Module 2 Missed Test Questions Flashcards
Choose a method that can be used to estimate the capacity of an air conditioning unit:
a. Divide the compressor RLA (rated load average) by 3 for a very old unit or 4 for a 10 SEER unit or better (typically since 1995)
b. Divide the compressor RLA (rated load average) by 3 for a very old unit or 6 for a 10 SEER unit or better (typically since 1995)
c. Divide the compressor RLA (rated load average) by 7 for a very old unit or 6 for a 10 SEER unit or better (typically since 1995)
Divide the compressor RLA (rated load average) by 7 for a very old unit or 6 for a 10 SEER unit or better (typically since 1995)
The following statement(s) is/are true about SEER (seasonal energy efficiency ration):
a. 8 or 10 SEER is the current minimum efficiency manufactured.
b. 13 or 14 SEER is the current minimum efficiency manufactured
c. Units before 1995 may be only 4 or 5 SEER
13 or 14 SEER is the current minimum efficiency manufactured
When measuring the supply temperature in an A unit what is the appropriate range you are looking for?
a. Perfect range is 5-10 degrees
b. Perfect range is 10-12 degrees
c. Perfect range is 15-22 degrees
d. Perfect range is 15-30 degrees
Perfect range is 15-22 degrees
Which of the following is not an appropriate action when a line-set is frozen in an A/C unit you are inspecting?
a. it is appropriate to tell any real estate agents that you are involved with the sale of the home
b. they are not home, leave a note
c. turn the unit off until the line is thawed and resume use.
d. if they are not home, leave a note.
turn the unit off until the line is thawed and resume use.
Most mini-split ductless systems will not operate if the interior temp is below:
a. 75 degrees
b. 70 degrees
70 degrees
A typical ductless split system bottom discharge unit should be a minimum of above the floor measuring to the underside of the air handler:
a. 6 ft
b. 5 ft
c. 4 ft
d. 3 ft
6 ft
A hi-V system removes more humidity than a conventional central air conditioning system.
a. 10%
b. 20%
c. 25%
d. 30%
30%
When checking the emergency heat after checking the heat pump, you will adjust the thermostat to get the heat pump to start in heating mode, and then, once you are done checking the heat pump, adjust the temp up another to get it to kick into emergency heat system.
a. 1 or 2 degrees, 2 or 3 degrees
b. 2 or 3 degrees, 2 or 3 degrees
c. 3 or 4 degrees, BIPHI 4 degrees
2 or 3 degrees, 2 or 3 degrees
What pump should you test a heat pump in cooling mode?
a. 50 degrees
b. 55 degrees
c. a heat pump should be tested in cooling mode only if the outside temp is at or above 60 degrees
d. 70 degrees
a heat pump should be tested in cooling mode only if the outside temp is at or above
What is the appropriate temp drop for a heat pump in heating mode?
a. for cold air, it is 10 to 20 degrees
b. for cold air, it is 15 to 30 degrees
c. for cold air, it is 10 to 15 degrees
d. for cold air, it is 15 to 25 degrees
for cold air, it is 15 to 30 degrees
What is the approximate expected life span for an air source heat pump?
a. 10-15 years
b. 12-14 years
c. 11-16 years
d. 12-17 years
12-14 years
Using Ohm’s law, which of the following scenario is NOT an acceptable circuit load for a single outlet that is 15-amp, 120-volt circuit?
a. can run 2-slice toaster (rated 800 watts) & hand mixer (rated 250 watts)
b. can not run a coffeemaker (900 watts) & a microwave (1200 watts) on same outlet
c. can run a coffeemaker (900 watts) & a microwave (1200 watts) on same outlet
can run a coffeemaker (900 watts) & a microwave (1200 watts) on same outlet
According to the Standard of Practice, what is the representative number of installed lighting fixtures, switches, & receptacles you are required to inspect?
a. at least one per room for multiple similar interior components
b. at least two per room for multiple similar interior components
c. at least two per room for multiple similar interior components & at one exterior on each side of the building for multiple similar exterior components
at least one per room for multiple similar interior components
According to ASHI standard 7.1 inspectors shall inspect all but:
a. service drop
b. service entrance conductors
c. service equipment & main disconnects
d. ground conductors in subpanel enclosures
ground conductors in subpanel enclosures
According to NEC what is the requirement for along the wall line of a countertop from a receptacle?
a. 12”
b. 14”
c. 18”
d. 24”
24”
According to the National Electric Code in residential photovoltaics, no system can exceed any more than __ volts direct current:
a. 300
b. 400
c. 500
d. 600
600
Which of the following is not accurate information regarding the changes in the 2008 NEC?
a. all grounding electrodes present must be bonded together
b. all grounding electrodes must be a minimum of 5ft apart & bonded together
c. metal water pipe, a supplemental electrode is always required
all grounding electrodes must be a minimum of 5ft apart & bonded together
Which one of the following does not meet the minimum clearance for service drop safety measured from the lowest/closest point or bottom of the drip loop:
a. areas adjacent to the house-10ft
b. balconies, decks & porches-10ft, for a distance of 3ft past the railing or edge
c. yards & driveways-10ft
yards & driveways-10ft
Modern kitchen need at least two dedicated receptacles that are :
a. 10 amp circuits
b. 12 amp circuits
c. 15 amp circuits
d. 20 amp circuits
20 amp circuits
An island requires at least one built in outlet with __ maximum countertop side and __ maximum below countertop surface on any side island or peninsula:
a. 3”, 6”
b. 6”, 12”
c. 8”, 12”
6”, 12”
What is the most common type of ductwork used for forced air heating & cooling?
a. fiberglass board
b. flex-duct
c. foil-lined insulated metal-coil
d. steel
Steel
Do not operate a circulated boiler unless there is at least __ pounds of pressure on the gauge.
a. 3 lbs
b. 5 lbs
c. 10 lbs
d. 12 lbs
10 lbs
Which is the most common boiler used to heat residential homes?
a. steam boiler
b. circulated boiler
c. convection boiler
d. conventional boiler
circulated boiler
While combustion space heater sensors are not always reliable, they are supposed to stop the equipment when oxygen levels fall below:
a. 15%
b. 18%
c. 20%
d, 21%
18%
Which type of space heater is allowed in a bedroom in many areas?
a. direct vent space heaters w/sealed combustion chambers
b. ventless gas space heater
c. combustion space heater
d. direct vent heater
direct vent space heaters w/sealed combustion chambers
Typical clearances for direct vent space heaters are 12 inches on both sides, __ inches from the top & 24 inches in front.
a. 24 inches
b. 20 inches
c. 32 inches
d. 36 inches
36 inches
When inspecting fireplaces, exterior clearances include no combustible material __ of the firebox opening for material up to 1.5 inches thick, No combustible material should be within 12 inches if over 1.5 inches thickness.
a. 6 inches
b. 8 inches
c. 15 inches
d. 18 inches
6 inches
When inspecting fireplaces, the hearth extension must be at least __ in depth from the front of the fireplace and __ to each side for openings greater than 6 sq ft.
a. 12 in, 20 in
b. 16 in, 8 in
c. 20 in, 12 in
d. 24 in, 12 in
20 in, 12 in
What type of boiler operates at an average range of 215 degrees Fahrenheit?
a. gravity
b. circulated
c. steam
d. water vapor
steam
Which of he following is/are Standard of Practice for plumbing inspection?
a. sewage injectors, sump pumps, & related piping
b. wells & well pumps
c. septic & other sewage disposal systems
d. water storage & related equipment
sewage injectors, sump pumps, & related piping
Which 2 types of plumbing pipe used together are more likely to corrode when placed in contact with each other?
a. copper & lead
b. lead & galvanized steel
c. galvanized steel & copper
d. brass & copper
galvanized steel & copper
Which type of drainage & vent piping has been in use since the 1800s, is still used in some new home construction, and is quieter than PVO?
a. cast iron & galvanized steel
b. ABS & DWV
c. brass & copper
d. copper & lead
cast iron & galvanized steel
While measuring & reporting on water pressure is not required by the Standard to PSI, if you choose to measure water pressure, it should be
a. 20 to 70 PSI
b. 20 to 80 PSI
c. 30 to 70 PSI
d. 30 to 80 PSI
30 to 80 PSI
Showers & bathtubs should have a trap below the floor within other fixtures must have a trap within:
a. 8”, built in
b. 12”, in same room
c. 18”, built-in
d. 24”, in same room
18”, built-in
When did the U.S. require that all hot water heaters manufactured be Flammable Vapor Ignition Resistant (FVIR) units?
a. July 1, 1995
b. July 1, 2000
c. July 1, 2003
d. July 1, 2006
July 1, 2000
Hot water heater temp. & pressure relief (TIPR) must be properly rated & piped. The valve must be rated at a maximum of ___ and ___ per square inch.
a. 150 degrees , 75 lbs (psi)
b. 175 degrees , 100 lbs (psi)
c. 210 degrees , 150 lbs (psi)
210 degrees , 150 lbs (psi)
The crawl space plenum’s ground surface should be covered with a moisture barrier having a minimum thickness of:
a. millimeter
b. 2 mils
c. 3 mils
d. 4 mils
4 mils
When it comes to the crawl space & finish grade, to circumvent moisture accumulation in the crawl space area, which of the following is NOT accurate?
a. The grade in the underfloor space must be at least the same level as the grade outside of the the building
b. There needs to be a positive slope away, typically inch per foot, for a minimum of 6” over 10 feet
c. the finished grade of the under floor surface should not be located at the bottom of the footings
the finished grade of the under floor surface should not be located at the bottom of the footings
Attic ventilation opening should have at least dimensions of a __ and 1/4 inch maximum opening:
a. 1/16”
b. 1/4”
c. 3/4”
d. 1/2”
1/16”
Radiant energy counts for over __ of all the heat transfer whether into the home or out of the home.
a. 75%
b. 85%
c. 90%
d. 95%
95%
Low density spray foam insulations RI value starts at ____ per inch.
a. 2.6
b. 3.6
c. 4.6
d. 5.6
3.6 per inch
How many watts is equivalent to horsepower?
a. 327.9
b. 545.7
c. 654.7
d. 745.7
745.7
When talking about byproducts of combustion and combustion-based fuels, roughly speaking, __ of the combustion by products are going to be carbon dioxide and __ is going to be water vapor.
a. 10%, 90%
b. 25%, 75%
c. 30%, 70%
d. 35%, 65%
30%, 70%
If you want to make something feel hotter, you increase the amount of water vapor in the air and you heat up the air in close approximations, __% of air is composed of nitrogen, __% of air/oxygen and about __% water vapor. This is important because the majority of heat energy is absorbed in the water vapor, not the N2 or O2.
a. 58%, 29%, 3%
b. 71%, 26%, 3%
c. 78%, 21%, 0.5%
78%, 21%, 0.5%
Which type of ventilation system pressurizes the entire house and assists with getting oxygen to the natural gas or propane or carbon-burning appliance and getting the exhaust out?
a. balanced ventilation system
b. closed ventilation system
c. supply ventilation system
d. exhaust ventilation system
supply ventilation system
To determine the required capacity for range hood exhaust systems capacity by cubic feet per minute (CFM) you calculate the total heat output of the range in British thermal units (BTUs) and divide by for intermittent systems or by 400 for continuous systems
a. 50
b. 75
c. 100
d. 125
100
Electric radiant heaters should not be installed over pool or within __feet horizontally from the inside walls of the pool. It should be at least __vertical feet away from the pool deck.
a. 2 feet, 10
b. 4 feet, 12
c. 5 feet, 10
d. 5 feet, 12
5 feet, 12
The working definition of a swimming pool considered a permanent structure in the ground, or partially in the ground, that is capable of holding water with a depth greater than __ outside a building:
a. 24”
b. 30”
c. 42”
d. 48”
42”
In what year did Congress pass the Virginia Graerne Baker Pool & Safety Act to prevent the hidden hazard of drain entrapments and eviscerations in pools and spas?
a. 1998
b. 2000
c. 2006
d. 2008
2008
There should be no switches within __feet horizontally from the inside walls of pools, spas or hot tubs, except where separated by a barrier.
a. 5 ft
b. 6 ft
c. 7 ft
d. 8 ft
5 ft
To calculate the Maximum Applied Water Allowance (MAWA) to establish a water budget for irrigation systems, you use the formula MAWA = ETo x AF x LA X ___
a. 0.32
b. 0.52
c. 0.62
d. 0.72
0.62
To convert MAWA to billing units of a hundred cubic feet of water, use the formula CCF = MAWA divided by:
a. 448
b. 558
c. 654
d. 748
748
When using the calendar method for irrigation frequency, what is the first thing you need to determine?
a. number of irrigation days per week
b. minutes of run time per week
c. calculate run time per day
d. observe if runoff occurs
minutes of runtime per week
Which of the following is not true about distribution uniformly (DUR)
a. DU describes how evenly water is applied over the irrigated areas
b. A DU value is usually calculated for each irrigation valve as the ratio of the lowest one half of the head output or catches
c. Catch can test are used to evaluate DU
A DU value is usually calculated for each irrigation valve as the ratio of the lowest one half of the head output or catches
Driven wells are continuously cased and shallow. Approximately how deep are they?
a. 10 to 30 feet
b. 25 to 45 feet
c. 30 to 50 feet
d. 35 to 60 feet
30 to 50 feet
What is the average depth of a confined aquifer?
a. 100 ft
b. 250 ft
c. 300 ft
d. 500 ft
250 ft
What type of well is “typically” the purest, most abundant, and source that is already under pressure?
a. water table
b. restricted aquifer
c. unrestricted aquifer
d. confined aquifer
confined aquifer
The pressure switch that signals the well to start is typically preset with the lower limit at __PSI and higher at __PSI
a. 10 PSI, 30 PSI
b. 20 PSI, 40 PSI
c. 50 PSI, 70 PSI
d. 40 PSI, 60 PSI
40 PSI, 60 PSI
Pressure switches for well pumps are set at the factory with a __ differential pressure that can be adjusted up to 100 psi at installation as desired.
a. 10 psi
b. 20 psi
c. 30 psi
d. 40 psi
20 psi
What amount of clear water iron in well water warrants an iron filter recommendation?
a. 5 to 10 mg/L
b. 6 to 12 mg/L
c. 7 to 15 mg/L
d. 8 to 16 mg/L
7 to 15 mg/L
If the well water sample test warrants filtration and or treatment, you should direct the client to contact:
a. plumber
b. certified water analyst
c. water treatment specialist
water treatment specialist
Rationale: using the EPA climate zone map, zones 1 through 7, the recommended R value for insulation is __ for 2x4 walls, and __ for 2x6 walls.
a. R10 to R15, R13 to R15
b. R13 to R15, R19 to R21
c. R19 to R25, R25 to R30
R13 to R15, R19 to R21
Which of the following irrigation budget calculation formulas is used for shrub inches:
(ETo x PF)/DU= (5.0x0.5)/0.8 = 3.1 in x 40% = 1.2”
(ETo x PF)/DU= (5.0x0.5)/0.8 = 3.1 in x 40% = 1.2”
Septic tanks are generally made of which material?
a. plastic
b. steel
c. concrete
d. all of the above
all of the above
Which type of drain field systems is a relatively newer style growing in popularity?
a. chambers
b. rockless
c. dry well
chambers
Which type of drain field system is less effective than a traditional trench due to the lack of surface area, but considered to be more durable?
a. pipe and gravel
b. chambers
c. dry well
dry well
What is by far the most common type of boiler?
a. convection
b. circulated
c. gravity type
circulated
Which type of boiler has an expansion tank in an attic or other high point above the radiator:
a. convection
b. circulated
c. gravity type
gravity type
Which type of boiler is known for its nice even heat and simple technology?
a. gravity type
b. circulated
c. wet boiler
gravity type
Which type of plumbing piping was introduced in the 1940s and comes in types K, L, M or DWV?
a. galvanized steel
b. copper
c. PEX
copper
When measuring and reporting on water pressure, it should be 30 to 80 psi. For the best pressure check, use ___’
a. a garden hose bib, downstream from the pressure
b. kitchen faucet
c. tub spigot
a garden hose bib, downstream from the pressure
Which type of plumbing piping has a life expectancy of 40 to 50 years, was used from the 1920s through the 1960s and is known for interior surface corrosion over time.
a. chlorinated
b. lead pipe
c. galvanized steel
galvanized steel
Which of the following lenders typically have a mandated requirement to inspect septic systems?
a. FHA, VA, USDA, and HUD
b. VA, HUD, and USDA
c. FHA, HUD and VA
FHA, VA, USDA, and HUD
Which of the following statements is/are principal objectives when installing an electrical system?
a. To find a route for the current to travel from the transformer to the electrical outlets in the home
b. To provide a safe way for electricity to enter the home, perform work and leave the home.
c. All of the above
To provide a safe way for electricity to enter the home, perform work and leave the home.
Any outlet on an island kitchen needs to be a minimum of ___ below the countertop.
a. 4 in
b. 5 in
c. 12 in
d. 18 in
12 in
Which of the following is not included in the ASHI glossary for the definition wiring method?
a. identification of electrical conductors by their specific type
b. identification of knob and tube if present
c. identification of armored cable if present
identification of electrical conductors by their specific type
A service lateral that is an underground service must be protected by either a metal conduit or a:
a. schedule 60 RNC
b. schedule 80 RNC
c. schedule 80 RMC
schedule 80 RNC
On a high efficiency furnace, the air intake and the exhaust components should be:
a. 6 to 12 inches a part
b. 8 to 14 inches apart
c. 12 to 24 inches apart
d. 18 to 30 inches apart
12 to 24 inches apart
How many inches does there need to be in front of the furnace in an attic for servicing?
a. 12 inches
b. 15 inches
c. 20 inches
d. 30 inches
30 inches
How much cubic feet of air for each pint of number 2 oil is required for an oil burning furnace?
a. 125 cubic feet
b. 200 cubic feet
c. 215 cubic feet
d. 175 cubic feet
215 cubuc feet
For fuel furnaces, a double wall L-vent requires a minimum of clearance all the way around.
a. 3 inches
b. 2 inches
c. 1 inch
d. 1/2 inch
3 inches
What is the correct information in the definition of amps or amperage?
a. amount of quantity of electrical current
b. pressure behind current
c. measured in pounds per square inch
amount of quantity of electrical current
Plug fuses can be either- Type:_ or Type:_
a. V (GE Base) or Y
b. T (Edison Base) or S
c. X (GE Base) or Y
T (Edison Base) or S
When inspecting a septic tank, a pump out is always preferred & should be done by a septic contractor along with a filter change. You can then inform the client that the next pump out should be __
a. done annually
b. every 3 to 4 years
c. every 3 to 5 years
every 3 to 5 years
