can someone tell me if my answers are correct or not? thank you :)

Question

If your sewing machine were skipping stitches,wat would u check first?
A.bobbin stitches
B.needle setting
C.thread type
D.tucker
my answer:A

How do you secure the beginning and end of every seam?
A.add a double-stitch tailor tack to each end.
B.press it with a starch.
C.back-tack three stitches at each end.
D.stay stitch the ends.
my answer:C

If,while your machine stitching, your fabric puckers and the stitches break, what should you do first?
A.change the needle
B.change the thread
C.lower the tention
D.raise the tention
my answer:C

Answer 1

Those look correct to me.

Answer 2

1.B
2.A
3.D