Name: 4.
In AC system, the outside fresh air is drawn into the system by a vent into
Course & year: Date: indoor creating a positive air pressure.
a. Compressor b. Evaporator c. Heat Exchanger d. Condenser
IDENTIFICATION 5. The first school to offer HVAC training in 1899.
1. Percentage of typical fresh air intake of an Air a. New York College b. Coyne college c. Harvard University d. San Francisco
Conditioner. University
2. The designer of the first air conditioner developed. 6. The Society that governs the codes and standards of HVAC in the Philippines
3. The process of changing or replacing air in any space to a. ASHRAE b. ASME c. PSHER d. PSVARE
control temperature or remove any combination of moisture, odors, smoke, heat, 7. Which of the following can be the factor affecting human comfort.
dust, airborne bacteria, or carbon dioxide, and to replenish oxygen. a. Air Movement b. Humidity c. Noise level d. All of the above
Is a term which refers to air quality to within around buildings structures, especially 8. The type of ventilation that can be provided by an AHU (Air Handling Unit) and is used
as it relates to the health comfort of the building occupants to control indoor air.
4. The key factor in reducing the spread of airborne a. Chilled Water AC System b. Electrical Ventilation c. Mechanical Ventilation
illnesses. d. Natural Ventilation
5. The newly- invented type of AC System that is not well 9. Which of the following can be the reason why natural ventilation is not applicable in
known in the industry and commonly used to heat or cool high-rise building. some situation that requires mechanical ventilation.
6. An example of a mechanical ventilation typically used in a. Natural system can be effective in terms of quality and quantity
kitchen and bathrooms to control odors and sometimes humidity.. b. Building location that makes natural vent impossible
7. Type of AC system comprising an indoor and outdoor c. Natural Vent requires little maintenance
unit.
d. Mechanical Vent control odors.
8. The System type that recycles the air back.
10. What is the use of Ventilation in an AC system?
9. of power of AC leads to power wastage and inefficient
a. To manipulate the percentage of return air made up of fresh air
use
b. To regulate the recycled air flowing in the system
c. To adjust the thermostat of air in the system
MULTIPLE CHOICE
d. To make sure that the air flowing is filtered.
Direction: Encircle only the letter of your answer.
Essay
1. One of the newly-invented technology of AC System that is not familiar to many
If you were to choose, What type of HVAC system will you use? AC or
engineers.
Ventilation? Justify.
a. Chilled Water AC System b. Chilled Beam AC System c. District Cooling AC
System d. Packaged AC unit
2. Assuming that the volume of a room is 125 m³ and the total new air supplied is
12500 m³ in a day. What is rate of air changes per hour.
a. 4.17 b. 5 c. 5.17 d. 10
3. The following are advantages of natural ventilation economically except:
a. Factor in reducing spread of airborne illnesses
b. Does not require mechanical appliances
c. Requires little maintenance
d. Combination benefit of ventilation, lighting and esthetic value
Key to correction
Identification
1. Sick building syndrome
2. Supply air
3. Indoor air quality
4. Indoor air quality
5. Volatile organic compounds (VOC’s)
6. Ozone
7. Particulates contaminants
8. Filtration
9. Controlling indoor moisture level
10. Dilution solution
Multiple choice
1. A
2. B
3. D
4. C
5. D
6. B
7. A
8. D
9. B
10. a
