Yes, DK weight (also called double knitting) is 8 ply yarn
In the UK, worsted weight yarn corresponds to 10ply (i.e. heavy DK or light aran yarn)
DK stands for Double Knitting. You can find a comparison chart for yarns at Craft Yarn Council's web site. DK yarn (#3) is a little thinner than worsted weight (#4) which may or may not be important, depending on what you're making. When in doubt, make a gauge swatch with the yarn and hook you plan to use for your project.
About 2kg of dk (worsted) yarn, depending on how much drape you want. This is quite generous.
4ply is NOT a yarn weight. Many 4ply yarns in the US are worsted weight. DK is a lighter yarn weight.
Double Knitting (DK) is a yarn weight. You would have to have a 4 ply that is DK weight in order for it to come out the size you expect.
Double Knitting (DK) is a yarn weight. You would have to have a 4 ply that is DK weight in order for it to come out the size you expect.
Alternative yarn choices: Patons Symphony or Wool Tweed DK
No, Cascade 220 is worsted weight (a little heavier than DK).
Yes. It isn't the number of plies that determine whether a yarn is called DK (double knitting weight), but the over all thickness of the yarn. Plus, you don't necessarily have to use DK yarn to double knit. Any two yarns of matching thickness can be used. You should check your pattern for the correct gauge and weight of yarn to make sure the finished garment will fit as expected.
Double knitting refers to the "weight" of the yarn--how 'thick' is the yarn. DK or double knit is a a light worsted weight yarn. DK typically makes 5-6 stockinette stitches per inch when knitting. For crochet, you would generally us an "I-sized" hook (4.5 to 5.5mm). Also, you would get approximately 3-4 single crochets to the inch, in gauge. Of course, adjusting your gauge to fit the pattern requirements--generally by changing the size of your hook, either larger or smaller.
do you mean dk or double knit yarn ? if so this is basically equal to USA sport yarn. It is non American version and knits at between 5-6 stitches to the inch using a number 5 - 6 needle ........ OR ..... did you mean just using the yarn double as in using two strands at once? if your pattern says use the yarn double then just use two strands at once by pulling from two skeins and holding both threads together when your work .