11-27. The drive motor in a 5.25-inch, 1.2M disk
drive spins at which of the following speeds?
1. 200 rpm
2. 260 rpm
3. 300 rpm
4. 360 rpm
11-28. The drive motor on most half-height floppy
disk drives is which of the following types of
motors?
1. Gear box drive
2. Direct drive
3. Servo drive
4. Belt-drive
11-29. To adjust the speed of some older
fill-height, belt-driven floppy disk drives,
which of the following actions should be
performed?
1. Replace the drive belt only
2. Observe the data on the floppy disk with
an oscilloscope and adjust for maximum
signal
3. Observe the drive speed frequency with
an oscilloscope and adjust for proper
speed
4. Observe the strobo-disk under a
fluorescent light and adjust the speed
until the strobo-disk spokes appear to be
stationary
11-30. Which of the following is NOT a function of
the drive electronics circuit board?
1. To control the electromechanical parts of
the disk drive
2. To control the operation of the read/write
heads
3. To interface the disk drive to the
computer
4. To interface the disk drive to the disk
controller
92
11-31. A 4-pin, in-line connector on the drive
electronics circuit board of a floppy disk
drive serves which of the following
functions?
1. To provide power to the drive
2. To provide control signals to the drive
3. To transfer serial data from the heads to
the drive controller
4. To transfer serial data from the disk
controller to the write head
11-32. 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
11-33. The two read/write heads in a floppy disk
drive move independently of one another.
1. True
2. False
11-34. Which of the following is a description of the
construction of the read/write heads in a
floppy disk drive?
1. They are made of a hard ferrous material
with electromagnetic coils for reading
and writing
2. They are made of a soft ferrous material
with electromagnetic coils for reading
and writing
3. They are made of plastic with
electromagnetic coils for reading and
writing
4. They are made of a hard ferrous material
only and do not need any coils
