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200 Hour Inspector Course > Topic Quiz, 24-Hour HVAC Systems > Flashcards

Topic Quiz, 24-Hour HVAC Systems Flashcards

1
Q

SOP: Minimum Inspection Requirements for HVAC Systems

a. §535.228
b. §535.229
c. §535.230
d. §535.231

A

c. §535.230

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2
Q

[TEST QUESTION]
Where combustion-air is taken from under floor areas, the required free opening area to the outside shall be a minimum of _____ the required combustion air opening.

a. 1/2
b. 60%
c. 2X
d. 3X

A

c. 2X

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3
Q

[TEST QUESTION]
A ________ shuts off the flow of gas if the pilot light goes out.

a. Heat exchanger
b. Thermocoupler
c. Spark arrester
d. Flex Connectors

A

b. Thermocoupler

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4
Q

[TEST QUESTION]
The _____ is the heart of the A/C system.

a. Compressor
b. Evaporator Coil
c. Condenser Coil
d. Fan

A

a. Compressor

[CSRE, Book-3, Pg. 196]

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5
Q

[TEST QUESTION]
In rooms with supply registers, only the doors should be undercut at least ____ to allow air to reach the return registers.

a. 1/2’’
b. 5/8’’
c. 3/4’’
d. 1/3’’

A

c. 3/4’’

[CSRE, Book-3, Pg. 200]

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6
Q

[TEST QUESTION]
Where combustion air is taken from the attic, the combustion air opening shall be provided with a metal sleeve that extends from the appliance enclosure to a minimum height of ____ above the top of the ceiling joists & insulation.

a. 3’’
b. 4’’
c. 6’’
d. 12’’

A

c. 6’’

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7
Q

[TEST QUESTION]
What is the minimum required clearance between a type L-vent piping connector serving a SOLID FUEL appliance & any combustible materials?

a. 3’’
b. 6’’
c. 9’’
d. 18’’

A

c. 9’’

[IRC M1803.3.4, TABLE M1803.3.4]

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8
Q

[TEST QUESTION]
Solar energy systems shall be equipped with means to limit the maximum water temperature of the system fluid entering or exchanging heat with any pressurized vessel inside the dwelling to a maximum of _____.

a. 120F
b. 150F
c. 180F
d. 210F

A

c. 180F

[IRC M2301.2.9]

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9
Q

[TEST QUESTION]
Fuel-fired water heaters shall not be installed in a ____.

a. bathroom
b. bedroom
c. kitchen
d. storage closet

A

d. storage closet

[IRC M2005.2]

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10
Q

[TEST QUESTION]
PEX (Polyethylene) tubing used for hydronic piping shall be supported at maximum intervals of ___ when installed in a HORIZONTAL position.

a. 2’ 8’’ (2.67’)
b. 4’
c. 6’ 6’’ (6.5’)
d. 8’

A

a. 2’ 8’’ (2.67’)

[IRC M2101.9]

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11
Q

[TEST QUESTION]
In order for someone to service an appliance, a minimum of _____ of working space shall be provided in front of the control side of the appliance.

a. 24’’
b. 30’’
c. 36’’
d. 48’’

A

b. 30’’

[IRC M1305.1]

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12
Q

[TEST QUESTION]
A minimum ____ working space shall be provided along the front combustion chamber side of a furnace having a firebox open to the atmosphere.

a. 6’’
b. 12’’
c. 24’’
d. 30’’

A

a. 6’’

[IRC M1305.1.1]

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13
Q

[TEST QUESTION]
Where an appliance is installed in a compartment accessed by a passageway, the passageway shall have a minimum unobstructed width of ____, but not less than necessary to allow removal of the largest appliance in the space.

a. 24’’
b. 30’’
c. 36’’
d. 42’’

A

a. 24’’

[IRC M1305.1.3]

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14
Q

[TEST QUESTION]
Where an appliance is installed in an attic, the clear access opening shall be a minimum of ____, but in no case less than necessary to allow removal of the largest appliance.

a. 20’’ X 30’’
b. 22’’ X 30’’
c. 30’’ X 30’’
d. 36’’ X 36’’

A

b. 22’’ X 30’’

[IRC M1305.1.3]

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15
Q

[TEST QUESTION]
Appliances suspended from the floor shall have a minimum clearance of ____ from the ground.

a. 3’’
b. 4’’
c. 6’’
d. 8’’

A

c. 6’’

[IRC M1305.1.4.1]

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16
Q

[TEST QUESTION]
Excavations for appliance installations shall extend a minimum depth of ____ below the appliance with a minimum clearance of ____ on all sides except the control side.

a. 3’’, 6’’
b. 6’’, 6’’
c. 6’’, 12’’
d. 12’’, 12’’

A

c. 6’’, 12’’

[IRC M1305.1.4.2]

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17
Q

[TEST QUESTION]
Where an appliance with an ignition source is located in the garage, the source of the ignition shall be located a minimum of ____ above the garage floor.

a. 12’’
b. 18’’
c. 36’’
d. 48’’

A

b. 18’’

[IRC M1307.3]

18
Q

[TEST QUESTION]
The access opening through the foundation wall to a vented floor furnace shall have a minimum size of ____.

a. 18’’ X 24’’
b. 20’’ X 30’’
c. 22’’ X 30’’
d. 30’’ X 30’’

A

a. 18’’ X 24’’

[IRC M1408.4]

19
Q

[TEST QUESTION]
Where the lower 6’’ of a vented floor furnace is sealed to prevent water entry, a minimum ___ clearance shall be provided between the furnace & the ground.

a. 2’’
b. 3’’
c. 4’’
d. 6’’

A

a. 2’’

[IRC M1408.5(3)]

20
Q

[TEST QUESTION]
A minimum clearance of ____ shall be provided between the inlet or outlet of a vented wall furnace & a door at any point in it’s swing.

a. 6’’
b. 12’’
c. 18’’
d. 36’’

A

b. 12’’

[IRC M1409.2(2)]

21
Q

[TEST QUESTION]
Drain piping for refrigeration cooling equipment shall be a minimum of ____ nominal size.

a. 1/2’’
b. 3/4’’
c. 1’’
d. 1 1/2’’

A

b. 3/4’’

[IRC M1411.3.1]

22
Q

[TEST QUESTION]
Where an auxiliary drain pan with a separate drain is used for refrigeration cooling equipment, the minimum depth of the pan shall be _____.

a. 1’’
b. 1 1/2’’
c. 2’’
d. 3’’

A

b. 1 1/2’’

[IRC M1411.3.1]

23
Q

[TEST QUESTION]
Where an appliance is located in an under floor space, a minimum ____ level service space shall be provided at the front side of the appliance.

a. 30’’ X 30’’
b. 36’’ X 30’’
c. 36’’ X 36’’
d. 42’’ X 36’’

A

a. 30’’ X 30’’

[IRC M1305.1.4]

24
Q

[TEST QUESTION]
The required lower strapping for a water heater in Seismic Design Cat: D-1 & D-2, shall be located a minimum of ____ above the controls.

a. 3’’
b. 4’’
c. 6’’
d. 8’’

A

b. 4’’

[IRC M1307.2]

25
Q

[TEST QUESTION]
Where piping other than cast iron or galvanized steel is installed through bored holes of studs within a concealed wall space, steel shield plates are not required where the holes are a minimum of ____ from the nearest edge of the stud.

a. 1/4’’
b. 1 1/4’’
c. 1 3/8’’
d. 1 1/2’’

A

d. 1 1/2’’

[IRC M1308.2]

26
Q

[TEST QUESTION]
Unless listed for use on combustible floors without floor protection, a floor mounted room heater shall be located so that the non-combustible flooring extends a minimum of ____ beyond the appliance on all sides.

a. 12’’
b. 18’’
c. 24’’
d. 36’’

A

b. 18’’

[IRC M1410.2]

27
Q

[TEST QUESTION]
Exhaust ducts for clothes dryers shall NOT:

a. Extend to the exterior of the dwelling
b. Be connected with sheet metal screws
c. Be equipped with a backdraft damper
d. Be connected to flexible transition ducts

A

b. Be connected with sheet metal screws (best answer)
[IRC M1502.4.2]

“Ducts shall not be joined with screws or similar fasteners that protrude more than 1/8 inch into the inside of the duct.”

28
Q

[TEST QUESTION]
Unless modified by the manufacturer’s installation instructions, what is the maximum permitted length of a clothes dryer exhaust duct when measured from the dryer location to the wall or roof termination?

a. 18’
b. 20’
c. 25’
d. 30’

A

d. 30’
[IRC M1502.4.4.1]
(2012 & 2015 IRC Code indicate 35’)
c. 25’ (per Quizlet)

29
Q

[TEST QUESTION]
Unless modified by the manufacturer’s installation instructions or provided with a booster fan, what is the maximum permitted length of a clothes dryer exhaust duct that has (1) 90-deg bend & (2) 45-deg bends?

a. 25’
b. 20’
c. 17 1/2’
d. 15’

A

d. 15’

[IRC M1502.4.4.1]

30
Q

[TEST QUESTION]
Which of the following requirements is NOT applicable to a duct serving a range hood?

a. It shall have a smooth surface
b. It shall be air tight
c. It shall be equipped with a backdraft damper
d. It may terminate in a crawl space

A

d. It may terminate in a crawl space (best answer)
[IRC M1503.1]

“Exception: Where installed in accordance with the manufacturer’s installation instructions, and where mechanical or natural ventilation is otherwise provided, listed and labeled ductless range hoods shall not be required to discharge to the outdoors.”

31
Q

[TEST QUESTION]
When serving a domestic kitchen cooking appliance equipped with a down draft exhaust system, a schedule-40 PVC exhaust duct shall extend a maximum of ___ above grade outside the building.

a. 1’’
b. 6’’
c. 12’’
d. 36’’

A

a. 1’’

[IRC M1503.2(4)]

32
Q

[TEST QUESTION]
A 16’’ rectangular duct in an exposed location shall have a minimum equivalent galvanized sheet gauge of:

a. 22
b. 26
c. 28
d. 30

A

b. 26

[IRC TABLE M1601.1.1(2)]

33
Q

[TEST QUESTION]
Gypsum board may be used in the construction of a return air plenum, provided maximum air temperature is ____ & the exposed surfaces are not subject to condensation.

a. 125°F
b. 150°F
c. 180°F
d. 210°F

A

a. 125°F

[IRC M1601.1.1(5)]

34
Q

[TEST QUESTION]
Factory insulated flexible ducts shall be identified at maximum intervals of ____ with the name of the manufacturer, the thermal resistance R-value, the Flame-Spread Index & the Smoke Developed Index.

a. 3’
b. 5’
c. 6’
d. 10’

A

a. 3’ (36’’)

[IRC M1601.3 (Exc 3)

35
Q

[TEST QUESTION]
Where metal ducts are supported be 0.5’’ metal straps, the straps shall be minimum ____ & located a maximum of ____ on center.

a. 12 gauge, 6’
b. 18 gauge, 6’
c. 18 gauge, 10’
d. 22 gauge, 10’

A

c. 18 gauge, 10’

[IRC M1601.4.3]

36
Q

[TEST QUESTION]
Where the under floor space is used as a supply plenum, a duct shall extend from the furnace supply outlet to a minimum of _____ below the combustible framing.

a. 1’’
b. 3’’
c. 6’’
d. 8’’

A

c. 6’’

[IRC M1601.5.3]

37
Q

[TEST QUESTION]
Unless the discharge outlet is a minimum of ____ above the outside air inlet, outside air for a forced air heating system shall be taken a minimum of ____ from an appliance vent outlet, a vent opening from a plumbing drainage system, or the discharge outlet of an exhaust fan.

a. 2’, 6’
b. 2’, 10’
c. 3’ , 6’
d. 3’, 10’

A

d. 3’, 10’

[IRC M1602.2]

38
Q

[TEST QUESTION]
Which one of the following spaces is acceptable as a source for return air for a forced air heating system?

a. Sleeping room
b. Bathroom
c. Kitchen
d. Closet

A

a. Sleeping room

[IRC M1602.2 (Exp 4)]
Quizlet

39
Q

[TEST QUESTION]
A normal flame pattern is all of the following EXCEPT:

a. BLUE
b. STEADY
c. CLEARLY Defined
d. YELLOW Tipped

A

d. YELLOW Tipped

[CSRE, Book-3, Pg. 203]

40
Q

[TEST QUESTION]
A ______ separates the house air from the combustion products.

a. thermo coupler
b. heat exchanger
c. vent connector
d. draft hood

A

b. heat exchanger

[CSRE, Book-3, Pg. 204]
[Principles of Home Inspection, Systems & Standards, 3rd ed, Pg. 632-633]

41
Q

[TEST QUESTION]

Houses that are all electric have ____ service.

a. 120 amp
b. 150 amp
c. 210 amp
d. 200 amp

A

d. 200 amp

[CSRE, Book-3, Pg. 207]

200 Hour Inspector Course (14 decks)

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