12097647
Description
Quiz by Kaitlyn Hickey, updated more than 1 year ago
|
Created by Kaitlyn Hickey
almost 7 years ago
|
|
Question 1
Question
Which section of the CEC deals with installation of heating units
Answer
-
Section 12
-
Section 16
-
Section 46
-
Section 62
Question 2
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 the temperature of a pound of water 1C
-
Heat energy required to raise the temperature of a litre of water 1C
Question 3
Question
Heat transferred by electromagnetic wave motion by which we receive heat from the sun is through?
Answer
-
Conduction
-
Convection
-
Radiation
-
HVAC units
Question 4
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 or stack
Question 5
Question
A schematic diagram is used to
Answer
-
Demonstrate how electrical circuits work
-
Show the relative physical location of components
-
To wire a circuit
-
To find a control device
Question 6
Question
The function of the refrigeration cycle is to
Answer
-
Removes heat from low temperature body and delivers it to a high temperature body
-
Removes heat from a high temperature body and delivers it to a low temperature body
-
Rejects energy to low temperature body
-
None of the above
Question 7
Question
Which section of the CEC covers rules relating to disconnect switches for furnaces?
Answer
-
Section 12
-
Section 16
-
Section 28
-
Section 62
Question 8
Question
Which part of the HVAC system is responsible for compressing the Freon
Answer
-
Compressor
-
Condenser
-
Evaporator
-
TX valve
Question 9
Question
This type of compressor is completely sealed inside a metal housing and is not serviceable
Answer
-
Hermetic
-
Reciprocating
-
Scroll
-
Semi-hermetic
Question 10
Question
What substance is used in a heat cycle to transfer heat from one area, and remove it to another
Answer
-
Refrigerant
-
Neon
-
Vapor
-
Xenon
Question 11
Question
A conventional condenser unit requires a liquid refrigerant which is also called?
Answer
-
Freon
-
Hydrogen
-
Helium
-
Carbon dioxide
Question 12
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 13
Question
Two different pressures exist in the refrigeration cycle. 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 14
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 15
Question
To go from cooling source in a heat pump, what is required?
Answer
-
TRX valve
-
4 way reversing valve
-
Double pole thermostat
-
A disconnect switch
Question 16
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 17
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 18
Question
Refrigerant lines are usually made from
Answer
-
Aluminum
-
Stainless steel
-
Copper
-
Either a or c
Question 19
Question
Which part of a cooling system absorbs heat from the air?
Answer
-
Condenser
-
Evaporator
-
Compressor
-
Accumulator
Question 20
Question
Why is it necessary to have a heating element in a heat pump?
Answer
-
To eliminate condenser freezing
-
To protect against high outside temperature
-
To protect against low outside temperature
-
To provide heat for the room
Question 21
Question
Which statement indicates an acceptable method of supplying power to a 65,000 BTU gas fired hot water furnace?
Answer
-
Supply furnace from basement lighting
-
Supply furnace from nearest receptacle
-
Supply furnace from smoke detector circuit
-
Supply from dedicated circuit
Question 22
Question
What describes heat transfer from one metal to another in a heating system?
Answer
-
Conduction
-
Radiation
-
Convection
-
Evaporator
Question 23
Question
What type of evaporator coil is used in a heat pump?
Answer
-
Fin tube
-
Helical tube
-
Plate tube
-
Air bay pass tube
Question 24
Question
What does a shop drawing show?
Answer
-
Cost of components
-
Elevation of components
-
Logical operation of components
-
Electrical rating of components
Question 25
Question
What if the minimum current rating for a disconnect serving a motor compressor?
Answer
-
100% of the rate load current
-
115% of the rated load current
-
125% of the RLC
-
140% of the RLC
Question 26
Question
A high limit control in a gas furnace control is switched with a fan limit control. What is the result?
Answer
-
The burner will not ignite
-
The fan will cycle on and off
-
The burner won’t turn off
-
The fan won’t run
Question 27
Question
Which calculation determines the size of the overload fuses for motor compressor appliances?
Answer
-
100% of the rated load current
-
115% of the rated load current
-
125% of the RLC
-
140% of the RLC
Want to create your own Quizzes for free with GoConqr? Learn more.