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WorksheetsBU - MECH-HVAC FLASHCARD
Total questions: 55
Worksheet time: 2hrs 50mins
The distribution or movement of air.
HVAC
Airflow
Thermostat
Upflow
The process of treating air to control its temperature.
HVAC
Airflow
Thermostat
Upflow
Referred to as room are conditioner is the simplest form of an air conditioning system and is mounted in windows or walls. It is a single unit that is assembled in a casing where all the components are located.
Centralized
Split Type
Window Air Conditioning Unit
Multi-Split
Referred to as room are conditioner is the simplest form of an air conditioning system and is mounted in windows or walls. It is a single unit that is assembled in a casing where all the components are located.
Centralized
Split Type
Window Air Conditioning Unit
Multi-Split
It has a double shaft fan motor with fans mounted on both sides of the motor. One at the evaporator side and the other at the condenser side.
Refrigeration Unit
Convection
Evaporator
Compressor
Connects up to five indoor units to a single outdoor unit.
WACU
Multi-Split
Split Type Air Conditioner
Packaged Type Air Conditioner
It compromises of two parts: the outdoor unit and the indoor unit.
WACU
Multi-Split
Split Type Air Conditioner
Packaged Type Air Conditioner
Fitted outside the room, houses components like the compressor, condenser and expansion valve.
Evaporator Side
Indoor Unit
Condenser Side
Outdoor Unit
Comprises the evaporator or cooling coil and the cooling fan.
Evaporator Side
Indoor Unit
Condenser Side
Outdoor Unit
Compresses the refrigerant. The compressor receives low pressure gas from the evaporator and converts it to high pressure gas.
Compressor
Condenser
Evaporator
Expansion Valve
Has a heat exchanger section to cool down and condense incoming refrigerant vapor into liquid.
Compressor
Condenser
Evaporator
Expansion Valve
Absorbs heat into the system, to allow a compressed cooling chemical to evaporate from liquid to gas while gaining a certain amount of heat in the process.
Compressor
Condenser
Evaporator
Expansion Valve
Removes pressire from the liquid refrigerant to allow expansion or change of state from a liquid to a vapor in the evaporator.
Compressor
Condenser
Evaporator
Expansion Valve
A filter-drier in a refrigeration or air conditioning system has two essential functions: one, to absorb system contaminants, such as water, which can create acids, and two to provide physical filtration.
Compressor
Condenser
Drier
Expansion Valve
A complex component of an HVAC system that has many different parts used to complete its function. It accomplishes many different tasks, including transporting outside air as it is often connected directly to the ductwork throughout the indoor space.
Air Handling Unit (AHU)
Split Type
Multi-Split Type
Cooling Tower
It is a heat rejection device, which extracts waste heat to the atmosphere though the cooling of a water stream to a tower temperature.
AHU
Split Type
Multi-Split Type
Cooling Tower
A type of AHU where the fan pulls the air through the mixing box, filters and cooling coil before discharging it from the fan outlet to the space to be conditioned or to the ducting network.
Draw-Through Type
Suction Through Type
Blow-Through Type
Evaporation-Through Type
A type of AHU where the fan blows the air through the mixing box, filters and cooling coil before discharging them to the space being conditioned or the ducting system.
Draw-Through Type
Suction Through Type
Blow-Through Type
Evaporation-Through Type
A type of condenser that uses air to produce chilled water.
Air cooled Chiller
Heater
Water Cooled Chiller
Chiller
A type of condenser that uses water to produce chilled water.
Air cooled Chiller
Heater
Water Cooled Chiller
Chiller
A machine that removes heat from a liquid via a vapor compression or absorption refrigeration cycle.
Air cooled Chiller
Heater
Water Cooled Chiller
Chiller
A distribution system that uses a constant supply air volume through the distribution system while heating or cooling the air to meet the spaces needs.
Fan Coil Unit (FCU)
Constant Air Volume (CAV)
Variable Air Volume (VAV)
Variable Refrigerant Volume (VRV/VRF)
It is a type heating, ventilating, and/or air-conditioning (HVAC) system. The airflow varies at a constant temperature.
Fan Coil Unit (FCU)
Constant Air Volume (CAV)
Variable Air Volume (VAV)
Variable Refrigerant Volume (VRV/VRF)
Water droplets that are carried out of the cooling tower with the exhaust air.
Drift
Blow-Out
Plume
Blow-Down
Water droplets blown out of the cooling tower by wind, generally at the air inlet openings.
Drift
Blow-Out
Plume
Blow-Down
The stream of saturated exhaust air leaving the cooling tower.
Drift
Blow-Out
Plume
Blow-Down
The portion of the circulating water flow that is removed in order to maintain the amount of dissolved solids and other impurities at an acceptable level.
Drift
Blow-Out
Plume
Blow-Down
The loss of wood preservative chemicals by the washing action of the water flowing through a wood structure cooling tower.
Drift
Leaching
Plume
Noise
Sound energy emitted by a cooling tower and heard at a given distance and direction.
Drift
Leaching
Plume
Noise
Device consists of heating/and or cooling heat exchanger or coil and fan.
Air Handling Unit (AHU)
Split Type
Fan Coil Unit (FCU)
Cooling Tower
it is a multi-split type air conditioner for commercial buildings that uses variable refrigerant flow control developed by daikin.
Fan Coil Unit (FCU)
Constant Air Volume (CAV)
Variable Air Volume (VAV)
Variable Refrigerant Volume (VRV/VRF)
Usually made of galvanized metal sheet or aluminum sheets usually rectangular depending on the aspect ratio, not to exceed 5:1
Propeller or Axial
Ducts
Air Outlets
Centrifugal
Intended for moving air at comparatively high and are commonly used in duct system.
Propeller or Axial
Ducts
Air Outlets
Centrifugal
Commonly used for wall exhaust.
Propeller or Axial
Ducts
Air Outlets
Centrifugal
Wall and ceiling diffuser.
Thermostat
Humidistat
Air Outlets
Pressure Regulator
Sensitive to the amount of humidity in the air.
Thermostat
Humidistat
Dampers
Pressure Regulator
Controller which responds to change in temperature.
Thermostat
Humidistat
Dampers
Pressure Regulator
Sensitive to changes in pressure.
Thermostat
Humidistat
Dampers
Pressure Regulator
Control the flow of air and are in form of louvers.
Thermostat
Humidistat
Dampers
Pressure Regulator
What part of a split type is number 1?
Compressor
Condenser
Evaporator
Accumulator
What part of a split type is number 2?
Compressor
Condenser
Evaporator
Accumulator
What part of a split type is number 3?
Expansion Valve
Compressor
Evaporator
Drier
What part of a split type is number 4?
Expansion Valve
Compressor
Evaporator
Drier
What part of a split type is number 5?
Expansion Valve
Compressor
Evaporator
Drier
What type of HVAC is this?
Split Type
Cassette Type
Window Type
Floor Type
What type of HVAC is this?
Split Type
Centralized Type
Window Type
Floor Type
What type of HVAC is this?
Split Type
Centralized Type
Window Type
Floor Standing Type
What type of HVAC is this?
Split Type
Centralized Type
Window Type
Floor Standing Type
What type of HVAC is this?
Split Type
Centralized Type
Window Type
Floor Standing Type
What type of fan is this?
Drift
Propeller or Axial
Plume
Centrifugal
What type of fan is this?
Drift
Propeller or Axial
Plume
Centrifugal
What type of diffuser is this?
Multi-Directional Diffuser
Round Jet Diffuser
Round Poly Diffuser
Side Wall Register
What type of diffuser is this?
Multi-Directional Diffuser
Round Jet Diffuser
Round Poly Diffuser
Side Wall Register
What type of diffuser is this?
Multi-Directional Diffuser
Round Jet Diffuser
Round Poly Diffuser
Side Wall Register
What type of diffuser is this?
Multi-Directional Diffuser
Round Jet Diffuser
Round Poly Diffuser
Side Wall Register
