First:
file eb-5.2.4-16ab-1101.zdsk

Should return

eb-5.2.4-16ab-1101.zdsk: x86 boot sector

Then try:

fdformat /dev/fd0

Should return:

Double-sided, 80 tracks, 18 sec/track. Total capacity 1440 kB

Then:

sudo dd if=eb-5.2.4-16ab-1101.zdsk of=/dev/fd0

Should return:

34+1 records in
34+1 records out
17559 bytes transferred in 1.239903 seconds (14162 bytes/sec)

Lots of craziness can happen w/ bad floppies.