Kaitlyn Hickey
Quiz by , created more than 1 year ago

Quiz on ER-2710, created by Kaitlyn Hickey on 03/02/2018.

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Kaitlyn Hickey
Created by Kaitlyn Hickey over 6 years ago
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ER-2710 assignment

ER-2710 assignment

Question 1 of 24

1

Which device distributes heat via duct work through registers

Select one of the following:

  • Baseboard heater

  • Unit heater

  • Electric furnace

  • Heating cable swt

Explanation

Question 2 of 24

1

What is installed directly in up flow vertical duct, or plenum that is intended to be the primary source of heat

Select one of the following:

  • Duct heater

  • Plenum heater

  • Electric furnace

  • Domestic water heater

Explanation

Question 3 of 24

1

Which section of the CEC deals with installation of heating units?

Select one of the following:

  • Section 12

  • Section 16

  • Section 46

  • Section 62

Explanation

Question 4 of 24

1

Temperature is a measure of

Select one of the following:

  • Average kinetic energy in air

  • Total amount of heat in a substance

  • Average amount of heat in a substance

  • An object’s thermal intensity

Explanation

Question 5 of 24

1

A BTU is

Select one of the following:

  • Heat energy required to raise the temperature of a litre of water 1F

  • Heat energy required to raise the temperature of a pound of water 1F

  • Heat energy required to raise to raise the temperature of a pound of water 1C

  • Heat energy required to raise the temperature of a litre of water 1C

Explanation

Question 6 of 24

1

Heat transferred by electromagnetic wave motion by which we receive heat from the sun is through?

Select one of the following:

  • Conduction

  • Convection

  • Radiation

  • HVAC units

Explanation

Question 7 of 24

1

The heat exchanger is a

Select one of the following:

  • Steel enclosure

  • Evaporator unit

  • Condenser unit

  • Thermal expansion valve

Explanation

Question 8 of 24

1

What is usually provided on the intake side of the fan in the return air system?

Select one of the following:

  • Supply plenum

  • Power supply filter

  • Filter

  • Flue of stack

Explanation

Question 9 of 24

1

The function of the refrigeration cycle is to

Select one of the following:

  • Removes heat from a low temp body delivers it to a high temp body

  • Removes heat from a high temp body and delivers it to a low temp body

  • Rejects energy to low temperature body

  • None of the above

Explanation

Question 10 of 24

1

Air conditioners and heat pumps cool a home by

Select one of the following:

  • Bringing cool air into a home

  • Removes heat from within a home

  • Neither one

Explanation

Question 11 of 24

1

Which part of the HVAC system is responsible for compressing the Freon

Select one of the following:

  • Compressor

  • Condenser

  • Evaporator

  • TX Valve

Explanation

Question 12 of 24

1

This type of compressor is completely sealed inside a metal housing and is not serviceable

Select one of the following:

  • Hermetic

  • Reciprocating

  • Scroll

  • Semi-hermetic

Explanation

Question 13 of 24

1

If the load on the evaporator changes, what type of valve can respond to the change and increase or decrease the flow accordingly

Select one of the following:

  • Automatic shut-off valve

  • ATV valve

  • TV Valve

  • TX valve

Explanation

Question 14 of 24

1

What is a fluid that changes readily from a liquid to a vapour or from a vapour to a liquid?

Select one of the following:

  • Refrigerant

  • Neon

  • Vapour

  • Xenon

Explanation

Question 15 of 24

1

A conventional condenser unit requires a liquid refrigerant which is also called?

Select one of the following:

  • Freon

  • Hydrogen

  • Helium

  • Carbon dioxide

Explanation

Question 16 of 24

1

What is the refrigerant state when it is going towards the condenser?

Select one of the following:

  • Low pressure

  • High pressure

  • Dry vapour

  • Temperature vapour

Explanation

Question 17 of 24

1

Which component pushes the hot gas to the finned condenser coil in the outdoor side of the air conditioner

Select one of the following:

  • Control valve

  • Evaporator thermal expansion valve

  • The receiver

  • The compressor

Explanation

Question 18 of 24

1

Two different pressures exist in the refrigeration cycle. The two components that separate the high-pressure side from the low-pressure side are

Select one of the following:

  • Compressor and TRX valve

  • Evaporator coil and TRX valve

  • Condenser coil and compressor

  • Compressor and receiver

Explanation

Question 19 of 24

1

In the cooling mode, what component is located inside the building?

Select one of the following:

  • The Condenser coils

  • The 4 way reversing valve

  • The compressor

  • The evaporator

Explanation

Question 20 of 24

1

This law states that heat always from from a higher temperature to a lower temperature

Select one of the following:

  • OHM’s

  • Newton

  • Thermodynamics

  • Gay-Lussac’s

Explanation

Question 21 of 24

1

The amount of heat added to the liquid to make it saturated and change states is called?

Select one of the following:

  • Super heat

  • Heat energy

  • Latent heat

  • Transferred heat

Explanation

Question 22 of 24

1

Heat, that when added or removed, causes a change in temperature but not in state

Select one of the following:

  • Latent heat

  • Sensible heat

  • Low heat

  • Energy heat

Explanation

Question 23 of 24

1

Refrigerant lines are usually made from

Select one of the following:

  • Aluminum

  • Stainless steel

  • Cooper

  • Either a and c

Explanation

Question 24 of 24

1

What type of vents are usually used which can handle a wide range of temperatures?

Select one of the following:

  • Plastic

  • Metal

  • Aluminum

  • Steal

Explanation

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