IICRC UFT [UPHOLSTERY & FABRIC CLEANING TECHNICIAN
CERTIFICATION EXAM STUDY GUIDE] | VERIFIED PRACTICE
QUESTIONS WITH CORRECT ANSWERS
& DETAILED RATIONALES | COMPLETE FIBER IDENTIFICATION,
CLEANING METHODS, SPOTTING TECHNIQUES & FABRIC
PROTECTION PREP LATEST UPDATE 2026/2027
TABLE OF CONTENTS
1: FIBER IDENTIFICATION & ANALYSIS ...................... Questions 1-50
2: FABRIC CONSTRUCTION & STYLES ........................ Questions 51-75
3: SOIL, CLEANING CHEMISTRY & METHODS .................. Questions 76-120
4: SPOTTING & STAIN REMOVAL TECHNIQUES ................ Questions 121-170
5: PRE-TESTING & PROBLEM PREVENTION ................... Questions 171-200
6: UPHOLSTERY PROCEDURES & TECHNIQUES ................. Questions 201-230
7: FABRIC PROTECTION & AFTER-CLEANING TREATMENTS ..... Questions 231-250
1: FIBER IDENTIFICATION & ANALYSIS
1. Which fiber is a natural protein fiber commonly used in upholstery and is
known for good dye uptake and dimensional stability?
A) Polyester
B) Nylon
C) Wool
D) Olefin
Correct Answer: C) Wool
Rationale: Wool is a natural protein fiber with excellent dye affinity and good
dimensional stability compared with many plant fibers; polyester and nylon are
synthetic; olefin is synthetic polyolefin.[reference:0]
2. The term "pile" on upholstery fabric refers to:
1
,A) The backing material
B) Yarn twist
C) The raised surface fibers or loops
D) The thread count
Correct Answer: C) The raised surface fibers or loops
Rationale: Pile describes the raised surface (cut or looped) of fabrics such as
velvet or chenille; backing, yarn twist, and thread count are different
characteristics.[reference:1]
3. When performing a fiber identification test for protein vs. cellulose fibers,
which simple burn test observation indicates a protein fiber?
A) Burns slowly, smells like burning paper, leaves a grayish ash
B) Burns quickly with no odor, forms a hard bead
C) Burns slowly, smells like burning hair or feathers, leaves a brittle crushable ash
D) Melts and droplets form
Correct Answer: C) Burns slowly, smells like burning hair or feathers, leaves a
brittle crushable ash
Rationale: Protein fibers such as wool and silk emit a characteristic hair-like, acrid
odor when burned and leave a brittle, crushable ash.[reference:2][reference:3]
4. Fabrics frequently are made from a blend or combination of:
A) Yarns
B) Fibers
C) Threads
2
,D) Polymers
Correct Answer: B) Fibers
Rationale: Fabrics are frequently made from a blend or combination of different
fibers to achieve specific performance characteristics.[reference:4][reference:5]
5. Natural fibers (rayon, cotton, linen) absorb water and other substances more
easily than synthetic fibers, so they:
A) Dry more quickly and stain more easily
B) Dry more slowly and stain more easily
C) Dry more quickly and resist staining
D) Dry more slowly and resist staining
Correct Answer: B) Dry more slowly and stain more easily
Rationale: Natural cellulosic fibers absorb water readily, which causes them to dry
slowly and makes them more susceptible to staining.[reference:6]
6. The cotton plant produces fibers from the:
A) Stem
B) Root
C) Seed pod
D) Leaf
Correct Answer: C) Seed pod
Rationale: Cotton fibers are produced from the seed pod (boll) of the cotton
plant.[reference:7]
3
, 7. Lignin is the binder in cellulose materials that dissolves in water to cause stains
called:
A) Protein browning
B) Oleophilic yellowing
C) Cellulosic browning
D) Oxidation stains
Correct Answer: C) Cellulosic browning
Rationale: Lignin is the natural binder in cellulosic fibers. When these fibers are
over-wet and dried slowly, lignin oxidizes and causes a brown discoloration
known as cellulosic browning.[reference:8][reference:9]
8. Fibers that easily absorb water and should not be over-wetted are:
A) Wool and silk
B) Rayon and cotton
C) Polyester and nylon
D) Olefin and acrylic
Correct Answer: B) Rayon and cotton
Rationale: Rayon and cotton are highly absorbent cellulosic fibers that can lose
strength, shrink, or develop cellulosic browning when over-wetted.[reference:10]
9. Acetate fibers will dissolve in solvent-based chemicals containing:
A) Water
4
CERTIFICATION EXAM STUDY GUIDE] | VERIFIED PRACTICE
QUESTIONS WITH CORRECT ANSWERS
& DETAILED RATIONALES | COMPLETE FIBER IDENTIFICATION,
CLEANING METHODS, SPOTTING TECHNIQUES & FABRIC
PROTECTION PREP LATEST UPDATE 2026/2027
TABLE OF CONTENTS
1: FIBER IDENTIFICATION & ANALYSIS ...................... Questions 1-50
2: FABRIC CONSTRUCTION & STYLES ........................ Questions 51-75
3: SOIL, CLEANING CHEMISTRY & METHODS .................. Questions 76-120
4: SPOTTING & STAIN REMOVAL TECHNIQUES ................ Questions 121-170
5: PRE-TESTING & PROBLEM PREVENTION ................... Questions 171-200
6: UPHOLSTERY PROCEDURES & TECHNIQUES ................. Questions 201-230
7: FABRIC PROTECTION & AFTER-CLEANING TREATMENTS ..... Questions 231-250
1: FIBER IDENTIFICATION & ANALYSIS
1. Which fiber is a natural protein fiber commonly used in upholstery and is
known for good dye uptake and dimensional stability?
A) Polyester
B) Nylon
C) Wool
D) Olefin
Correct Answer: C) Wool
Rationale: Wool is a natural protein fiber with excellent dye affinity and good
dimensional stability compared with many plant fibers; polyester and nylon are
synthetic; olefin is synthetic polyolefin.[reference:0]
2. The term "pile" on upholstery fabric refers to:
1
,A) The backing material
B) Yarn twist
C) The raised surface fibers or loops
D) The thread count
Correct Answer: C) The raised surface fibers or loops
Rationale: Pile describes the raised surface (cut or looped) of fabrics such as
velvet or chenille; backing, yarn twist, and thread count are different
characteristics.[reference:1]
3. When performing a fiber identification test for protein vs. cellulose fibers,
which simple burn test observation indicates a protein fiber?
A) Burns slowly, smells like burning paper, leaves a grayish ash
B) Burns quickly with no odor, forms a hard bead
C) Burns slowly, smells like burning hair or feathers, leaves a brittle crushable ash
D) Melts and droplets form
Correct Answer: C) Burns slowly, smells like burning hair or feathers, leaves a
brittle crushable ash
Rationale: Protein fibers such as wool and silk emit a characteristic hair-like, acrid
odor when burned and leave a brittle, crushable ash.[reference:2][reference:3]
4. Fabrics frequently are made from a blend or combination of:
A) Yarns
B) Fibers
C) Threads
2
,D) Polymers
Correct Answer: B) Fibers
Rationale: Fabrics are frequently made from a blend or combination of different
fibers to achieve specific performance characteristics.[reference:4][reference:5]
5. Natural fibers (rayon, cotton, linen) absorb water and other substances more
easily than synthetic fibers, so they:
A) Dry more quickly and stain more easily
B) Dry more slowly and stain more easily
C) Dry more quickly and resist staining
D) Dry more slowly and resist staining
Correct Answer: B) Dry more slowly and stain more easily
Rationale: Natural cellulosic fibers absorb water readily, which causes them to dry
slowly and makes them more susceptible to staining.[reference:6]
6. The cotton plant produces fibers from the:
A) Stem
B) Root
C) Seed pod
D) Leaf
Correct Answer: C) Seed pod
Rationale: Cotton fibers are produced from the seed pod (boll) of the cotton
plant.[reference:7]
3
, 7. Lignin is the binder in cellulose materials that dissolves in water to cause stains
called:
A) Protein browning
B) Oleophilic yellowing
C) Cellulosic browning
D) Oxidation stains
Correct Answer: C) Cellulosic browning
Rationale: Lignin is the natural binder in cellulosic fibers. When these fibers are
over-wet and dried slowly, lignin oxidizes and causes a brown discoloration
known as cellulosic browning.[reference:8][reference:9]
8. Fibers that easily absorb water and should not be over-wetted are:
A) Wool and silk
B) Rayon and cotton
C) Polyester and nylon
D) Olefin and acrylic
Correct Answer: B) Rayon and cotton
Rationale: Rayon and cotton are highly absorbent cellulosic fibers that can lose
strength, shrink, or develop cellulosic browning when over-wetted.[reference:10]
9. Acetate fibers will dissolve in solvent-based chemicals containing:
A) Water
4
