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BU - MECH-HVAC FLASHCARD

Total questions: 55

Worksheet time: 2hrs 50mins

Name
Class
Date
1.

The distribution or movement of air.

a)

HVAC

b)

Airflow

c)

Thermostat

d)

Upflow

2.

The process of treating air to control its temperature.

a)

HVAC

b)

Airflow

c)

Thermostat

d)

Upflow

3.

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.

a)

Centralized

b)

Split Type

c)

Window Air Conditioning Unit

d)

Multi-Split

4.

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.

a)

Centralized

b)

Split Type

c)

Window Air Conditioning Unit

d)

Multi-Split

5.

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.

a)

Refrigeration Unit

b)

Convection

c)

Evaporator

d)

Compressor

6.

Connects up to five indoor units to a single outdoor unit.

a)

WACU

b)

Multi-Split

c)

Split Type Air Conditioner

d)

Packaged Type Air Conditioner

7.

It compromises of two parts: the outdoor unit and the indoor unit.

a)

WACU

b)

Multi-Split

c)

Split Type Air Conditioner

d)

Packaged Type Air Conditioner

8.

Fitted outside the room, houses components like the compressor, condenser and expansion valve.

a)

Evaporator Side

b)

Indoor Unit

c)

Condenser Side

d)

Outdoor Unit

9.

Comprises the evaporator or cooling coil and the cooling fan.

a)

Evaporator Side

b)

Indoor Unit

c)

Condenser Side

d)

Outdoor Unit

10.

Compresses the refrigerant. The compressor receives low pressure gas from the evaporator and converts it to high pressure gas.

a)

Compressor

b)

Condenser

c)

Evaporator

d)

Expansion Valve

11.

Has a heat exchanger section to cool down and condense incoming refrigerant vapor into liquid.

a)

Compressor

b)

Condenser

c)

Evaporator

d)

Expansion Valve

12.

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.

a)

Compressor

b)

Condenser

c)

Evaporator

d)

Expansion Valve

13.

Removes pressire from the liquid refrigerant to allow expansion or change of state from a liquid to a vapor in the evaporator.

a)

Compressor

b)

Condenser

c)

Evaporator

d)

Expansion Valve

14.

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.

a)

Compressor

b)

Condenser

c)

Drier

d)

Expansion Valve

15.

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.

a)

Air Handling Unit (AHU)

b)

Split Type

c)

Multi-Split Type

d)

Cooling Tower

16.

It is a heat rejection device, which extracts waste heat to the atmosphere though the cooling of a water stream to a tower temperature.

a)

AHU

b)

Split Type

c)

Multi-Split Type

d)

Cooling Tower

17.

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.

a)

Draw-Through Type

b)

Suction Through Type

c)

Blow-Through Type

d)

Evaporation-Through Type

18.

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.

a)

Draw-Through Type

b)

Suction Through Type

c)

Blow-Through Type

d)

Evaporation-Through Type

19.

A type of condenser that uses air to produce chilled water.

a)

Air cooled Chiller

b)

Heater

c)

Water Cooled Chiller

d)

Chiller

20.

A type of condenser that uses water to produce chilled water.

a)

Air cooled Chiller

b)

Heater

c)

Water Cooled Chiller

d)

Chiller

21.

A machine that removes heat from a liquid via a vapor compression or absorption refrigeration cycle.

a)

Air cooled Chiller

b)

Heater

c)

Water Cooled Chiller

d)

Chiller

22.

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.

a)

Fan Coil Unit (FCU)

b)

Constant Air Volume (CAV)

c)

Variable Air Volume (VAV)

d)

Variable Refrigerant Volume (VRV/VRF)

23.

It is a type heating, ventilating, and/or air-conditioning (HVAC) system. The airflow varies at a constant temperature.

a)

Fan Coil Unit (FCU)

b)

Constant Air Volume (CAV)

c)

Variable Air Volume (VAV)

d)

Variable Refrigerant Volume (VRV/VRF)

24.

Water droplets that are carried out of the cooling tower with the exhaust air.

a)

Drift

b)

Blow-Out

c)

Plume

d)

Blow-Down

25.

Water droplets blown out of the cooling tower by wind, generally at the air inlet openings.

a)

Drift

b)

Blow-Out

c)

Plume

d)

Blow-Down

26.

The stream of saturated exhaust air leaving the cooling tower.

a)

Drift

b)

Blow-Out

c)

Plume

d)

Blow-Down

27.

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.

a)

Drift

b)

Blow-Out

c)

Plume

d)

Blow-Down

28.

The loss of wood preservative chemicals by the washing action of the water flowing through a wood structure cooling tower.

a)

Drift

b)

Leaching

c)

Plume

d)

Noise

29.

Sound energy emitted by a cooling tower and heard at a given distance and direction.

a)

Drift

b)

Leaching

c)

Plume

d)

Noise

30.

Device consists of heating/and or cooling heat exchanger or coil and fan.

a)

Air Handling Unit (AHU)

b)

Split Type

c)

Fan Coil Unit (FCU)

d)

Cooling Tower

31.

it is a multi-split type air conditioner for commercial buildings that uses variable refrigerant flow control developed by daikin.

a)

Fan Coil Unit (FCU)

b)

Constant Air Volume (CAV)

c)

Variable Air Volume (VAV)

d)

Variable Refrigerant Volume (VRV/VRF)

32.

Usually made of galvanized metal sheet or aluminum sheets usually rectangular depending on the aspect ratio, not to exceed 5:1

a)

Propeller or Axial

b)

Ducts

c)

Air Outlets

d)

Centrifugal

33.

Intended for moving air at comparatively high and are commonly used in duct system.

a)

Propeller or Axial

b)

Ducts

c)

Air Outlets

d)

Centrifugal

34.

Commonly used for wall exhaust.

a)

Propeller or Axial

b)

Ducts

c)

Air Outlets

d)

Centrifugal

35.

Wall and ceiling diffuser.

a)

Thermostat

b)

Humidistat

c)

Air Outlets

d)

Pressure Regulator

36.

Sensitive to the amount of humidity in the air.

a)

Thermostat

b)

Humidistat

c)

Dampers

d)

Pressure Regulator

37.

Controller which responds to change in temperature.

a)

Thermostat

b)

Humidistat

c)

Dampers

d)

Pressure Regulator

38.

Sensitive to changes in pressure.

a)

Thermostat

b)

Humidistat

c)

Dampers

d)

Pressure Regulator

39.

Control the flow of air and are in form of louvers.

a)

Thermostat

b)

Humidistat

c)

Dampers

d)

Pressure Regulator

40.

What part of a split type is number 1?

a)

Compressor

b)

Condenser

c)

Evaporator

d)

Accumulator

41.

What part of a split type is number 2?

a)

Compressor

b)

Condenser

c)

Evaporator

d)

Accumulator

42.

What part of a split type is number 3?

a)

Expansion Valve

b)

Compressor

c)

Evaporator

d)

Drier

43.

What part of a split type is number 4?

a)

Expansion Valve

b)

Compressor

c)

Evaporator

d)

Drier

44.

What part of a split type is number 5?

a)

Expansion Valve

b)

Compressor

c)

Evaporator

d)

Drier

45.

What type of HVAC is this?

a)

Split Type

b)

Cassette Type

c)

Window Type

d)

Floor Type

46.

What type of HVAC is this?

a)

Split Type

b)

Centralized Type

c)

Window Type

d)

Floor Type

47.

What type of HVAC is this?

a)

Split Type

b)

Centralized Type

c)

Window Type

d)

Floor Standing Type

48.

What type of HVAC is this?

a)

Split Type

b)

Centralized Type

c)

Window Type

d)

Floor Standing Type

49.

What type of HVAC is this?

a)

Split Type

b)

Centralized Type

c)

Window Type

d)

Floor Standing Type

50.

What type of fan is this?

a)

Drift

b)

Propeller or Axial

c)

Plume

d)

Centrifugal

51.

What type of fan is this?

a)

Drift

b)

Propeller or Axial

c)

Plume

d)

Centrifugal

52.

What type of diffuser is this?

a)

Multi-Directional Diffuser

b)

Round Jet Diffuser

c)

Round Poly Diffuser

d)

Side Wall Register

53.

What type of diffuser is this?

a)

Multi-Directional Diffuser

b)

Round Jet Diffuser

c)

Round Poly Diffuser

d)

Side Wall Register

54.

What type of diffuser is this?

a)

Multi-Directional Diffuser

b)

Round Jet Diffuser

c)

Round Poly Diffuser

d)

Side Wall Register

55.

What type of diffuser is this?

a)

Multi-Directional Diffuser

b)

Round Jet Diffuser

c)

Round Poly Diffuser

d)

Side Wall Register