Apparel Designing Questions and Answers

Answer: C

The bobbin in a sewing machine is held by the oscillating hook, which carries the bobbin case beneath the needle plate and catches the upper thread loop to form the lock stitch. So the answer is the oscillating hook.

The feed dog is the toothed part that moves the fabric forward after each stitch. The pressure foot holds the fabric down against the feed dog. The thread take-up lever pulls up slack upper thread to tighten the stitch. None of these three holds the bobbin.

Answer: B

For a unidirectional fabric (one with a nap, pile or one-way print) all pattern pieces must be laid in the same direction. This is possible with a lengthwise fold (ii), a double fold (iii) and an open layout (iv), where the pieces can be placed facing one way. So the answer is (ii), (iii), (iv).

A crosswise fold (i) brings the top and bottom of the fabric face to face, so the nap or print of the two layers runs in opposite directions on the cut pieces. For that reason every option that includes (i) is wrong.

Answer: A

Both statements are false according to the key. Necklines are finished with a true bias strip, cut at 45 degrees to the grain, which has the stretch needed to curve round the edge. A garment bias is a diagonal edge of a garment piece, not a strip cut for the purpose, so the claim that both are used for finishing is not accepted.

The reason is also false because the stretch is not the same: a true bias strip has the maximum stretch, while a garment bias stretches less and unevenly. Hence option A, both false, is the answer.

Answer: B

The key gives the order interfacing (b), underlining (c), interlining (a), lining (d). Interfacing is applied first to the parts that need shaping and stiffening, such as collars, facings and cuffs. Underlining is attached to the fashion fabric pieces before the garment is assembled, interlining is placed between the fabric and the lining for warmth or body, and lining is put in last to cover all the inside work.

The other orders start with interlining or lining, which cannot be done before the outer fabric work, or put lining before the other layers, and so are wrong.

Answer: C

The key matches (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii). Diagonal basting is a temporary stitch used to hold layers together until the final stitching. Hemming is a permanent stitch which fixes the hem. Herringbone stitch is the decorative stitch of the list, and the buttonhole stitch is both functional (it finishes the cut edge) and decorative.

The other codes make diagonal basting permanent or decorative, which contradicts its temporary nature. So option C is the answer.

Answer: C

A tunnel finisher passes garments hung on hangers through a steam chamber on a conveyor and then through a drying zone, so one operator loading the hangers can finish hundreds of garments at one time. A steam dolly is used for a single garment at a time, and a suction counter table is a pressing table with vacuum used for one piece at a time by hand. The carousel jeans finisher handles a limited number of pairs at once. The answer is the tunnel finisher.

Answer: B

For export of children's clothing, buyers require tests that concern safety: zipper strength, snap strength (so that a child cannot detach the part and swallow it) and needle detection (to ensure no broken needle is left in the garment). These three are the ones the key counts as mandatory. Seam strength is a general quality test and not one of the safety tests, so the options that include it are rejected. The answer is I, II and III.

Answer: C

Spools and cops are the packages that are unsuitable for industrial machines: spools are small, used for domestic sewing, and cops are the conical bobbins taken off the spinning frame, meant for weaving shuttles and not for industrial sewing. Cones and vicones, wound on tapered tubes, run off fast and in large lengths, and so suit industrial sewing machines. The answer is I and II (spools and cops).

Answer: A

Pattern engineering divides awkwardly shaped pattern pieces into two pieces so that they can be fitted better on the marker, which raises marker efficiency. So the assertion is correct, and the reason, which states how pattern engineering works, is also correct. The answer is that both are correct. Cutting a difficult piece into two parts at the planning stage, as done in pattern engineering, lets the pieces nest tightly on the marker and so cuts the waste of fabric. This is why the assertion and its reason both hold, and the options calling either one incorrect are rejected.

Answer: A

A dart can be moved to another position, for example from the side seam to the shoulder, without changing the fit, because the dart's angle (the amount of fullness it removes) is kept the same when it is shifted. So the assertion is correct, and the reason that shifting the dart does not change its angle explains it. Both are correct. The amount of fullness a dart takes out depends on its width and angle, and the same fullness can be removed from a different place so long as that angle is kept. This is the principle of dart manipulation in pattern making, which is why the reason is correct and explains the assertion.