10) What is the thing called that you put the spool of thread on?
11) What keeps the spool from popping off when sewing?
12) What is the pre-tensioner?
13) When winding a bobbin, how do you insert the thread into the bobbin?
14) When you insert the bobbin into the bobbin compartment, what
do you have to make sure you do with the thread?
15) What are the tension disks?
16) Why do you hold the thread still at the top when threading the machine?
17) What is the take up lever?
18) How do you get the take up lever to come to the top?
19) What needs to be lowered in order to start sewing?
20) How do you lower it?
