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ER-2710 assignment

Description

Quiz on ER-2710, created by Kaitlyn Hickey on 03/02/2018.
Kaitlyn Hickey
Quiz by Kaitlyn Hickey, updated more than 1 year ago
Kaitlyn Hickey
Created by Kaitlyn Hickey about 6 years ago
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Resource summary

Question 1

Question
Which device distributes heat via duct work through registers
Answer
  • Baseboard heater
  • Unit heater
  • Electric furnace
  • Heating cable swt

Question 2

Question
What is installed directly in up flow vertical duct, or plenum that is intended to be the primary source of heat
Answer
  • Duct heater
  • Plenum heater
  • Electric furnace
  • Domestic water heater

Question 3

Question
Which section of the CEC deals with installation of heating units?
Answer
  • Section 12
  • Section 16
  • Section 46
  • Section 62

Question 4

Question
Temperature is a measure of
Answer
  • Average kinetic energy in air
  • Total amount of heat in a substance
  • Average amount of heat in a substance
  • An object’s thermal intensity

Question 5

Question
A BTU is
Answer
  • 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

Question 6

Question
Heat transferred by electromagnetic wave motion by which we receive heat from the sun is through?
Answer
  • Conduction
  • Convection
  • Radiation
  • HVAC units

Question 7

Question
The heat exchanger is a
Answer
  • Steel enclosure
  • Evaporator unit
  • Condenser unit
  • Thermal expansion valve

Question 8

Question
What is usually provided on the intake side of the fan in the return air system?
Answer
  • Supply plenum
  • Power supply filter
  • Filter
  • Flue of stack

Question 9

Question
The function of the refrigeration cycle is to
Answer
  • 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

Question 10

Question
Air conditioners and heat pumps cool a home by
Answer
  • Bringing cool air into a home
  • Removes heat from within a home
  • Neither one

Question 11

Question
Which part of the HVAC system is responsible for compressing the Freon
Answer
  • Compressor
  • Condenser
  • Evaporator
  • TX Valve

Question 12

Question
This type of compressor is completely sealed inside a metal housing and is not serviceable
Answer
  • Hermetic
  • Reciprocating
  • Scroll
  • Semi-hermetic

Question 13

Question
If the load on the evaporator changes, what type of valve can respond to the change and increase or decrease the flow accordingly
Answer
  • Automatic shut-off valve
  • ATV valve
  • TV Valve
  • TX valve

Question 14

Question
What is a fluid that changes readily from a liquid to a vapour or from a vapour to a liquid?
Answer
  • Refrigerant
  • Neon
  • Vapour
  • Xenon

Question 15

Question
A conventional condenser unit requires a liquid refrigerant which is also called?
Answer
  • Freon
  • Hydrogen
  • Helium
  • Carbon dioxide

Question 16

Question
What is the refrigerant state when it is going towards the condenser?
Answer
  • Low pressure
  • High pressure
  • Dry vapour
  • Temperature vapour

Question 17

Question
Which component pushes the hot gas to the finned condenser coil in the outdoor side of the air conditioner
Answer
  • Control valve
  • Evaporator thermal expansion valve
  • The receiver
  • The compressor

Question 18

Question
Two different pressures exist in the refrigeration cycle. The two components that separate the high-pressure side from the low-pressure side are
Answer
  • Compressor and TRX valve
  • Evaporator coil and TRX valve
  • Condenser coil and compressor
  • Compressor and receiver

Question 19

Question
In the cooling mode, what component is located inside the building?
Answer
  • The Condenser coils
  • The 4 way reversing valve
  • The compressor
  • The evaporator

Question 20

Question
This law states that heat always from from a higher temperature to a lower temperature
Answer
  • OHM’s
  • Newton
  • Thermodynamics
  • Gay-Lussac’s

Question 21

Question
The amount of heat added to the liquid to make it saturated and change states is called?
Answer
  • Super heat
  • Heat energy
  • Latent heat
  • Transferred heat

Question 22

Question
Heat, that when added or removed, causes a change in temperature but not in state
Answer
  • Latent heat
  • Sensible heat
  • Low heat
  • Energy heat

Question 23

Question
Refrigerant lines are usually made from
Answer
  • Aluminum
  • Stainless steel
  • Cooper
  • Either a and c

Question 24

Question
What type of vents are usually used which can handle a wide range of temperatures?
Answer
  • Plastic
  • Metal
  • Aluminum
  • Steal
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