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Cash Van Ness Flashcards

1
Q

The following is accurate information on age and capacity data (national averages).
Exterior condenser/compressor units typically last about 10 years, air-source heat pumps last about 8-10 years, and geothermal heat pump equipment 10-15 years.
Exterior condenser/compressor units typically last about 15 years, air-source heat pumps last about 12-14 years, and geothermal heat pump equipment 20-25 years.
Exterior condenser/compressor units typically last about 10 years, air-source heat pumps last about 12-14 years, and geothermal heat pump equipment 10-15 years.
Exterior condenser/compressor units typically last about 15 years, air-source heat pumps last about 8-10 years, and geothermal heat pump equipment 10-15 years.
Exterior condenser/compressor units typically last about 10 years, air-source heat pumps last about 8-10 years, and geothermal heat pump equipment 20-25 years.

A

Exterior condenser/compressor units typically last about 15 years, air-source heat pumps last about 12-14 years, and geothermal heat pump equipment 20-25 years.

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2
Q

Which of the following is not an appropriate action when a line-set is frozen in an A/C unit you are inspecting?
The unit should be turned off immediately.
It is not appropriate for you to share this information with any real estate agents.
If they are not at home, leave a note.
Suggest that the client get the equipment serviced before it fails.
Ask the client for permission to talk to the current owner about this.

A

It is not appropriate for you to share this information with any real estate agents.

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3
Q

A single-wall vent connector at the furnace needs at least
Six inches of clearance from combustibles.
Eight inches of clearance from combustibles.
Ten inches of clearance from combustibles.
Twelve inches of clearance from combustibles.
Eighteen inches of clearance from combustibles.

A

A single-wall vent connector at the furnace needs at least
Six inches of clearance from combustibles.

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4
Q

When you arrive at the home, the unit is off. What is the minimum amount of time the unit should operate before testing temperature drop?
5-10 minutes
10-15 minutes
15-20 minutes
30 minutes
60 minutes

A

5-10 minutes

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5
Q

The 2-inch diameter of ductwork in a hi-V system typically needs a minimum length of ________ and a maximum length of ________. It needs to be at least ________ long to act as a muffler.
3 feet, 15 feet, 3 feet
4 feet 20 feet, 4 feet
5 feet, 25 feet, 5 feet
6 feet, 30 feet, 6 feet
7 feet, 35 feet, 7 feet

A

6 feet, 30 feet, 6 feet

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6
Q

When inspecting a heat pump which of the following is NOT a concern?
The owner uses the emergency heat setting instead of running the heat pump.
The heat pump is installed on the rooftop.
The heat pump is located directly below a roof ridge.
The heat pump is underneath the drip line of the gutters.
The heat pump is protected from prevailing winds.

A

The owner uses the emergency heat setting instead of running the heat pump.

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7
Q

An unrestricted heat pump unit can still provide some heat down to _______ below 0.
10 degrees
15 degrees
20 degrees
25 degrees
30 degrees

A

10 degrees

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8
Q

Life expectancy of a geothermal unit is approximately _____
10-15 years
15-20 years
20-25 years
25-30 years
30+ years

A

20-25 years

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9
Q

The maximum supply air temperature from a geothermal system in healing mode is about 125 degrees, but more typically, it operates at somewhere between _________ and _______ degrees.
70 and 85
75 and 80
80 and 85
85 and 95
95 and 100

A

85 and 95

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10
Q

A service lateral must be protected by either a metal conduit or a schedule _____ to a depth of ____below grade.
60 RNC, 12 inches
60 RNC, 18 inches
70 RNC, 12 inches
80 RNC, 18 inches
80 RNC, 2 feet

A

80 RNC, 18 inches

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11
Q

In front of any panel or disconnect, there needs to be _____ clear minimum measured from the outer cover of the panel and ____ clear space side to side for the panel.
42 and 36
40 and 34
36 and 30
30 and 24
24 and 18

A

36 and 30

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12
Q

On average, a silicon-based photovoltaic cell produces about ____ at half volt and ___ amps.
5 watts, 10 amps
5 watts, 15 amps
10 watts, 15 amps
10 watts, 20 amps
15 watts, 20 amps

A

5 watts, 10 amps

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13
Q

Based on the National Fire Protection Association (NFPA), using what they tell us is unconfined space, calculate the required minimum cubic feet for a 100,000 BTU furnace with a 34,000 BTU water heater right next to it.
5,700 cubic feet
6,700 cubic feet
7,600 cubic feet
8,600 cubic feet
8,700 cubic feet

A

6,700 cubic feet (

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14
Q

When performing a visual check of gauges for a circulated boiler, the pressure on the gauge should read about _____ at room temperature.
6 pounds
8 pounds
10 pounds
12 pounds
14 pounds

A

12 pounds

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15
Q

When inspecting hot steam boilers for basic operation sequences, it is recommended to let the heating equipment operate for at least ____
5 minutes
10 minutes
12 minutes
15 minutes
15+ minutes

A

5 minutes

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16
Q

Unlisted, meaning older wood stoves, need at least _____ of clearance to combustibles, even with the best clearance reduction systems as specified by NFPA 211.
6 inches
10 inches
12 inches
15 inches
18 inches

A

12 inches

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17
Q

Which of the following plumbing supply piping is for radiant heat only?
Chlorinated Polyvinyl chloride (CPVC)
Chlorinated chloride (PC)
Polybutylene (PB)
Cross-linked polyethylene (PEX)
HePEX

A

HePEX

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18
Q

For tankless water heaters, NFPA 54 requires two openings with ______ net free area of air per 1,000 btu/hr of gas input.
½ inch
1 inch
1 ½ inch
2 inches
3 inches

A

1 inch

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19
Q

Steel plate protection is required in a wall if the pipping is less than _____ from the face of framing.
½ inch
¾ inch
1 inch
1 ½ inch
2 inches

A

1 inch

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20
Q

When inspecting crawl spaces in a home and identifying rotted wood or materials, do not use the word rot. The correct terminology for your report is _______.
Deteriorated wood or materials (DWM)
Decomposed wood or materials (DCWM)
Eroded wood or materials (EWM)
Wood destroying organisms (WDO)
Wood damaged or decayed (WDD)

A

Wood destroying organisms (WDO)

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21
Q

If the relative humidity in a crawl space is consistently above_____ then dehumidification is recommended.
45%
50%
55%
60%
65%

A

55%

22
Q

Which type of insulation can be found in older homes, is not used in the United States anymore, and has a low R-value of 2.13?
Fiberglass
Rockwool Batts
Cellulose
Vermiculite
Asbestos

A

Vermiculite

23
Q

Polyisocyanurate insulation is foil-faced making it a good thermal radiant barrier, and has an R-value of ____ per inch.
4.2
5.2
6.7
7.2
8.2

A

7.2

24
Q

Low density spray foam insulation’s R-value starts at _____ per inch.
2.6
3.6
4.6
5.6
6.6

A

3.6

25
Q

What is the “typical” efficiency rating for permanently-split capacitor motors?
75%
80%
85%
90%
95%

A

90%

26
Q

The American Society of Heating, Refrigeration, and Air Conditioning Engineers (ASHRA) say that the living area of a home should be ventilated at a rate of _____ air change per hour, or ________ per minute per person, whichever is greater. Depending on the climate, that is a complete change of air about every three hours.
0.25, 10 cubic feet
0.27, 12 cubic feet
0.32, 13 cubic feet
0.35, 15 cubic feet
.037, 17 cubic feet

A

0.35, 15 cubic feet

27
Q

Which type of ventilation system has two fans and two duct systems and is pretty much the dominant type of system available today?
Closed ventilation systems
Open ventilation systems
Supply ventilation systems
Exhaust ventilation systems
Balanced ventilation systems

A

Balanced ventilation systems

28
Q

Some pool codes require one skimmer for every __________ of pool surface water.
200 square feet
300 square feet
400 square feet
500 square feet
600 square feet

A

500 square feet

29
Q

For pool PVC piping that is running above the ground and under a deck, the pipes will require support every _________________.
3 to 5 feet
4 to 6 feet
5 to 7 feet
6 to 8 feet
7 to 9 feet

A

6 to 8 feet

30
Q

Which of the following irrigation budget calculation formulas is used for turfgrass inches?
(ETo x Kc)/DU = (5.0 x 0.8)/0.7 = 5.7 inches x 50% = 2.9 inches
(ETo x Kc)/DU = (5.0 x 0.8)/0.7 = 5.7 inches x 50% = 2.5 inches
(ETo x PF)/DU = (5.0 x 0.5)/0.8 = 3.1 inches x 40% = 2.3 inches
(ETo x PF)/DU = (5.0 x 0.5)/0.8 = 3.1 inches x 40% = 1.2 inches
(ETo x PF)/DU = (5.0 x 1.0)/0.6 = 8.3 inches x 10% = 0.8 inches

A

(ETo x Kc)/DU = (5.0 x 0.8)/0.7 = 5.7 inches x 50% = 2.9 inches

31
Q

Which of the following are NOT considered physical problems with irrigation systems?
Broken heads or nozzles
Not similar and uneven spacing
High head drainage
Spray pattern blocked
Sunken heads

A

High head drainage

32
Q

What is the correct formula for calculating the average precipitation rate (PR)?
PR(IN/HR) = Average Gallons Per Minute (GPM) per head x they Average head spacing in square inches
PR(IN/HR) = Average (GPM) per head divided by Average head spacing in square feet
PR(IN/HR) = Average (GPM) per head divided by Average head spacing in square inches
PR(IN/HR) = Average Gallons Per Minute (GPM) per head divided by Average multi-stream rotors spacing in square inches
PR(IN/HR) = Average Gallons Per Minute (GPM) per head X the Average multi-stream rotors spacing in square feet

A

PR(IN/HR) = Average (GPM) per head divided by Average head spacing in square feet

33
Q

Record individual catch can volumes in ___________ and the station(s) test run time in minutes.
kiloliters
millimeters
centimeters
cubic meters
cubic inches

A

millimeters

34
Q

What is NOT a critical question you consider related to the inspection of outbuildings?
Do they affect safety?
Does its condition impact the value of the home?
Do they affect the function of other systems on the property?
What is the intended function?
Is it performing its intended function?

A

Does its condition impact the value of the home?

35
Q

Which type(s) of well is/are also referred to as an unconsolidated well?
Water table
Unconfined aquifer
Restricted aquifer
Unrestricted aquifer
All of the above

A

Unconfined aquifer

36
Q

What is the recommendation for a septic system time-line for inspecting to ensure that it is not contaminating the groundwater and a private well?
Biannually
Annually
Every 1 to 2 years
Every 3 years
Every 5 years

A

Every 1 to 2 years

37
Q

Which type of iron present in wells should be identified for optimum treatment?
Ferric
Ferrous
Soluble clear-water iron
Iron phosphate
Ferrous sulfate

A

Ferric

38
Q

Which type of septic tanks are becoming the standard and may be mandatory depending on the authority having jurisdiction?
Plastic tanks
Fiberglass tanks
Multi-section tanks
Open-system tanks
Closed-system tanks

A

Multi-section tanks

39
Q

Which type of drain field systems lends itself to have one of the highest surface areas for leeching or drainage allowing for a smaller drain field?
Pipe and gravel
Chambers
Rockless
Multi-pipes
Dry well

A

Multi-pipes

40
Q

For horizontal placement, surface water including lakes, streams, rivers, ponds, and the ocean set backs and placement of the drain field are “typically” _______________.
50 to 75 feet
60 to 75 feet
75 to 90 feet
75 to 100 feet
100 to 125 feet

A

75 to 100 feet

41
Q

What is the most common problem with septic tanks?
Leaks associated with failure in the wall or a pipe fitting attached to the wall
The tank is full at the lid
A clogged filter
Blocked plumbing to the drain field
A failed pump.

A

Leaks associated with failure in the wall or a pipe fitting attached to the wall

42
Q

On average, a typical anaerobic, gravity fed septic system costs about ________ to replace
$6,000
$6,500
$7,000
$7,500
$8,000

A

$7,500

43
Q

Which of the following is NOT something the electric utility company owns nor is responsible for maintenance?
The service drop
The meter
The service mast
All of the above.
None of the above.

A

The service mast

44
Q

In what areas can Rebar be used for grounding (known as Ufer grounding)?
where the ground is soft
where the ground is soft and extremely sandy
where the ground is rocky
where the ground is extremely hard and rocky
Rebar cannot be used for grounding

A

where the ground is extremely hard and rocky

45
Q

Which of the following is NOT accurate regarding service drop/lateral service masts?
It may be intermediate metal conduit (IMC)
Rigid metal conduit (RMC)
Rigid nonmetallic conduit (RNC)
IMC and RMC are both galvanized steel but are not interchangeable
Rigid nonmetallic conduits (RNC) are stiff gray PVC conduit

A

IMC and RMC are both galvanized steel but are not interchangeable

46
Q

A double wall B vent requires a minimum of ________ if clearance.
½ inch
1 inch
1 ½ inches
2 inches
3 inches

A

1 inch

47
Q

Which type of boiler uses a circulating pump, usually has a tridicator, and uses virtually no make up water?
Convection
Circulated
Gravity type
Hydronic
Wet boiler

A

Circulated

48
Q

Gravity system boilers tend to run about __________.
120 degrees
130 degrees
150 degrees
180 degrees
200 degrees

A

180 degrees

49
Q

Which type of plumbing piping was in use as early as the 1960 and requires a solvent weld?
Chlorinated Polyvinyl Chloride
PEX
Galvanized steel pipe
Polyvinyl chloride
Polybutylene

A

Chlorinated Polyvinyl Chloride

50
Q

Which type of plumbing piping is commonly used for private wells and is for cold water use only?
Polyvinyl chloride
High Density Polyethylene
Chlorinated Polyvinyl Chloride
Polybutylene
PEX

A

High Density Polyethylene

ICA (26 decks)

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