Seams and Seams allowance review

What is the standard seam allowance measurement used when sewing seams unless otherwise specified?

• ½ inch

• ¾ inch

• ⅝ inch

• 1 inch

Answer explanation

The standard seam allowance measurement used in sewing is ⅝ inch, which is commonly accepted for most patterns unless otherwise specified. This allows for adequate fabric handling and seam strength.

Which seam finish is specifically used to keep the raw edges of the seam allowance from fraying or unraveling?

• Pinked Edge

• Zig Zag

• Turned & Stitched

• Gather

Answer explanation

The Zig Zag seam finish is specifically designed to prevent raw edges from fraying or unraveling. It creates a zigzag pattern along the edge, securing the fabric and enhancing durability.

What is the first step in creating a plain seam?

• Press the seam open

• Pin the fabric with right sides together

• Cut the fabric edges

• Sew the fabric using a zigzag stitch

Answer explanation

The first step in creating a plain seam is to pin the fabric with right sides together. This ensures the pieces are aligned correctly before sewing, which is essential for a neat and accurate seam.

When using pinking shears to finish a seam, what is the main purpose of this technique?

• To create a decorative edge

• To prevent unraveling of fabrics that ravel slightly

• To shorten the fabric length

• To create a hem

Answer explanation

The main purpose of using pinking shears is to prevent unraveling of fabrics that ravel slightly. The zigzag edge created by the shears helps to secure the fabric and reduce fraying, making it a practical finishing technique.

What is the purpose of clipping the seam allowance when sewing inward facing curves?

• To create a decorative edge

• To allow the fabric to lay flat when pressed

• To shorten the length of the seam

• To prevent fabric from fraying

Answer explanation

Clipping the seam allowance on inward facing curves helps the fabric to lay flat when pressed. This technique reduces bulk and allows for a smoother finish, making it essential for achieving a professional look in sewing.

What type of stitch is recommended for gathering fabric?

• A) Zigzag stitch

• B) Basting stitch

• C) Straight stitch

• D) Overlock stitch

Answer explanation

The basting stitch is recommended for gathering fabric because it creates long, loose stitches that can be easily pulled to gather the fabric. Other stitches, like zigzag or straight, do not allow for this flexibility.

In the hemming process, how much should the bottom raw edge of the fabric be folded up initially?

• 1 inch

• 0.5 inch

• 2 inches

• 1.5 inches

Answer explanation

In the hemming process, folding the bottom raw edge of the fabric up by 0.5 inch is standard. This allows for a neat finish without excessive bulk, making it the correct choice compared to the other options.

Why is it important to not backstitch when creating gathering stitches?

• To save thread

• To allow for easy gathering of fabric

• To reinforce the seam

• To create a decorative effect

Answer explanation

Not backstitching when creating gathering stitches is important because it allows for easy gathering of fabric. Backstitching would secure the threads, making it difficult to pull and gather the fabric as intended.

What should be done after sewing a plain seam before proceeding with any seam finish?

• Cut the fabric edges

• Press the seam open

• Pin the fabric again

• Sew a zigzag stitch

Answer explanation

After sewing a plain seam, it is essential to press the seam open. This helps to set the stitches and ensures a flat seam, which is crucial before applying any seam finish.

When creating a turned and stitched seam finish, how much should the raw edges of the seam allowance be turned under before stitching?

• ½ inch

• ¼ inch

• 1 inch

• ⅛ inch

Answer explanation

For a turned and stitched seam finish, the raw edges should be turned under by ¼ inch before stitching. This allows for a neat finish and prevents fraying, making ¼ inch the correct choice.