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Certified Ceramic Tile Installer (CTI) Exam COMPLETE
QUESTIONS AND DETAILED SOLUTIONS LATEST UPDATE
THIS YEAR-JUST RELEASED
Summarized Exam Coverage – Certified Ceramic Tile Installer (CTI)
The CTI program, administered by the Ceramic Tile Education Foundation (CTEF), has two parts: a 155-
question open-book technical proficiency exam and a hands-on practical test . The exam is based on
the TCNA Handbook for Ceramic, Glass, and Stone Tile Installation and the CTEF Field Manual for Thin-
bed Installation of Ceramic Tile . A maximum of four hours is allowed for the written exam .
Key Subject Areas :
• Industry associations and standards (ANSI, TCNA)
• Safety (tool use, PPE)
• Concrete substrate considerations
• Wood substrate considerations
• Crack isolation membranes
• Backer boards (cement, fiber-cement, foam)
• Bonding materials (thinset mortars, mastics)
• Ceramic tile performance properties (PEI rating, water absorption)
• Tile installation workmanship standards
• Cementitious grout (sanded vs. unsanded)
• Movement accommodation joints
• Flexible sealants (caulks)
• Layout guidelines (centering, balancing, cuts)
• Large-format tile and warpage limitations (maximum 33% offset for tiles >15″ unless
manufacturer approves)
• Minimum grout joint size (three times the variation in facial dimensions)
Hands-on Test Modules :
• Crack isolation membrane
• Backer board installation
• Wall tile installation
• Floor tile installation (large-format or diagonal)
• Grouting (cementitious grout)
• Flexible sealant (caulking)
Prohibited items during hands-on test: angle grinders, circular saws, cell phones .
1. A candidate for the CTI exam is reviewing the open-book technical proficiency test. How many
questions are on this written portion of the certification process?
A) 50 questions
B) 100 questions
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C) 155 questions
D) 200 questions
Answer: C – The technical proficiency exam consists of 155 multiple-choice questions and is open-book .
2. An installer is preparing for the hands-on portion of the CTI test. Which of the following power tools is
NOT permitted to be brought into the testing area?
A) Wet saw
B) Angle grinder
C) Manual tile cutter
D) Mixing drill
Answer: B – Angle grinders and circular saws are specifically prohibited during the hands-on test due to
safety concerns .
3. During the hands-on CTI evaluation, the installer must demonstrate proper installation of vapor
retarder membrane, backer board, tile (walls and floors), cementitious grout, and what other finishing
material?
A) Epoxy grout
B) Flexible sealant (caulk)
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C) Urethane grout
D) Polishing compound
Answer: B – The hands-on test requires demonstration of flexible sealant (caulking) in addition to the
other materials .
4. A tile setter is installing large-format tiles (greater than 15 inches on one side) in a running bond
pattern. According to TCNA guidelines, what is the maximum allowable offset unless approved by the
tile manufacturer?
A) 25%
B) 33%
C) 50%
D) 10%
Answer: B – For tiles where the side being offset is greater than 15 inches, the offset pattern shall be a
maximum of 33% unless otherwise specified by the tile manufacturer .
5. An installer is laying out a floor with 12″ x 24″ tiles. The facial dimensions of the supplied tiles vary by
1/16″. What is the minimum required grout joint size for this installation?
A) 1/16″
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B) 1/8″
C) 3/16″
D) 1/4″
Answer: C – The actual grout joint size shall be at least three times the actual variation of facial
dimensions. 3 × 1/16″ = 3/16″ .
6. A customer requests a 1/16″ grout joint for a rectified porcelain tile installation. The TCNA Handbook
states that the smallest grout joint ever recommended is what size?
A) 1/32″
B) 1/16″
C) 1/8″
D) 3/16″
Answer: B – A 1/16″ grout joint is the smallest grout joint ever recommended by industry standards .
7. An installer is preparing for the CTI written exam. Which two publications serve as the primary
references for the open-book test?
A) NTCA Reference Manual and ANSI A108
B) TCNA Handbook and CTEF Field Manual
Certified Ceramic Tile Installer (CTI) Exam COMPLETE
QUESTIONS AND DETAILED SOLUTIONS LATEST UPDATE
THIS YEAR-JUST RELEASED
Summarized Exam Coverage – Certified Ceramic Tile Installer (CTI)
The CTI program, administered by the Ceramic Tile Education Foundation (CTEF), has two parts: a 155-
question open-book technical proficiency exam and a hands-on practical test . The exam is based on
the TCNA Handbook for Ceramic, Glass, and Stone Tile Installation and the CTEF Field Manual for Thin-
bed Installation of Ceramic Tile . A maximum of four hours is allowed for the written exam .
Key Subject Areas :
• Industry associations and standards (ANSI, TCNA)
• Safety (tool use, PPE)
• Concrete substrate considerations
• Wood substrate considerations
• Crack isolation membranes
• Backer boards (cement, fiber-cement, foam)
• Bonding materials (thinset mortars, mastics)
• Ceramic tile performance properties (PEI rating, water absorption)
• Tile installation workmanship standards
• Cementitious grout (sanded vs. unsanded)
• Movement accommodation joints
• Flexible sealants (caulks)
• Layout guidelines (centering, balancing, cuts)
• Large-format tile and warpage limitations (maximum 33% offset for tiles >15″ unless
manufacturer approves)
• Minimum grout joint size (three times the variation in facial dimensions)
Hands-on Test Modules :
• Crack isolation membrane
• Backer board installation
• Wall tile installation
• Floor tile installation (large-format or diagonal)
• Grouting (cementitious grout)
• Flexible sealant (caulking)
Prohibited items during hands-on test: angle grinders, circular saws, cell phones .
1. A candidate for the CTI exam is reviewing the open-book technical proficiency test. How many
questions are on this written portion of the certification process?
A) 50 questions
B) 100 questions
, Page 2 of 127
C) 155 questions
D) 200 questions
Answer: C – The technical proficiency exam consists of 155 multiple-choice questions and is open-book .
2. An installer is preparing for the hands-on portion of the CTI test. Which of the following power tools is
NOT permitted to be brought into the testing area?
A) Wet saw
B) Angle grinder
C) Manual tile cutter
D) Mixing drill
Answer: B – Angle grinders and circular saws are specifically prohibited during the hands-on test due to
safety concerns .
3. During the hands-on CTI evaluation, the installer must demonstrate proper installation of vapor
retarder membrane, backer board, tile (walls and floors), cementitious grout, and what other finishing
material?
A) Epoxy grout
B) Flexible sealant (caulk)
, Page 3 of 127
C) Urethane grout
D) Polishing compound
Answer: B – The hands-on test requires demonstration of flexible sealant (caulking) in addition to the
other materials .
4. A tile setter is installing large-format tiles (greater than 15 inches on one side) in a running bond
pattern. According to TCNA guidelines, what is the maximum allowable offset unless approved by the
tile manufacturer?
A) 25%
B) 33%
C) 50%
D) 10%
Answer: B – For tiles where the side being offset is greater than 15 inches, the offset pattern shall be a
maximum of 33% unless otherwise specified by the tile manufacturer .
5. An installer is laying out a floor with 12″ x 24″ tiles. The facial dimensions of the supplied tiles vary by
1/16″. What is the minimum required grout joint size for this installation?
A) 1/16″
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B) 1/8″
C) 3/16″
D) 1/4″
Answer: C – The actual grout joint size shall be at least three times the actual variation of facial
dimensions. 3 × 1/16″ = 3/16″ .
6. A customer requests a 1/16″ grout joint for a rectified porcelain tile installation. The TCNA Handbook
states that the smallest grout joint ever recommended is what size?
A) 1/32″
B) 1/16″
C) 1/8″
D) 3/16″
Answer: B – A 1/16″ grout joint is the smallest grout joint ever recommended by industry standards .
7. An installer is preparing for the CTI written exam. Which two publications serve as the primary
references for the open-book test?
A) NTCA Reference Manual and ANSI A108
B) TCNA Handbook and CTEF Field Manual
