Try to answer these 100+ Environmental Control Systems MCQs and check your understanding of the Environmental Control Systems subject.
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A. A small climate
B. The average weather conditions in an area
C. Environmental conditions within a small area that differs significantly from the climate of the surrounding area
D. Study of the world's climate
A. The time of day when the Sun is highest in the sky
B. The angle at which light from the Sun strikes the surface of Earth
C. The name of a constellation
D. The temperature of the Sun's surface
A. Right Ascension
B. Altitude
C. Azimuth
D. Declination
A. The maximum amount of water vapor that air can contain at a particular temperature
B. The minimum amount of water vapor that air can contain at a particular temperature
C. The average amount of water vapor in the air
D. The amount of water vapor needed to saturate the air
A. A method of diagnosing mental illness
B. A type of therapy
C. A powerful graphic representation of temperature and relative humidity.
D. A device that measures psychological attributes
A. The amount of heat needed to raise the temperature of one unit of dry air by one degree Celsius.
B. The air temperature measured by the dry-bulb thermometer of a psychrometer.
C. The air temperature measured by the wet-bulb thermometer of a psychrometer.
D. The maximum amount of heat that air can hold at a particular temperature.
A. The air temperature measured by the wet-bulb thermometer of a psychrometer.
B. It is apsychrometric measurement.
C. It is the humidity of the air.
D. It is the same as the air temperature.
A. The highest temperature at which dew can form.
B. The temperature at which water vapour in the air becomes saturated and condensation begins.
C. The lowest temperature at which dew can form.
D. A unit of measure for humidity.
A. The process of making something hot
B. The process of making something cold
C. Transfer of heat by the movement of molecules
D. Heat transfer in the form of electromagnetic waves, including light
A. A measure of the amount of work that can be done by a system
B. A state of matter
C. Energy that is transferred from one object to another
D. Energy that flows from a point at one temperature to another point at a lower temperature
A. The energy released or absorbed by a substance during a change of state that results in no change in temperature.
B. The energy required for phase changes
C. The energy released or absorbed by a system as the process of change occurs.
D. None of the above.
A. The product of the sensible and latent heat of a substance
B. The sum of the sensible and latent heat of a substance
C. The sum of the solid and liquid heat of a substance
D. The difference between the sensible and latent heat of a substance
A. Radiation
B. Absorption
C. Conduction
D. Convection
A. The ability of a material to conduct electricity.
B. A material's opposition to the flow of electric current.
C. A material's opposition to the flow of electric charges.
D. The physical force that opposes the flow of electrons in an electric circuit.
A. A device that is used to measure the thermal conductivity of a material
B. A material that has a low thermal conductivity and is used to insulate
C. A material that has a high thermal conductivity and is used to transfer heat
D. A thermally conductive material that bypasses an insulation system, such as a metal fastener or stud.
A. Fossil fuels
B. Electricity
C. Solar energy
D. Thermal Mass
A. The bringing in of fresh air to a building and the expelling of inside gasses.
B. The art of breathing
C. The study of air quality
D. The regulation of temperature
A. Condensation
B. Precipitation
C. Infiltration
D. Evaporation
A. A unit of measurement for heat
B. A factor used in calculating heating load
C. The study of heat transfer
D. Heat transferred from walls, doors, ceilings, etc.
A. Convection, conduction, radiation
B. Advection, abrasion, attrition
C. Both of these
D. None of these
A. Heat Receipt
B. Cooling
C. Heat Storage
D. Heat Loss
A. Heat Gain
B. Heat Loss
C. Heat Transfer
D. Heat
A. A system that uses energy to create work
B. Utilizing natural phenomena to change the climate of a building.
C. A machine that produces energy
D. Something that protects you from the sun
A. Direct Gain
B. Solar Energy Through Fenestration
C. Gain Through Fenestration
D. Indirect Gain
A. A pond consisting of water contained within large plastic bags located on the roof of a building.
B. A large body of water
C. A small body of water
D. A type of construction material
A. Heating, Ventilation, Air Cooling
B. Heating, Ventilation and Air Conditioning
C. High Volume Air Conditioning
D. Heavy Ventilation and Air Conditioning
A. Air handler
B. Plant
C. Central control unit
D. HVAC system
A. Equipment that provides hot water or steam for various uses (plumbing, heating, etc)
B. A device for cooking food
C. A device that generates electricity
D. A device used to measure pressure
A. Radiation
B. Boiling
C. Conduction
D. Vapor Compression Refrigeration Cycle
A. A device that creates heat.
B. A device that transfers energy from one substance to another.
C. A device that transfers heat from one object to another.
D. A device that transfers heat from one substance to another.
A. To clean the air
B. To regulate temperature
C. To recirculate treated air to the building
D. To provide fresh air
A. A system that uses electricity to transfer heat
B. A heating/cooling system that uses water to transfer heat
C. A system that uses solar panels to transfer heat
D. A dry cleaning system
A. A tube or channel for conducting electricity.
B. A tube or channel for conducting food.
C. A tube or channel for conducting water.
D. A tube or channel for conducting air.
A. High Volume Air Conditioning
B. Home Ventilation and Air Conditioning
C. Heating, Ventilating, and Air Conditioning
D. Hawaii Vacation and Air Conditioning
A. A device that delivers water to a space.
B. A device that delivers heat or cooling to the conditioned space.
C. A device that delivers food to a space.
D. A device that delivers air to a space.
A. A country
B. A central air-handling unit capable of serving 8 zones simultaneously
C. A city
D. A type of building
A. AHU and cooling compressor contained within a compact enclosure
B. A manufacturing company that produces only one product
C. A control system with one final control element per process variable
D. A company that organizes its work force into departments based on processes
A. The highest temperature
B. The lowest temperature.
C. The difference between the daily average temperature and a given temperature base.
D. The average temperature
A. By dividing expected yearly savings by the initial investment
B. By multiplying initial investment by expected yearly savings
C. By dividing initial investment by expected yearly savings
D. By taking the square root of the initial investment by expected yearly savings
A. Ability to adjust to various levels of light, see brightness of space in adaption level.
B. The act of modifying something to suit a particular purpose.
C. The process of acclimatization
D. The process of becoming accustomed to a new climate
A. Patterns of light and sound
B. Patterns of light and movement
C. Patterns of darkness and light
D. Patterns of light and shadow
A. Percieved light amanting from an object
B. The feeling of happiness and positivity
C. A measure of how well light reflects off an object
D. The distance from which an object is seen
A. Switching
B. Efficacy
C. Lamp Life
D. Lumen Maintenance
A. To provide general lighting
B. To provide light in specific areas for decoration
C. To provide light in specific areas for tasks
D. To provide light in specific areas for safety
A. Available Outdoor Illuminance
B. Daylighting Factor
C. LED
D. Interior Illuminance
A. Regular reflection of light
B. Reflection of light from a smooth surface
C. Mirrored reflection of light
D. Reflection of light from a rough surface in many directions
A. To reduce glare
B. For more energy-efficient lighting
C. For better lighting
D. For privacy and dramatic effect
A. Wind
B. Light sources
C. Objects in the way
D. The sun
A. High reflectance
B. High efficiency
C. Low energy
D. Adjustable
A. Something that impairs your vision if you have a disability
B. A type of specialneeds glasses
C. Luminance so intense that it impairs the vision.
D. When someone with a disability becomes angry