field.