Quiz
ER-2710 assignment
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Perguntas do quiz (24)
1Which device distributes heat via duct work through registers
- ABaseboard heater
- BUnit heater
- CElectric furnace
- DHeating cable swt
2What is installed directly in up flow vertical duct, or plenum that is intended to be the primary source of heat
- ADuct heater
- BPlenum heater
- CElectric furnace
- DDomestic water heater
3Which section of the CEC deals with installation of heating units?
- ASection 12
- BSection 16
- CSection 46
- DSection 62
4Temperature is a measure of
- AAverage kinetic energy in air
- BTotal amount of heat in a substance
- CAverage amount of heat in a substance
- DAn object’s thermal intensity
5A BTU is
- AHeat energy required to raise the temperature of a litre of water 1F
- BHeat energy required to raise the temperature of a pound of water 1F
- CHeat energy required to raise to raise the temperature of a pound of water 1C
- DHeat energy required to raise the temperature of a litre of water 1C
6Heat transferred by electromagnetic wave motion by which we receive heat from the sun is through?
- AConduction
- BConvection
- CRadiation
- DHVAC units
7The heat exchanger is a
- ASteel enclosure
- BEvaporator unit
- CCondenser unit
- DThermal expansion valve
8What is usually provided on the intake side of the fan in the return air system?
- ASupply plenum
- BPower supply filter
- CFilter
- DFlue of stack
9The function of the refrigeration cycle is to
- ARemoves heat from a low temp body delivers it to a high temp body
- BRemoves heat from a high temp body and delivers it to a low temp body
- CRejects energy to low temperature body
- DNone of the above
10Air conditioners and heat pumps cool a home by
- ABringing cool air into a home
- BRemoves heat from within a home
- CNeither one
11Which part of the HVAC system is responsible for compressing the Freon
- ACompressor
- BCondenser
- CEvaporator
- DTX Valve
12This type of compressor is completely sealed inside a metal housing and is not serviceable
- AHermetic
- BReciprocating
- CScroll
- DSemi-hermetic
13If the load on the evaporator changes, what type of valve can respond to the change and increase or decrease the flow accordingly
- AAutomatic shut-off valve
- BATV valve
- CTV Valve
- DTX valve
14What is a fluid that changes readily from a liquid to a vapour or from a vapour to a liquid?
- ARefrigerant
- BNeon
- CVapour
- DXenon
15A conventional condenser unit requires a liquid refrigerant which is also called?
- AFreon
- BHydrogen
- CHelium
- DCarbon dioxide
16What is the refrigerant state when it is going towards the condenser?
- ALow pressure
- BHigh pressure
- CDry vapour
- DTemperature vapour
17Which component pushes the hot gas to the finned condenser coil in the outdoor side of the air conditioner
- AControl valve
- BEvaporator thermal expansion valve
- CThe receiver
- DThe compressor
18Two different pressures exist in the refrigeration cycle. The two components that separate the high-pressure side from the low-pressure side are
- ACompressor and TRX valve
- BEvaporator coil and TRX valve
- CCondenser coil and compressor
- DCompressor and receiver
19In the cooling mode, what component is located inside the building?
- AThe Condenser coils
- BThe 4 way reversing valve
- CThe compressor
- DThe evaporator
20This law states that heat always from from a higher temperature to a lower temperature
- AOHM’s
- BNewton
- CThermodynamics
- DGay-Lussac’s
21The amount of heat added to the liquid to make it saturated and change states is called?
- ASuper heat
- BHeat energy
- CLatent heat
- DTransferred heat
22Heat, that when added or removed, causes a change in temperature but not in state
- ALatent heat
- BSensible heat
- CLow heat
- DEnergy heat
23Refrigerant lines are usually made from
- AAluminum
- BStainless steel
- CCooper
- DEither a and c
24What type of vents are usually used which can handle a wide range of temperatures?
- APlastic
- BMetal
- CAluminum
- DSteal
Informações
- Descrição
- Quiz on ER-2710, created by Kaitlyn Hickey on 03/02/2018.
- Autor
- Kaitlyn Hickey
- Idioma
- English
- Visualizações
- 56
- Histórico
- Criado em 3 fev 2018 · atualizado em 8 fev 2018
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