12-9. Which of the following actions will help prevent
damage to the disk pack?
1.
2.
3.
4.
Store the disk pack on its side
Store the disk pack in an area where large
magnetic fields exist
Never reassemble the disk pack canister if it
is empty
Never touch the disk pack’s recording
surfaces
12-10. The term “fixed hard disk system” refers to
which of the following devices?
1.
2.
3.
4.
A hard disk system that is not broken
A hard disk system in which the disk is in a
sealed case and inaccessible to the user
A hard disk system in which the hard disk is
contained in a removable cartridge
A hard disk system that cannot be used with a
microcomputer
12-11. The head disk assembly of a fixed disk system
usually contains all of the following parts except
which one?
1. The heads
2. The disk platters
3. The head actuator
4. The disk controller
12-12. What is the maximum number of platters that a
half-height, fixed disk system may contain?
1. Five
2. Six
3. Seven
4. Eight
12-13. In the manufacture of a fixed hard disk, which of
the following processes for applying the
magnetic material is similar to the process used
in creating semiconductors?
1. Sputtering
2. Platting
3. Electroplating
4. Coating
12-14.
12-15.
12-16.
12-17.
12-18.
Which of the following materials is most
commonly used as a base for fixed hard disk
platters?
1. Polyester film
2. Aluminum alloy
3. Iron alloy
4. Plastic
Having the thinnest magnetic media applied to the
disk platters has which of the following
advantages?
1.
2.
3.
4.
A smaller space on the disk is required to
reliably store data
The head can fly closer to the disk
A smaller magnetic field strength is required
to reliably store data
All of the above
In a magnetic disk system, reducing the flying
height of the heads has which of the following
advantages?
1.
2.
3.
4.
Requires a stronger current to accurately write
on the disk
Reduces the signal to noise ratio, increasing
the accuracy of the disk
Increases the signal to noise ratio, increasing
the accuracy of the disk
Increases the physical space on the disk
required to store data
The U-shaped groove in the bottom of a thin film
head is used for what function?
1.
2.
3.
4.
To regulate the air pressure and control the
flying height of the head
To direct the magnetic field from the head
onto the disk when writing
To channel the magnetic field from the disk to
the head when reading
To hold the erase head
The mechanical system that moves the heads
across the disk surface is known as the
1. head drive system
2. head arm
3. head actuator
4. disk drive motor
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