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Assignment 11-Cont. - 14100_474
Assignment 11-Cont. - 14100_476

Fire Controlman Volume 03-Digital Data Systems
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11-52. The media sensor detects a hole for which of the following disks? 1.  5.25-inch,  360K  disks 2.  5.25-inch,  1.2M  disks 3. 3.5-inch, 720K disks 4.  3.5-inch,  1.44M  disks 11-53. It is impossible to recover data on a disk that has been damaged. 1.   True 2.   False 11-54. Large magnetic disk memory sets are generally used with which of the following computers? 1. Mainframe computers 2.  Minicomputers 3.  Personal  computers  only 4. Microcomputers 11-55. What is the diameter of most magnetic disk packs? 1.  10  inches 2.  12  inches 3.  14  inches 4.  16  inches 11-56. The top and bottom platters of most disk packs are used for which of the following functions? 1. To store data 2.  To  provide  position  data 3. Both 1 and 2 above 4. To provide protection to the pack 11-57. The servo surface of a disk pack is used for which of the following functions? 1. To control the movement of the read/write heads 2. To maintain alignment of the read/write heads over the proper track 3. Both 1 and 2 above 4. To provide additional data storage area 11-58. When the summing of dipole bits on the disk servo surface is equal to zero volts, which of the following conditions exists? 1. The heads are on an odd numbered track only 2. The heads are on an even numbered track only 3. The heads are between tracks 4. The heads are centered on a track 11-59. On a typical disk memory set’s operator panel, which of the following conditions is NOT indicated  by  the  READY  indicator? 1.  The  disk  drive  address 2. The disk is up to operating speed 3. The heads are properly loaded 4.  No-fault  conditions  are  present 11-60. On a disk memory set’s status/maintenance panel, a fault code of 5 indicates what fault condition? 1. Voltage fault 2.  Seek  error 3.  Multiple  heads  selected  fault 4.  No  heads  selected  fault 11-61.  The  FORMAT  WRITE  PROTECT  switch  on  a disk memory unit’s status panel protects the disk from  being  inadvertently  formatted  by  which  of the following format commands? 1. Commands from the computer only 2. Commands from the status/maintenance panel  only 3. Commands from the computer and the status/maintenance  panel 11-62. The functions performed by the disk memory set’s controller microprocessor are governed by which of the following methods? 1. The firmware stored in a ROM 2. The software in the CDS computer 3. The firmware stored in the RAM 4. The software stored in the RAM 79






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