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CAP Tapissier d’ameublement en siège: foundations study materials
CAP Tapissier d’ameublement en siège: foundations study resources

CAP Tapissier d’ameublement en siège: foundations practice questions

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Question 1Styles and frame assessment

Under the Louis XV stylistic classification, what fundamental design feature distinguishes a *fauteuil en cabriolet* from a *fauteuil à la reine*?

  1. A concave, curved backrest designed to follow the human back, whereas the *fauteuil à la reine* has a flat backrest Correct answer.
  2. A flat backrest intended to stand against wall paneling, whereas the *fauteuil à la reine* features an arched dome
  3. Rigidly straight turned legs, whereas the *fauteuil à la reine* features asymmetrical cabriole legs
  4. An entirely upholstered enclosed arm cheek (*joue pleine*), whereas the *fauteuil à la reine* has open armrests

Explanation

A *fauteuil en cabriolet* is characterized by a concave, inward-curving backrest (*dossier cintré en plan*) designed to be placed freely in the center of intimate conversation salons. In contrast, the *fauteuil à la reine* features a flat, rigid vertical backrest designed specifically to be arranged symmetrically along salon wall panelling (*boiseries*).

Question 2Styles and frame assessment

In traditional chair joinery (*menuiserie en sièges*), what is the structural role of the seat rail known as *la ceinture*?

  1. It caps the crest rail of the backrest to secure decorative finials
  2. It connects the legs, braces the seat opening, and receives the tacks for webbing, canvas, and final covering Correct answer.
  3. It serves as a removable wooden wedge placed under the cushion to tilt the seat forward
  4. It acts as the padded wooden support underneath the upholstered armrest

Explanation

*La ceinture* (seat rail frame) forms the primary horizontal perimeter of the seat. Joined to the front and rear legs via mortise-and-tenon joints, it withstands downward seating loads and contains the inner rebate (*feuillure*) where webbing, heavy burlap, and decorative fabrics are tacked.

Question 3Styles and frame assessment

Which leg form is the most ubiquitous and defining decorative hallmark of a Neoclassical Louis XVI style armchair?

  1. An S-curved cabriole leg ending in an inverted acanthus leaf or deer hoof (*pied de biche*)
  2. A front leg carved as a heavy gilded lion's paw emerging from an eagle wing
  3. A straight, tapered leg with vertical hollow fluting (*pied droit fuselé à cannelures*) Correct answer.
  4. A turned spiral barley-twist leg without tapering

Explanation

Louis XVI furniture broke away from Rococo curves by embracing Greco-Roman Neoclassicism. Its iconic leg is straight, circular or tapered (*fuselé*), and ornamented with vertical hollow flutes (*cannelures*), often filled at the base with cable moldings (*rudentures*).

Question 4Styles and frame assessment

What is the technical trade term for the small, upholstered cushions fastened directly onto the horizontal wooden armrests of an open armchair (*fauteuil*)?

  1. Les lambrequins
  2. Les crapauds
  3. Les traverses
  4. Les manchettes Correct answer.

Explanation

*Les manchettes* are small upholstered pads mounted onto the top of the wooden armrests (*accotoirs*). They provide forearm comfort while leaving the carved wooden structural supports of the arm uprights exposed.

Question 5Styles and frame assessment

Which combination of materials and decorative motifs exemplifies seat furniture produced during the French Empire period (1804–1814)?

  1. Dark mahogany frames decorated with gilded bronzes depicting winged sphinxes, swans, and laurel wreaths Correct answer.
  2. Natural waxed beech frames carved with asymmetric shells, water lilies, and rockery motifs (*rocaille*)
  3. Light lemonwood frames inlaid with light purplewood ribbons and romantic floral bouquets
  4. Carved oak frames with pierced Gothic arches, trefoils, and linenfold tracery

Explanation

Empire style furniture commissioned under Napoleon I utilized dark Cuban or Honduran mahogany (*acajou*), rigid architectural geometry, and chiseled ormolu bronzes featuring imperial iconography: winged victories, sphinxes, Egyptian heads, swans, and bees.

Question 6Styles and frame assessment

In classical seat carpentry, what is *la feuillure* and why is it essential for the tapissier?

  1. A decorative gilded leaf applied with rabbit-skin glue along the exterior crest rail
  2. A stepped recessed rebate milled along the inner edge of rails to receive and conceal the edges of webbing, canvas, and tacks Correct answer.
  3. A specialized metal brace mortised into rear legs to prevent frame racking
  4. The convex curve carved along the front apron of a Louis XV commode or seat

Explanation

*La feuillure* is an L-shaped rebate or step cut into the inner perimeter of the seat rails and backrest frame. It provides a dedicated surface where the upholsterer drives tacks (*semences*) so that the webbing, stuffing canvas, and fabric edges finish flush with or just below the exposed carved woodwork.

Question 7Styles and frame assessment

What is the primary physical characteristic that differentiates a traditional French *bergère* from a standard *fauteuil*?

  1. It features six legs instead of four to support a heavier sprung seat frame
  2. It has no backrest whatsoever, functioning strictly as a long daybed
  3. The space between the armrest and the seat rail is enclosed by solid upholstered sides (*joues pleines*) Correct answer.
  4. Its frame is made exclusively of wrought iron rather than solid hardwood

Explanation

A *bergère* is a wide, comfortable armchair where the space between the armrests (*accotoirs*) and the seat rail (*ceinture*) is completely filled with upholstered padding (*joues*), preventing drafts. Standard *fauteuils* leave this space open.

Question 8Styles and frame assessment

Which architectural backrest design is a prominent trademark of seating produced during the French Directoire period (1795–1799)?

  1. A completely circular pierced medallion inspired by Louis XVI court portraits
  2. A tall, heavily tufted rectangular backrest with deeply padded ear wings
  3. An asymmetrical shell-topped backrest carved with water droplets
  4. A backrest that rolls backward at the top crest into a flared scroll (*dossier renversé à crosse*) Correct answer.

Explanation

The Directoire period favored austere, archeologically inspired antique forms. Its most recognizable innovation was the *dossier renversé à crosse*, where the upper portion of the backrest curves gracefully backward like a scroll or crozier, often combined with saber rear legs (*pieds en sabre*).

Question 9Styles and frame assessment

A client brings an early 19th-century armchair made of bird's-eye maple with dark amaranth inlays, soft rolling curves, and cornucopia arm supports. Which French style does this seat represent?

  1. Restauration (Charles X) Correct answer.
  2. Louis XIV
  3. Art Déco 1925
  4. Empire

Explanation

The Restauration period (especially under Charles X, 1824–1830) is famous for replacing dark imperial mahogany with luminous native blond woods-bird's-eye maple (*érable moucheté*), lemonwood, and ash-contrasted with delicate dark inlays (*filets d'amarante*) and gentle, lyrical curves such as cornucopias (*cornes d'abondance*).

Question 10Styles and frame assessment

What is the defining anatomical configuration of a French *fauteuil Voltaire*, popular throughout the 19th century?

  1. A low, armless circular fireside chair covered in long bullion fringes
  2. A high, inclined backrest contoured at the lumbar region with generous padding and padded armrests on curved supports Correct answer.
  3. A rigid, straight-backed throne-like seat covered in heavy embossed Cordoba leather
  4. A three-legged corner chair designed specifically to accommodate voluminous hoop skirts

Explanation

The *fauteuil Voltaire* was conceived during the Louis-Philippe era for relaxed reading and sickroom comfort. It features a tall, backward-slanted backrest with pronounced lumbar padding, an integrated headrest area, and thickly padded armrests mounted on gently curved wooden supports.

Question 11Styles and frame assessment

In 1930s French upholstery, what cover material and crest rail profiles are synonymous with the authentic artisanal *Fauteuil Club*?

  1. Printed floral chintz cotton with an open Gothic cathedral pointed arch crest
  2. Fine silk lampas fabric with an oval medallion crest rail
  3. Synthetic vinyl leatherette with a strictly rectangular steel rod frame
  4. Vegetable-tanned sheepskin (*cuir de basane*) with crest profiles shaped like a mustache (*moustache*) or gendarme hat (*chapeau de gendarme*) Correct answer.

Explanation

The genuine French *Fauteuil Club* of the Art Déco era is upholstered in full-grain, vegetable-tanned sheepskin known as *basane*, hand-patinated with wax. Its backrest crest rails are categorized into iconic shapes: *moustache*, *chapeau de gendarme*, and *rond* (round).

Question 12Styles and frame assessment

When examining the wooden skeleton of an upholstered backrest, what are the vertical structural uprights and top horizontal cross-rail called?

  1. Les accotoirs (armrests) and les traverses de ceinture (seat rails)
  2. Les montants de dossier (vertical stiles) and le chapeau de dossier (crest rail) Correct answer.
  3. Les dés de raccordement (corner dice) and les sabots (foot ferrules)
  4. Les chantignoles (brackets) and les tasseaux (cleats)

Explanation

In French chair carpentry, the vertical frame members forming the backrest sides are called *les montants de dossier* (often continuous with the rear legs). The top horizontal member connecting them is called *le chapeau de dossier* or *traverse supérieure*.

Question 13Styles and frame assessment

What is the function of *les taquets d'angle* (corner blocks) glued and screwed inside the corners of a seat frame?

  1. They provide anchor points for electrical wiring in modern massage chairs
  2. They act as decorative rosettes visible from the outside of the chair
  3. They reinforce the mortise-and-tenon leg-to-rail joints against racking forces caused by user movement Correct answer.
  4. They hold the excess jute webbing scraps to prevent waste

Explanation

*Les taquets d'angle* (corner blocks or corner braces) are triangular wooden blocks fitted inside the 90° junctions of the seat rails (*ceintures*). Glued and screwed into position, they prevent lozenging and racking under lateral stresses.

Question 14Styles and frame assessment

Which visual and technical contradiction distinguishes furniture of the French 'Transition' period (circa 1760–1774)?

  1. Wrought iron industrial bases supporting Renaissance floral tapestries
  2. A straight, rectangular seat frame or Neoclassical backrest perched upon gently curved Rococo cabriole legs Correct answer.
  3. Gothic pointed arch carvings framed by heavy Egyptian sphinx bronze capitals
  4. Completely spherical ball legs supporting severe Directoire crosse backrests

Explanation

The Transition style represents the stylistic evolution between Louis XV Rococo and Louis XVI Neoclassicism. Craftsmen retained the sinuous curved cabriole leg (*pied galbé*) of Louis XV while adopting the straight horizontal rails, Greek key friezes, and symmetrical rectangular backrests of early Neoclassicism.

Question 15Styles and frame assessment

What is the difference in furniture taxonomy between a *marquise* and a *duchesse brisée*?

  1. A *marquise* is a six-legged daybed with two headrests; a *duchesse brisée* is a low armless circular prayer chair
  2. A *marquise* is made strictly of unpadded cane; a *duchesse brisée* is upholstered only in leather
  3. A *marquise* is an extra-wide, deep armchair meant for two people; a *duchesse brisée* is a two- or three-piece chaise longue consisting of an armchair and matching footstool/bench Correct answer.
  4. A *marquise* has an adjustable mechanical ratchet backrest; a *duchesse brisée* is carved from stone

Explanation

A *marquise* is an oversized, wide *bergère* designed to comfortably seat two people (or one person in wide hoop-petticoat court dresses). A *duchesse brisée* (literally 'broken duchess') is a modular chaise longue composed of two or three separable elements: an armchair (*fauteuil* or *bergère*) paired with an elongated footrest (*bout de pied* or *banquette intermédiaire*).

Question 16Traditional upholstery foundations

Which specialized hand tool is employed by the upholsterer to exert powerful levered tension on jute webbing before tacking it to the wooden rail?

  1. Le tire-sangle (webbing stretcher) Correct answer.
  2. Le ramponneau
  3. Le carrelet
  4. Le tire-crin

Explanation

*Le tire-sangle* (web stretcher) is a wooden lever tool (often rubber-padded or grooved at the contact foot) that grips the jute webbing strip and levers against the seat rail, allowing the tapissier to pull the webbing drum-tight before hammering tacks.

Question 17Traditional upholstery foundations

What is the standard material and geometry of traditional upholstery springs used in French sprung seating (*garnissage à ressorts*)?

  1. Cylindrical straight coils made of unhardened raw brass wire
  2. Flat serpentine zig-zag wires made of cold-rolled aluminum
  3. Biconical hourglass-shaped coils made of copper-plated tempered steel wire (*ressorts biconiques en fil d'acier cuivré*) Correct answer.
  4. Spiral clockwork torsion ribbons made of cast iron

Explanation

Traditional French seating utilizes biconical hourglass springs (*ressorts biconiques*). Made of copper-plated high-carbon steel wire to resist corrosion, their hourglass profile allows them to compress axially without the coils rubbing or clashing against each other.

Question 18Traditional upholstery foundations

What is the technical purpose of the heavy jute canvas called *la toile forte* placed directly over tied springs?

  1. It serves as the final decorative show fabric visible to the user
  2. It acts as a vapor barrier preventing air moisture from reaching the wood frame
  3. It replaces the need for jute webbing under the seat
  4. It isolates the springs, supports the vegetable stuffing, and creates the foundational plane for the seat profile Correct answer.

Explanation

*La toile forte* (heavy jute canvas, approx. 380–420 g/m²) is stretched tightly over the tied spring assembly and nailed to the inner rails with 14 mm tacks. The springs are then stitched to it with twine loops, forming a solid foundation for the horsehair stuffing.

Question 19Traditional upholstery foundations

From which botanical source is traditional upholstery vegetable hair (*crin végétal*) harvested?

  1. The shredded, twisted, and dried leaf fibers of the dwarf fan palm (*Chamærops humilis*) Correct answer.
  2. The hollow seed pods of cotton plants (*Gossypium*)
  3. The inner bark fibers of the weeping willow tree
  4. The dried husks of coconut shells treated with sulfur

Explanation

*Crin végétal* (vegetable horsehair) is derived from the dwarf fan palm (*Chamærops humilis*), native to North Africa and the Mediterranean basin. The leaves are combed, spun into tight cords to induce curl and springiness, and dried, providing an inexpensive, rot-resistant, resilient padding foundation.

Question 20Traditional upholstery foundations

What is *la toile blanche* in traditional French seat upholstery and at what stage is it applied?

  1. A disposable protective paper drop sheet used to keep the workbench clean
  2. A tightly woven unbleached cotton calico canvas applied over the animal hair layer (*crin animal*) before final fabric Correct answer.
  3. A bleached linen cover placed under the chair legs to prevent floor scratching
  4. The initial canvas layer tacked directly beneath the wooden frame

Explanation

*La toile blanche* is a dense, plain-weave unbleached cotton fabric (calico). Applied during the *mise en blanc* stage over the teased animal hair (*crin animal cardé*), it shapes and compresses the padding into its final smooth ergonomic contour before the show fabric is fitted.

Question 21Traditional upholstery foundations

Why is it mandatory to weave jute webbing strips in an over-and-under checkerboard pattern (*entrecroisement en damier*) across the bottom of the seat frame?

  1. To create decorative squares visible to people walking underneath the chair
  2. To prevent woodworm from traveling between front and rear rails
  3. To interlock perpendicular bands so that concentrated loads are distributed across the entire frame rather than sagging individual strips Correct answer.
  4. To reduce the required tension by half, saving the tapissier physical effort

Explanation

Interlacing jute webbing in a checkerboard (*damier*) pattern creates a unified load-bearing membrane. When an occupant sits down, the downward force on any individual spring is transferred and shared among all intersecting longitudinal and transverse webbing strips.

Question 22Traditional upholstery foundations

Under what circumstance would an upholsterer tie the springs with a concave hollow (*en cuvette*) rather than a domed crown (*en bosse*)?

  1. When the chair frame has broken rear legs that cannot support downward weight
  2. When the seat is covered in slick leather that would cause the occupant to slide off
  3. When the chair is designed to receive a thick loose feather or down seat cushion (*coussin mobile*) Correct answer.
  4. When the customer explicitly requests an uncomfortable seat for short-duration visits

Explanation

Sprung seats designed for loose feather or down cushions (*coussins en plume ou duvet*) are guinded *en cuvette* (lower in the center than at the perimeter). This concave basin cradles the thick cushion, keeping it centered and preventing it from sliding forward.

Question 23Traditional upholstery foundations

Before stuffing vegetable hair onto the *toile forte*, the tapissier sews large loose loops of twine across the canvas. What are these called and what is their purpose?

  1. Les coulisses; they allow the tapissier to pull the springs tighter after the chair is finished
  2. Les ganses; they are decorative cords meant to peek through the weave of the burlap
  3. Les points d'arrêt; they lock the edges of the wood rails to prevent termite infestation
  4. Les lacets (bridles); they hold generous handfuls of vegetable hair securely in place while building up the stuffing mass Correct answer.

Explanation

*Les lacets* (bridles) are loose loops of twine stitched into the *toile forte* in rows. The upholsterer slips dense, combed handfuls (*poignées*) of vegetable hair (*crin végétal*) underneath these loops to hold the fiber in place and maintain an even distribution prior to covering with *toile d'embourrure*.

Question 24Traditional upholstery foundations

In the stitching of a traditional upholstery roll (*le bourrelet*), what is the function of blind stitches (*points perdus*)?

  1. They temporarily hold the front rail in place while the glue dries
  2. They compress and consolidate the vegetable hair deep inside the core behind the roll without creating visible thread indentations on the exterior edge Correct answer.
  3. They attach the exterior gimp to the wooden frame using clear monofilament
  4. They mark the center point of the seat for fabric pattern matching

Explanation

*Points perdus* (blind stitches) are internal consolidating stitches made with a double-pointed needle (*carrelet à deux pointes*). They compress the mass of vegetable hair backward away from the edge, creating a dense, firm backing that supports the crisp perimeter roll (*bourrelet*).

Question 25Traditional upholstery foundations

What is the primary role of the stitched roll (*le bourrelet piqué*) built along the perimeter of the seat rails?

  1. To provide an acoustic dampener that silences spring squeaking
  2. To create a secret channel where decorative cords can be pulled through
  3. To form a firm, durable, sharply defined architectural edge that supports user thighs and prevents the wood rail edge from wearing through the cover Correct answer.
  4. To hold emergency sewing needles for subsequent furniture repair

Explanation

*Le bourrelet* is the firm, sculpted roll of packed vegetable hair stitched with lock-stitches (*points noués*) and running stitches (*points avant*) directly above the wooden rebate. It protects the outer fabric from being cut by the sharp wooden corner and ensures the seat retains its crisp geometric profile for decades.

Question 26Traditional upholstery foundations

An upholsterer is calculating the length of hemp guindage cord (*corde à guinder*) required to tie a 9-spring seat (3 × 3 grid). The seat has 3 longitudinal lines of 50 cm span, 3 transverse lines of 50 cm span, and 4 diagonal stabilizing lines of 65 cm span. For this estimate, the job specification requires adding 40% extra length to each straight span to account for spring loops, flat knots, and rail anchoring. What is the total length of cord needed?

  1. 4.50 meters
  2. 7.84 meters (approx. 8 meters) Correct answer.
  3. 14.20 meters
  4. 2.20 meters

Explanation

Calculate linear spans: Longitudinal = 3 × 50 cm = 150 cm. Transverse = 3 × 50 cm = 150 cm. Diagonal = 4 × 65 cm = 260 cm. Total raw span = 150 + 150 + 260 = 560 cm (5.60 m). Adding the 40% allowance for tying knots, coil loops, and rail tacks: 5.60 m × 1.40 = 7.84 meters (rounded to 8 meters of hemp cord).

Question 27Traditional upholstery foundations

Why is a double-pointed straight needle (*carrelet à deux pointes*) indispensable when stitching the deep foundation of a traditional seat (*fondage*)?

  1. It allows two tapissiers to hold either end simultaneously to pull twice as hard
  2. Both tips are magnetized to automatically pick up fallen tacks
  3. It can be pushed down through the stuffing and pulled back up from beneath without having to flip the heavy armchair frame over Correct answer.
  4. It prevents the needle from ever bending when striking hardwood rails

Explanation

A *carrelet à deux pointes* has an eye positioned in the middle or has sharp points at both ends. This allows the tapissier to plunge the needle downward through the *toile d'embourrure* and horsehair, catch the lower burlap, and immediately return it upward without having to turn the chair upside-down.

Question 28Traditional upholstery foundations

What is the critical technical purpose of inserting a layer of carded cotton wadding (*ouate cardée*) between the *toile blanche* and the final silk or velvet cover?

  1. It acts as an electrical insulator to prevent static shocks from the metal springs
  2. It absorbs spilled beverages so the underlying horsehair stays dry
  3. It replaces the need for cleaning the chair throughout its lifespan
  4. It prevents stiff animal hair bristles from piercing through the weave of the decorative fabric while softening surface contours Correct answer.

Explanation

Curled animal hair (*crin animal*) contains stiff, pointed fibers that can slowly work their way through the fine yarns of luxury fabrics like damask or velvet ('percer la couverture'). A dense blanket of carded cotton or wool wadding creates an impenetrable buffer that stops fiber migration and provides a silky surface feel.

Question 29Modern padding and suspension

In modern contemporary upholstery, what does the technical acronym 'HR' designate when referring to polyurethane foam?

  1. Haute Résilience (High Resilience), characterized by an open cellular structure that rebounds instantly after compression Correct answer.
  2. Haute Résistance, indicating foam that cannot be cut with a utility blade
  3. Hydro-Répulsif, indicating foam treated for marine diving equipment
  4. Haute Rigidité, indicating completely unyielding rigid styrofoam

Explanation

HR stands for *Haute Résilience* (High Resilience). Polyurethane HR foams feature an irregular, open cellular matrix that gives them superior elasticity, high support factor, comfortable initial deflection, and exceptional resistance to permanent sagging over years of use.

Question 30Modern padding and suspension

What is the common name for continuous undulating S-shaped steel wire springs used extensively in contemporary chair suspensions?

  1. Ressorts Nosag (or ressorts zig-zag / sinueux) Correct answer.
  2. Ressorts biconiques
  3. Ressorts à volute
  4. Ressorts à lame de carrosse

Explanation

Nosag (sinuous or zig-zag) springs are flat undulating steel wire ribbons stretched horizontally across the frame and secured with lined steel clips (*charnières Nosag*). They provide a durable, low-profile suspension ideal for modern, slimline seat furniture.

Question 31Modern padding and suspension

Which professional cutting tool produces the cleanest, most perpendicular cut through a 12 cm thick block of High Resilience polyurethane foam?

  1. A dual-action electric foam cutter with counter-reciprocating serrated blades (*couteau électrique à mousse*) Correct answer.
  2. A standard woodworking hand ripsaw with wide offset teeth
  3. A handheld propane blowtorch flame cutter
  4. A mechanical paper guillotine with an unheated shear blade

Explanation

A specialized electric foam cutter (*scie à mousse*) features two thin, counter-reciprocating serrated blades mounted in a vertical guide column with a footplate. The opposed motion cancels out friction, gliding through thick foam without compressing or tearing the edges.

Question 32Modern padding and suspension

Why is it standard practice to bevel or chamfer (*chanfreiner*) the top perimeter edges of a foam cushion core before covering it?

  1. To reduce the weight of the furniture piece by at least 25%
  2. To prevent the sharp 90-degree foam corner from creating an unsightly ridge and causing premature fabric wear along the seam line Correct answer.
  3. To create air circulation channels that prevent the cushion from inflating like a balloon
  4. To allow the cushion to be folded in half for shipping in cardboard tubes

Explanation

*Le chanfreinage* (beveling) removes the razor-sharp 90° corner of the foam block at a 45° angle. When wrapped with wadding and pulled under fabric tension, the beveled edge forms a smooth, gentle curve that prevents friction hotspots and eliminates ridges along the piping.

Question 33Modern padding and suspension

What is *le jersey tubulaire* (tubular stockinette) and why is it pulled over the foam and wadding core before encasing it in a zippered cover?

  1. A water-repellent compression bandage applied to heal torn foam seams
  2. A decorative open-mesh fishnet trim exposed on modern club chairs
  3. A fireproof metallic mesh intended to ground electrostatic charges
  4. An elastic knitted cotton/synthetic sleeve that compresses the wadding smoothly and allows the decorative outer cover to slide on effortlessly during assembly Correct answer.

Explanation

*Le jersey tubulaire* is a seamless elastic knitted sleeve. Stretched over the foam block and wadding layer, it consolidates the fibers and creates a slick, friction-free exterior surface, allowing tight-fitting fabric or leather cushion covers to be zipped shut without catching or distorting.

Question 34Modern padding and suspension

Why is 100% viscoelastic 'memory foam' rarely used as the sole structural core for dining chairs or active armchairs?

  1. It has high hysteresis, slow recovery, and temperature-sensitive softening, leaving the sitter feeling trapped without dynamic elastic pushback Correct answer.
  2. It is toxic to breathe when touched by bare hands
  3. It cannot be cut by any blade known to modern engineering
  4. It dissolves completely when exposed to ambient room humidity

Explanation

Viscoelastic foam softens in response to body heat and recovers slowly (high hysteresis). If used alone for a chair seat, the occupant sinks into an unyielding pit that restricts postural shifts and offers zero supportive resilience (*élasticité dynamique*). It is strictly used as a thin comfort topper over a firm HR core.

Question 35Modern padding and suspension

When installing an array of Nosag zig-zag springs across a seat frame, what is the role of transverse tie cords or paper-wrapped steel wires (*fils de liaison*)?

  1. They ground lightning strikes that could hit the metal springs
  2. They link the individual sinuous springs together transversely, maintaining parallel spacing and distributing localized point loads across adjacent springs Correct answer.
  3. They serve as musical tuning wires to adjust the acoustic resonance of the chair
  4. They prevent the wooden frame from absorbing varnish

Explanation

Nosag springs flex independently under load. To prevent adjacent springs from spreading apart laterally and to distribute a concentrated human load across the whole suspension, tapissiers connect them horizontally with paper-wrapped steel tie wires (*fils de liaison*) clipped to each spring with metal clamps.

Question 36Modern padding and suspension

A contemporary sofa cushion core is constructed as a sandwich: an 8.0 cm base core of HR 38 kg/m³ foam, laminated between two 2.5 cm outer comfort layers of HR 30 kg/m³ foam. The entire assembly is wrapped on top and bottom with 150 g/m² polyester Dacron wadding that adds 1.0 cm uncompressed loft per face. Under the tension of the tailored fabric cover, the Dacron layers compress by 40%. What is the final finished thickness of the completed cushion?

  1. 14.2 cm Correct answer.
  2. 15.0 cm
  3. 12.0 cm
  4. 13.0 cm

Explanation

Calculate foam core thickness: Base core = 8.0 cm. Two comfort toppers = 2 × 2.5 cm = 5.0 cm. Total foam core = 8.0 + 5.0 = 13.0 cm. Next, calculate Dacron wadding: Two faces of 1.0 cm = 2.0 cm uncompressed. Since each layer compresses by 40%, it retains 60% of its thickness: 2.0 cm × 0.60 = 1.2 cm compressed wadding. Total finished thickness = 13.0 cm + 1.2 cm = 14.2 cm.

Question 37Modern padding and suspension

An upholsterer orders a custom rectangular foam slab for a banquet bench cushion measuring 180 cm length, 50 cm width, and 12 cm thickness. The foam specified is High Resilience polyurethane with a certified density of 40 kg/m³. What is the exact physical weight (mass) of this raw foam slab?

  1. 8.64 kg
  2. 4.32 kg Correct answer.
  3. 2.16 kg
  4. 10.80 kg

Explanation

Calculate volume in cubic meters: Length = 1.80 m, Width = 0.50 m, Height = 0.12 m. Volume = 1.80 × 0.50 × 0.12 = 0.108 m³. Calculate mass: Mass = Volume × Density = 0.108 m³ × 40 kg/m³ = 4.32 kg.

Question 38Furnishing fabrics,cutting and sewing

Why must fabric strips used for piping (*passepoil*) be cut strictly on the true bias at a 45-degree angle (*en plein biais*) to the fabric grain?

  1. Bias cuts use 50% less fabric than straight-grain cuts
  2. The 45-degree bias provides maximum mechanical stretch and flexibility, allowing the welt to wrap smoothly around curved chair rails without puckering or kinking Correct answer.
  3. The bias angle changes the color of the fabric to create a contrasting hue
  4. Thread cannot unravel from a bias edge even if left unstitched

Explanation

Woven fabrics have zero stretch along the warp (*chaîne*) and weft (*trame*). Cutting at a true 45° bias allows the yarns to scissor and flex, enabling the piping to negotiate sharp curves, corner bends, and serpentine seat frames smoothly without puckers, ripples, or twisting.

Question 39Furnishing fabrics,cutting and sewing

What is the traditional core material (*l'âme du passepoil*) around which the fabric bias strip is folded and sewn?

  1. A solid copper electrical wire
  2. A bundle of twisted telephone cables
  3. A pre-shrunk, soft-twisted braided cotton cord (*cordonnet en coton*) Correct answer.
  4. A flexible clear plastic drinking straw

Explanation

The core of high-grade upholstery piping is a supple, pre-shrunk braided cotton cord (*cordonnet coton*, typically 3 mm to 6 mm diameter). It provides a firm, resilient, uniform round profile that curves gracefully without cracking or degrading over time.

Question 40Furnishing fabrics,cutting and sewing

Which hand stitch is employed with a small curved needle to close outer arm rests (*extérieurs de manchettes*) or chair backs invisibly without showing any topstitching thread?

  1. Le point couché invisible (blind slip stitch / ladder stitch) Correct answer.
  2. Le point de chausson (cross stitch)
  3. Le point avant grossier (basting running stitch)
  4. Le point de boutonnière (buttonhole stitch)

Explanation

*Le point couché invisible* is executed using a fine curved needle (*aiguille courbe*). The needle alternately picks up two or three threads inside the folded crease of the face fabric and the base layer; when pulled taut, the thread disappears completely inside the fold, creating a clean, seamless closure.

Question 41Furnishing fabrics,cutting and sewing

In textile terminology, what distinguishes the warp (*la chaîne*) from the weft (*la trame*) on a woven fabric bolt?

  1. The warp consists of metallic threads; the weft consists strictly of natural animal hair
  2. The warp runs lengthwise parallel to the selvedges under loom tension; the weft runs crosswise perpendicular from selvedge to selvedge Correct answer.
  3. The warp is printed after weaving; the weft is woven without any dye
  4. The warp runs diagonally at 45 degrees; the weft runs in circular loops

Explanation

Warp yarns (*les fils de chaîne*) are mounted lengthwise on the loom under continuous tension, running parallel to the woven selvedges (*lisières*). Weft yarns (*les fils de trame*) are inserted perpendicularly across the width back and forth by the shuttle or rapier.

Question 42Furnishing fabrics,cutting and sewing

What is double piping (*passepoil double* or *ganse double*) and where is it primarily installed on furniture?

  1. A twin-cord welt sewn side-by-side used to conceal staples and raw fabric edges along the rebate of exposed wood antique chairs without decorative nails Correct answer.
  2. A reinforced maritime rope used to lash outdoor boat cushions to the deck
  3. A thick cable containing electrical heating elements for heated car seats
  4. A piping cord placed strictly inside cushions to double their stiffness

Explanation

*Le passepoil double* (double welting) consists of two parallel cords wrapped in a single strip of matching fabric. Glued or stapled into the wood rebate (*feuillure*), it conceals raw edges and fasteners on chairs with exposed wooden frames as an elegant alternative to braid (*galon*) or brass nails.

Question 43Furnishing fabrics,cutting and sewing

What is the structural weave definition of an authentic classical damask (*damas*) furnishing fabric?

  1. A pile fabric created by cutting raised velvet loops with a razor wand
  2. A reversible figured fabric where the pattern is formed by the contrast between warp-faced satin and weft-faced satin weave structures Correct answer.
  3. A plain muslin fabric hand-painted with acrylic dyes in India
  4. A non-woven felt produced by compressing wool fibers with steam

Explanation

Damask (*le damas*) is a monochrome figured fabric woven on a Jacquard loom. The design is revealed entirely by the play of light reflecting differently off contrasting satin weave structures-warp-satin for the glossy ground and weft-satin (or sateen) for the matte pattern figures (or vice versa).

Question 44Furnishing fabrics,cutting and sewing

Which specialized sewing machine presser foot is required to stitch tight, uniform seams immediately adjacent to the raised welt of a piping cord?

  1. A wide flat roller foot used for heavy leather soles
  2. An open-toe embroidery stippling foot with no feed-dog contact
  3. A grooved piping foot (*pied passepoilier*) with a concave tunnel underneath that rides over the cord Correct answer.
  4. A button-attaching clamp foot

Explanation

A piping foot (*pied passepoilier / pied ganseur*) features a hollowed semicircular channel (groove) milled into its underside. The groove rides smoothly over the enclosed piping cord while holding the needle right against the cord for a razor-tight, puckering-free seam.

Question 45Furnishing fabrics,cutting and sewing

A client commissions the reupholstery of 4 Louis XVI dining chair seats with plain, unpatterned velvet. Each seat requires a square cut of 65 cm × 65 cm (including pull allowances). The velvet bolt is 140 cm wide. Including a job-specified 10% safety margin for minor workshop adjustments, how much fabric meterage should be ordered?

  1. 2.90 meters
  2. 0.70 meters
  3. 1.45 to 1.50 meters Correct answer.
  4. 4.20 meters

Explanation

Analyze bolt layout: Across the 140 cm fabric width, two 65 cm cuts fit side-by-side (65 cm + 65 cm = 130 cm, within the 140 cm laize). To yield 4 seat cuts, 2 rows of cuts along the length are needed: 2 rows × 65 cm = 130 cm raw length. Adding a 10% safety allowance: 130 cm × 1.10 = 143 cm. Therefore, 1.45 to 1.50 meters of fabric is the exact professional requirement.

Question 46Finishing,care and prevention

What unique feature defines the upholsterer's specialized hammer, *le ramponneau*?

  1. It has a heavy 2-kilogram cast steel sledge head for splitting timber
  2. It has a slender, elongated double head: one magnetized face to pick up and start tacks single-handedly, and an opposite non-magnetic face or nylon tip to drive them home Correct answer.
  3. It has a hollow handle filled with water to keep the craftsman cool
  4. It features a sharp axe blade on one side for felling beech trees

Explanation

*Le ramponneau* is the signature tool of the tapissier. Its head is elongated and slender to reach into tight frame rebates. One side features a magnetized pole that picks up a cut tack from the tray, allowing the tapissier to position and tap it with one hand while holding fabric tension with the other.

Question 47Finishing,care and prevention

Which stripping tool (*outil de dégarnissage*) features a notched, curved claw used to lever old tacks and staples out of antique frames without bruising the wood?

  1. Le ciseau à bois droit
  2. La râpe de maréchal-ferrant
  3. Le pied-de-biche (claw chisel / tack lifter) Correct answer.
  4. Le maillet de fer blanc

Explanation

*Le pied-de-biche* (or *ciseau dégarnisseur coudé*) features an offset, curved neck and a V-notched bevel. It slips underneath stubborn tacks and lifts them by levering against a leather pad without marring the fragile antique beechwood rebate.

Question 48Finishing,care and prevention

What is *le jaconas* (or *la toile de fond*) in French upholstery work?

  1. A thick horsehair pad placed on top of the seat cushion
  2. A waterproof tarp used to transport armchairs in open pickup trucks
  3. A decorative silk ribbon wrapped around the legs during exhibitions
  4. A lightweight glazed black or neutral cotton/linen fabric tacked to the underside of the seat frame to seal against dust and conceal the webbing and springs Correct answer.

Explanation

*Le jaconas* (dust cover) is a lightweight, tightly woven glazed cotton or cambric cloth. Tacked cleanly with small 6 mm tacks or staples to the underside of the seat rails as the very final step, it hides the internal webbing and prevents dust, moths, and loose horsehair particles from falling to the floor.

Question 49Finishing,care and prevention

What is the specific function of the sharp, awl-like rod called *le tire-crin* (regulator)?

  1. It is inserted through the canvas to tease, redistribute, and level uneven horsehair stuffing beneath the surface before stitching Correct answer.
  2. It is used to drill pilot holes for large lag bolts in chair legs
  3. It pulls stubborn sewing machine needles out of jammed motor gears
  4. It punches holes in leather belts worn by workshop apprentices

Explanation

*Le tire-crin* (upholstery regulator) is a tapered, blunt-pointed steel rod with a flattened spatula or ring handle. The upholsterer pierces it through the *toile d'embourrure* or *toile blanche* to manipulate, level, and draw horsehair into corners or hollow spots to ensure a perfectly uniform density.

Question 50Finishing,care and prevention

What is *un galon* (or *une lézarde*) in French soft furnishing and upholstery?

  1. A species of tropical lizard whose skin is used for luxury stools
  2. A narrow decorative woven textile ribbon or braid applied along frame rebates to mask raw fabric edges and staples Correct answer.
  3. A wooden dowel used to peg loose tenons
  4. A large brass upholstery nail with an embossed floral head

Explanation

*Le galon* is a narrow, flat woven textile trimming braid; a *lézarde* is a serpentine or wavy variant of it. They are applied over the raw fabric cut line and staples in the wood rebate using hidden 6 mm tacks or specialized hot-melt adhesive, providing an exquisite, clean border finish.