Residential swimming pool trade knowledge exam
questions and answers
A round spa with a 12' inside diameter is to be installed. The site elevation prior to
excavation for the spa is 0.00'. The pool shell is to be excavated to allow for a 6"
clearance from the 4" thick spa walls and flat bottom slab. Finished inside depth of the
spa is to be 3'. The total depth of excavation for the spa shell is ____________. Select
the closest answer. - Answer-3'10"
/.Portable abrasive wheels used for external grinding shall be provided with safety
guards unless they are ___________ or less in diameter and securely mounted on the
end of a steel mandrel. - Answer-2"
/.Backwashing of a sand filter is required when the influent water and the effluent water
reaches ___________according to the POOL SPA OPERATOR HANDBOOK. -
Answer-10 to 20 psi
/.The design collapse pressure of a vacuum service filter tank shall be at
leas______times the pressure developed by the water in the tank. - Answer-1.5
/.What can only happen with a dry mix hose when applying shotcrete? - Answer-Static
electricity buildup
/.All these materials, except_______ are considered to have acceptable corrosion
resistance for general swimming pool and spa/hot tub equipment applications and are
not required to have a protective coating. - Answer-ferrous alloys containing 58%
copper
/.The NATIONAL ELECTRIC CODE requires that the heating elements in electrical pool
water heaters shall be subdivided into loads not exceeding ________ amperes. -
Answer-48
/.According to the CONCRETE MASONRY HANDBOOK, ________ greatly improves
the pumpability of plaster. - Answer-Well-graded aggregate
/.According to PLACING REINFORCING BARS, the recommended minimum cover (or
protection) for #6 reinforcing bars in concrete walls, which are in contact with the
ground, is_______. - Answer-2" from outside of bar to face of concrete
/.According to RESIDENTIAL INGROUND SWIMMING POOLS, the slope of the deep
area floor shall not exceed 1 foot of fall in________feet horizontally. - Answer-3
/.When chlorine gas is dissolved in water _________is formed. - Answer-Hypochlorous
acid
, /.The diameter of #5 reinforcing steel is____. - Answer-5/8"
/.The vertical distance between the spa and swim spa coping edge, deck, or step
surface and the uppermost recessed tread shall be a maximum of_______. - Answer-1'
/.An advantage of renting or leasing ________equipment vs. purchasing equipment is
that renting or leasing according to the BUILDING ESTIMATOR'S REFERENCE BOOK.
- Answer-Eliminates personal property taxes on equipment
/.According to the FLORIDA BUILDING CODE, all pool piping shall be tested and
proven tight under a static water or air pressure test of a minimum of 35 psi for
__________ minutes. - Answer-15
/.According to RESIDENTIAL INGROUND SWIMMING POOLS, a pool measuring
16'x32', with an average depth of 4-6", shall require a minimum of ________ Inlet(s). -
Answer-4
/.According to the POOL & SPA OPERATOR HANDBOOK, the conversion of combined
chlorine compounds to nitrogen gas is called_________. - Answer-Breakpoint
chlorination
/.The most popular alternative material for D.E. type filters is _________according to the
POOL & SPA OPERATOR HANDBOOK. - Answer-Based on wood pulp fiber
/.Grade________ CMU's are used for walls above and below grade that may be
exposed to moisture. - Answer-N
/.According to GUIDE TO SHOTCRETE, wet mix process shotcrete with a slump range
of______ inches is normally suitable. - Answer-2 to 4
/.According to the FLORIDA BUILDING CODE, when using recessed automatic surface
skimmers on a 20' x 30' swimming pool, the minimum is one skimmer for
every__________ feet or fraction thereof of pool water surface area. - Answer-400
/.To prevent a problem of slippery sides and bottom ofa pool due to algae, you
should_______. - Answer-Superchlorinate routinely
/.A circulating system with a minimum_________ hour turnover rate shall be provided
for each wading pool. - Answer-1
/.According to the NATIONAL ELECTRIC CODE, one way to protect electric equipment
that depends on submersion for safe operation is to use a - Answer-Low-water cutoff
/.Ultraviolet units shall be capable of operating___________continuous hours at or
above the manufacturer's minimum rated dose. - Answer-3,000
questions and answers
A round spa with a 12' inside diameter is to be installed. The site elevation prior to
excavation for the spa is 0.00'. The pool shell is to be excavated to allow for a 6"
clearance from the 4" thick spa walls and flat bottom slab. Finished inside depth of the
spa is to be 3'. The total depth of excavation for the spa shell is ____________. Select
the closest answer. - Answer-3'10"
/.Portable abrasive wheels used for external grinding shall be provided with safety
guards unless they are ___________ or less in diameter and securely mounted on the
end of a steel mandrel. - Answer-2"
/.Backwashing of a sand filter is required when the influent water and the effluent water
reaches ___________according to the POOL SPA OPERATOR HANDBOOK. -
Answer-10 to 20 psi
/.The design collapse pressure of a vacuum service filter tank shall be at
leas______times the pressure developed by the water in the tank. - Answer-1.5
/.What can only happen with a dry mix hose when applying shotcrete? - Answer-Static
electricity buildup
/.All these materials, except_______ are considered to have acceptable corrosion
resistance for general swimming pool and spa/hot tub equipment applications and are
not required to have a protective coating. - Answer-ferrous alloys containing 58%
copper
/.The NATIONAL ELECTRIC CODE requires that the heating elements in electrical pool
water heaters shall be subdivided into loads not exceeding ________ amperes. -
Answer-48
/.According to the CONCRETE MASONRY HANDBOOK, ________ greatly improves
the pumpability of plaster. - Answer-Well-graded aggregate
/.According to PLACING REINFORCING BARS, the recommended minimum cover (or
protection) for #6 reinforcing bars in concrete walls, which are in contact with the
ground, is_______. - Answer-2" from outside of bar to face of concrete
/.According to RESIDENTIAL INGROUND SWIMMING POOLS, the slope of the deep
area floor shall not exceed 1 foot of fall in________feet horizontally. - Answer-3
/.When chlorine gas is dissolved in water _________is formed. - Answer-Hypochlorous
acid
, /.The diameter of #5 reinforcing steel is____. - Answer-5/8"
/.The vertical distance between the spa and swim spa coping edge, deck, or step
surface and the uppermost recessed tread shall be a maximum of_______. - Answer-1'
/.An advantage of renting or leasing ________equipment vs. purchasing equipment is
that renting or leasing according to the BUILDING ESTIMATOR'S REFERENCE BOOK.
- Answer-Eliminates personal property taxes on equipment
/.According to the FLORIDA BUILDING CODE, all pool piping shall be tested and
proven tight under a static water or air pressure test of a minimum of 35 psi for
__________ minutes. - Answer-15
/.According to RESIDENTIAL INGROUND SWIMMING POOLS, a pool measuring
16'x32', with an average depth of 4-6", shall require a minimum of ________ Inlet(s). -
Answer-4
/.According to the POOL & SPA OPERATOR HANDBOOK, the conversion of combined
chlorine compounds to nitrogen gas is called_________. - Answer-Breakpoint
chlorination
/.The most popular alternative material for D.E. type filters is _________according to the
POOL & SPA OPERATOR HANDBOOK. - Answer-Based on wood pulp fiber
/.Grade________ CMU's are used for walls above and below grade that may be
exposed to moisture. - Answer-N
/.According to GUIDE TO SHOTCRETE, wet mix process shotcrete with a slump range
of______ inches is normally suitable. - Answer-2 to 4
/.According to the FLORIDA BUILDING CODE, when using recessed automatic surface
skimmers on a 20' x 30' swimming pool, the minimum is one skimmer for
every__________ feet or fraction thereof of pool water surface area. - Answer-400
/.To prevent a problem of slippery sides and bottom ofa pool due to algae, you
should_______. - Answer-Superchlorinate routinely
/.A circulating system with a minimum_________ hour turnover rate shall be provided
for each wading pool. - Answer-1
/.According to the NATIONAL ELECTRIC CODE, one way to protect electric equipment
that depends on submersion for safe operation is to use a - Answer-Low-water cutoff
/.Ultraviolet units shall be capable of operating___________continuous hours at or
above the manufacturer's minimum rated dose. - Answer-3,000
