Consumer Electronics

Multiple Choice Questions

1. All methods of recording and playback rely on a sequence of
   1. reversible processes
   2. irreversible processes
2. Tapes with thinner coatings are capable of the
   1. lowest information packing density
   2. highest information packing density
3. Metallic thin films
   1. can be controllably produced in much thinner layers
   2. cannot be controllably produced in much thinner layers
4. The size of the gap, particularly for replay
   1. must not be small
   2. must be small
5. The use of modern micro-gap heads has now made possible the use of tape speeds as low as
   1. 3¾ ips
   2. 1⁷/₈ ips
   3. 7½
6. It is usual for cassette recorders to have
   1. separate heads for recording and replay
   2. a single head for recording and replay
7. Erasure is carried out with a head with a much
   1. smaller ...