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Worksheets4th Quarter Recitation- REVIEW
Total questions: 60
Worksheet time: 30mins
What does HVAC stand for?
Heat, Ventilation, and Air Circulation
Heating, Ventilation, and Air Conditioning
High Voltage Air Conditioner
Heating, Variable Airflow, and Circulation
Which component of an HVAC system is responsible for absorbing heat from indoor air?
Condenser
Evaporator Coil
Thermostat
Furnace
What is the function of a thermostat in an HVAC system?
Cools the air
Warms the air
Regulates temperature
Filters air pollutants
What type of ventilation relies on natural airflow through openings like windows and doors?
Natural Ventilation
Forced Ventilation
Filtered Ventilation
Pressure Ventilation
Which air filter is recommended for families with allergies and respiratory issues?
Fiberglass Air Filters
Pleated Air Filters
HEPA Filters
UV Filters
What unit is used to measure heat load in an HVAC system?
Watt (W)
Joule (J)
British Thermal Unit (BTU)
Celsius (C)
Which part of the HVAC system removes heat from indoor air and releases it outside?
Evaporator Coil
Condenser
Thermostat
Duct System
What is the role of the duct system in HVAC?
Generates cold air
Circulates heated or cooled air
Filters dust particles
Regulates humidity
Why is air filtration important in HVAC systems?
It removes dirt from ducts
It prevents heat loss
It increases airflow speed
It controls airborne pollutants
How does a heat pump differ from a cooling-only split system?
A heat pump can provide both heating and cooling
A cooling-only system can only heat air
A heat pump uses ducts while a split system does not
A cooling-only system works only in warm climates
Why are some air conditioners called "split systems"?
They split air into different temperatures
They have separate indoor and outdoor units
They divide air into cold and hot sections
They are installed in two different rooms
If Lee Sin, a homeowner, has allergies and wants an efficient air filtration system, which filter should he choose?
Fiberglass filter
Pleated filter
HEPA filter
UV filter
A building is located in a very humid area where natural ventilation introduces excess moisture. Which solution is best?
Use forced ventilation with filters
Rely solely on opening windows for airflow
Install more return vents
Use UV filters for air purification
Evelynn is a homeowner who wants a HVAC system that provides both heating and cooling but has limited outdoor space for installation. Which system would be most suitable?
Cooling-Only Split System
Window Air Conditioner
Heat Pump
Chilled Water System
The Piltover Hotel is installing HVAC systems in individual rooms. They need a unit that is self-contained and can be installed in an exterior wall. Which option is BEST?
Central Air Conditioning
Packaged Terminal Heat Pump (PTHP)
Chilled Water System
Split System
What is the main function of HVAC drawings?
To design the electrical wiring of a building
To create architectural renderings of buildings
To illustrate the plumbing system layout
To show the location of HVAC units and ducting diagrams
What material should HVAC ducts be made of according to the Mechanical Codes?
Wood
Plastic
Glass
Non-combustible materials such as steel, iron, or aluminum
What does an arrow pointing out from a diffuser in an HVAC drawing indicate?
Return air flow
Airflow direction from the heating-cooling unit
Condensate water drainage
Location of fire dampers
Why must HVAC symbols and abbreviations be learned by technical drafters?
Because they are only used in residential HVAC plans
Because they allow accurate representation and interpretation of HVAC systems
Because they make drawings look more complex
Because they are only used by engineers
Why should a window-type air conditioner be installed at least 2.10 meters above the floor level?
To prevent tampering by children
To avoid water leakage issues
To ensure proper air circulation and prevent obstruction in walkways
To reduce noise inside the room
You are tasked with drawing an HVAC plan using CADD. What should you do FIRST?
Identify and record the lengths of duct runs
Draw the duct center lines as a preliminary layout
Add supply and return registers from a symbol library
Add couplings for maximum duct lengths
If a fire damper fails to close during a fire, what could be the MOST probable consequence?
The HVAC system will stop working
The temperature will drop significantly in the affected area
The air conditioning will become less efficient
The fire may spread through the ducts to other parts of the building
What is the primary function of a CONVEYOR SYSTEM?
To move people vertically
To transport loads and materials efficiently
To provide aesthetic appeal
To function as a decorative installation
Which component of an escalator is a welded steel frame that supports the moving stairway equipment?
Truss
Controller
Track
Handrail
What is the standard speed of an escalator in feet per minute (FPM)?
50 FPM
90 FPM
120 FPM
150 FPM
What is the maximum inclination of a moving walk?
5 degrees
10 degrees
15 degrees
20 degrees
Which type of escalator arrangement has escalators stacked on top of each other, with one going up and the other going down?
Parallel arrangement
Tandem arrangement
Crisscross arrangement
Interlocking arrangement
What is the main purpose of an ELEVATOR?
To transport materials in factories
To replace conveyor systems
To reduce labor costs in warehouses
To move people or goods vertically between floors
What is the function of the COUNTERWEIGHTS in an elevator system?
To guide the elevator car
To balance the weight of the car
To provide power to the lift
To control the speed of the lift
Which of the following is NOT a type of conveyor system?
Belt conveyor
Roller conveyor
Hydraulic conveyor
Chain conveyor
Why is the crisscross escalator arrangement preferred over the parallel arrangement?
It requires less floor space and is cost-efficient
It provides faster movement
It is easier to maintain
It moves more people per minute
What is the key difference between a moving walkway and an escalator?
A moving walkway is only used in malls
An escalator moves horizontally while a moving walkway moves vertically
Escalators are slower than moving walkways
Moving walkways are used for horizontal or inclined transportation, while escalators transport people vertically
Why are conveyor systems widely used in industries?
They are expensive but visually appealing
They require a lot of manual labor
They are primarily used for aesthetic purposes
They improve efficiency, reduce human error, and lower labor costs
The Noxus Company wants to install a transportation system in an airport to help passengers move across long distances with their luggage. Which system is the most suitable?
Elevator
Escalator
Moving walkway
Conveyor belt
Dalmacia Shopping Mall wants to install a system that allows customers to move between floors quickly. The space is limited, and they need a cost-effective option. Which escalator arrangement should they use?
Parallel arrangement
Crisscross arrangement
Spiral arrangement
Tandem arrangement
A factory in Zaun is experiencing frequent breakdowns of their conveyor system due to excessive weight on the belt. What could be a possible reason for this issue?
The conveyor system was designed for lighter loads than it is carrying
The conveyor system is moving too fast
The belt material is too strong
The conveyor system is placed in the wrong location
Engineer Yasuo is designing an escalator for a public transportation hub with high foot traffic. Which factors should they prioritize in the design?
Speed, step size, and handrail color
Step material, weight capacity, and maintenance requirements
Advertising potential, color scheme, and LED lighting
Ticket pricing, security cameras, and music system
What is the main purpose of a FIRE PROTECTION SYSTEM in a building?
Aesthetic enhancement
Structural stability
Hazard prevention and life safety
Increasing property value
Which document sets the fire safety requirements for buildings in the Philippines?
National Building Code
Fire Code of the Philippines 2008
Structural Safety Guidelines
Philippine Environmental Code
What is the minimum width required for an EXIT DOOR?
0.30 m
0.60 m
0.90 m
1.20 m
Which classification refers to buildings that house offices?
Educational
Institutional
Mercantile
Offices
What type of sprinkler system keeps water in the pipes at all times?
Dry pipe system
Wet pipe system
Pre-action system
Deluge system
What is the primary function of a FIRE SPRINKLER SYSTEM?
To release foam to suppress fire
To cool and wet surfaces to prevent flashover
To alarm the occupants without suppressing fire
To direct smoke out of the building
What type of standpipe system provides water to fire hoses on each floor?
Horizontal standpipe
Open loop standpipe
Vertical standpipe
Portable standpipe
What type of fire construction classification includes wood frame structures?
Type I
Type II
Type III
Type V
Why is it important for exit doors to have quick-release catches?
To prevent burglary
To allow for quick escape in emergencies
To restrict unauthorized access
To provide ventilation during a fire
How do fire zones help in fire prevention?
By ensuring fire-resistant materials are used in high-risk areas
By preventing all types of fires
By allowing buildings to be constructed closer together
By restricting water usage in fire-prone areas
Why do buildings with freezing conditions require a DRY PIPE SPRINKLER SYSTEM?
To prevent water from freezing inside the pipes
To reduce water consumption
To increase water pressure
To minimize pipe corrosion
If a commercial building is located in a high-hazard area, which type of sprinkler system is best suited?
Deluge system
Wet pipe system
Dry pipe system
Pre-action system
Miss Fortune, a building designer, is planning a fire exit for a residential home. Which minimum passage width should she follow?
0.60 m
0.75 m
0.90 m
1.20 m
Nautilus is a fire protection engineer. He is reviewing a building with an ordinary hazard content classification. Which of the following would NOT typically be found in such a building?
Flammable liquids in large quantities
Office furniture and supplies
Retail store merchandise
Light-duty machinery
The city planner Jayce is determining fire protection requirements for a newly developed area. Which of the following factors is most critical in deciding whether a fire zone is needed?
The number of floors in a building
The materials used in nearby buildings
The average temperature of the area
The presence of underground utilities
What is the function of a drop line in a gas piping system?
To carry gas up to an appliance
To reduce gas pressure before it reaches appliances
To distribute gas to multiple appliances
To remove moisture from gas pipelines
What material is commonly used for underground gas pipes due to its corrosion resistance?
Galvanized steel
Copper
Black steel
Corrugated Stainless Steel Tubing (CSST)
What is the primary function of a MANIFOLD in a gas piping system?
To measure gas flow
To store gas for later use
To connect smaller pipes to a larger distribution pipe
To regulate gas pressure
Why is it important to install shut-off valves in gas piping systems?
To allow for easier maintenance and emergency shutdowns
To increase gas pressure in the system
To prevent leaks from occurring
To enhance the efficiency of gas appliances
What is the main purpose of COMPRESSOR STATIONS in gas pipelines?
To measure gas flow along the pipeline
To store gas for future use
To filter impurities from the gas supply
To maintain gas pressure as it travels through pipelines
Tryndamere, a homeowner, plans to install a gas stove in their kitchen. Which of the following must be ensured for a safe gas connection?
The gas pipe should be longer than 2 meters to allow flexibility
The gas line should be concealed within the walls for aesthetic purposes
The connection must have a shut-off valve in the same room as the appliance
The gas pipeline should be close to electric wiring for easy access
A gas pipeline was installed underground near a house. What potential safety issue should be considered before installing a drainage pipe nearby?
Gas leaks could mix with wastewater, creating toxic fumes
The gas pipeline could become corroded from water exposure
The drainage pipe could put pressure on the gas pipeline, causing cracks
All of the above
A building has a gas pipeline made of black steel pipes, but corrosion is observed in several areas. What is the best long-term solution to ensure safety?
Apply a protective coating to prevent further rusting
Replace the black steel pipes with CSST or galvanized steel
Regularly inspect and clean the affected areas
Reduce gas pressure to minimize corrosion effects
