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ICA > Module 2 Missed Questions 3 > Flashcards

Module 2 Missed Questions 3 Flashcards

1
Q

The following is accurate information on age & capacity data (national averages)
a. 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
b. 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
c. Exterior condenser/compressor units typically last about 15 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?
a. The unit should be turned off immediately
b. It is not appropriate for you to share this information with any real estate agents
c. Ask the client 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:
a. Six inches of clearance from combustibles
b. Eight inches from combustibles
c. Ten inches from combustibles

A

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?
a. 60 minutes
b. 30 minutes
c. 5-10 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 __ & a maximum length of __. It needs to be at least __ long to act as a muffler.
a. 3 ft, 15 ft, 3 ft
b. 4 ft, 20 ft, 4 ft
c. 6 ft, 30 ft, 6 ft

A

6 ft, 30 ft, 6ft

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6
Q

When inspecting a heat pump which of the following is not a concern?
a. The owner uses the emergency heat setting instead of running the heat pump.
b. The heat pump is installed on the rooftop
c. The heat pump is located directly below a roof ridge

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.
a. 30 degrees
b. 20 degrees
c. 10 degrees

A

10 degrees

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8
Q

Life expectancy of a geothermal unit is approximately __.
a. 10-15 years
b. 20-25 years
c. 30 + years

A

20-25 years

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9
Q

The maximum supply air temp from a geothermal system in heating mode is about 125 degrees, but more typically, it operates at somewhere between _ and _ degrees.
a. 70 and 75
b. 85 and 95
c. 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.
a. 60 RNC, 12 in
b. 70 RNC, 12 in
c. 80 RNC, 18 in

A

80 RNC, 18 in

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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.
a. 36 and 30
b. 30 and 24
c. 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.
a. 5 watts, 10 amps
b. 5 watts, 15 amps
c. 10 watts, 15 amps

A

5 watts, 10 amps

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13
Q

Based on the NFPA, using what they tell us is unconfined space, calculate the required cubic feet for a 10,000 BTU furnace with a 34,000 BTU water heater right next to it.
a. 5700 cubic ft
b. 67oo cubic ft
c. 7600 cubic ft

A

6700 cubic ft

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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
a. 6 pounds
b. 10 pounds
c. 12 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 __.
a. 5 min
b. 12 min
c. 15 min

A

5 min

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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.
a. 6 in
b. 10 in
c. 12 in

A

12 in

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17
Q

Which of the following plumbing supply piping is for radiant heat only?
a. CPVC
b. PC
c. 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.
a. 1/2 in
b. 1 in
c. 2 in

A

1 in

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19
Q

Steel plate protection is required in a wall if the piping is less than __ from the face of framing
a. 1/2 in
b. 3/4 in
c. 1 in

A

1 in

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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 __
a. Wood destroying organisms
b. Deteriorated wood or materials
c. Eroded wood or materials

A

Wood destroying organisms

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21
Q

If the relative humidity in a crawl space is consistently above __ then dehumidification is recommended
a. 45%
b. 50%
c. 55%

A

55%

22
Q

Which type of insulation can be found in older homes, is not used in the U.S> anymore, and has a low R-value of 2.13?
a. Fiberglass
b. Vermiculite
c. Cellulose

A

Vermiculite

23
Q

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

A

7.2

24
Q

Low density spray foam insulation’s R-value starts at __ per inch
a. 3.6
b. 4.6
c. 5.6

A

3.6

25
Q

What is the “typical” efficiency rating for permanently-split capacitor motors?
a. 75%
b. 85%
c. 90%

A

90%

26
Q

The ASHRA say that 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.
a. 0.27, 12 cubic feet
b. 0.35, 15 cubic feet
c. .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?
a. closed ventilation system
b. supply ventilation system
c. balanced ventilation system

A

balanced ventilation systems

28
Q

Some pool codes require one skimmer for every __ of pool surface water.
a. 200 sqft
b. 500 sqft
c. 600 sqft

A

500 sqft

29
Q

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

A

6 to 8 feet

30
Q

Which of the following irrigation budget calculation formulas is used for turf grass inches?
a. (ETo x Kc)/DU = (5.0 x 0.8)/0.7 = 5.7in x 50% = 2.9 in
b. (ETo x Kc)/DU = (5.0 x 0.8)/0.7 = 5.7in x 50% = 2.5 in
c. (ETo x PF)/DU = (5.0 x 0.8)/0.8 = 3.1in x 40% = 2.9 in

A

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

31
Q

Which of the following are NOT considered physical problems with irrigation systems?
a. broken heads or nozzles
b. high head drainage
c. sunken heads

A

high head drainage

32
Q

What is the correct formula for calculating the average precipitation rate?
a. PR(IN/HR) = Average (GPM) per head divided by Average head 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
a. kiloliters
b. millimeters
c. centimeters

A

millimeters

34
Q

What is not a critical question you consider to the inspection of outbuildings?
a. do they affect safely?
b. Is it performing its intended function?
c. Does it impact the value of the home?

A

Does it impact the value of the home?

35
Q

Which type of well is/are also referred to as an unconsolidated well?
a. water table
b. unconfined aquifer
c. 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?
a. biannually
b. annually
c. every 1-2 years

A

1-2 years

37
Q

Which type of iron present in wells should be identified for optimum treatment?
a. Ferric
b. Ferrous
c. 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?
a. plastic tanks
b. fiberglass tanks
c. multi-section 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?
a. multi-pipes
b. rockless
c. 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”__.
a. 50 to 75 ft
b. 75 to 100 ft
c. 100 to 125 ft

A

75 to 100 ft

41
Q

What is the most common problem with septic tanks?
a. clogged filter
b. failed pump
c. leaks associated with failure in the wall or a pipe fitting attached to the wall

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.
a. 6000
b. 6500
c. 7500

A

7500

43
Q

Which of the following in NOT something the electric utility company owns nor is responsible for maintenance?
a. service drop
b. service mast
c. the meter

A

service mast

44
Q

In what areas can Rebar be used for grounding?
a. ground is soft
b. ground is rocky
c. ground is extremely hard and rocky

A

ground is extremely hard and rocky

45
Q

Which of the following is NOT accurate regarding service drop/lateral service masts?
a. IMC and RMC are both galvanized steel but are not interchangeable
b. rigid nonmetallic conduit
c. rigid metal 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
a. 3 inches
b. 1 inch
c. 2 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?
a. circulated
b. convection
c. hydronic

A

circulated

48
Q

Gravity system boilers tend to run about__.
a. 120 degrees
b. 150 degrees
c. 180 degrees

A

180 degrees

49
Q

Which type of plumbing piping was in use as early as the 1960 & requires a solvent weld?
a. Chlorinated Polyvinyl Chloride
b. PEX
c. 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?
a. PEX
b. High density polyethylene
c. Polybutylene

A

High density polyethylene

ICA (52 decks)

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