11-32.
11-33.
11-34.
11-35.
11-36.
The head actuator assembly in a floppy disk
drive has what purpose?
1. To retract the heads so the disk can be
removed from the drive only
2. To move the heads to the proper position on
the disk
3. To enable the write heads
4. To enable the read heads
The two read/write heads in a floppy disk drive
move independently of one another.
1. True
2. False
Which of the following is a description of the
construction of the read/write heads in a floppy
disk drive?
1.
2.
3.
4.
They are made of a hard ferrous material
with electromagnetic coils for reading and
writing
They are made of a soft ferrous material
with electromagnetic coils for reading and
writing
They are made of plastic with
electromagnetic coils for reading and
writing
They are made of a hard ferrous material
only and do not need any coils
The write head is centered between two erase
heads for which of the following reasons?
1. To erase the previous data before new data
is written
2. To cancel the write current when a read
operation is performed
3. To ensure that data being written does not
spill over to adjacent tracks
4. To erase the previous data after the new data
is written
The number of tracks per inch that can be
reliably written on a disk is called the
1. linear coercivity
2. longitudinal coercivity
3. linear density
4. longitudinal density
11-37.
11-38.
11-39.
11-40.
11-41.
11-42.
The number of bits per inch that can be reliably
written on a track is called the
1. linear coercivity
2. longitudinal coercivity
3. linear density
4. longitudinal density
The strength of the magnetic field required to
properly record data on a magnetic medium is
referred to by which of the following terms?
1. Coercivity
2. Oersteds
3. Density
4. Ferrous
Oersteds are used to make what type of
measurements?
1.
2.
3.
4.
Magnetic field strength
Permeability of a ferrous material
Magnetic density
Magnetic polarity
A 5.25-inch floppy disk that is labeled as DSDD
has a maximum data capacity of
1. 180 kilobytes
2. 360 kilobytes
3. 720 kilobytes
4. 1.2 megabytes
The track width of a 3.5-inch floppy disk is
1. 0.l15 mm
2. 0.16 mm
3. 0.33 mm
4. 0.45 mm
Reading a 5.25-inch, 360K disk in a 1.2M disk
drive will cause what problem, if any?
1. The disk drive will read the disk with
massive read errors
2. The disk drive will be unable to read the disk
at all
3. The 360K disk will not fit into a 1.2M disk
drive
4. No problem; the disk drive will read the disk
normally
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