Description : What format of digital tape recording takes a serial input stream of data pulses, breaks them up, and records them on more than one data track?
Last Answer : Serial-parallel digital magnetic tape recording.
Description : What three formats are used for digital magnetic tape recording?
Last Answer : 1) Serial, (2) parallel, and (3) serial-parallel.
Description : Which method of digital data encoding does NOT return the tape to neutral between pulses but, instead, saturates the tape positively or negatively as the incoming data changes between zero and one?
Last Answer : Non-return-to-zero (NRZ) encoding.
Description : Which digital data encoding method records a digital one as a positive pulse and a digital (zero) as a negative pulse and returns the tape to neutral between pulses?
Last Answer : Return-to-zero (RZ) encoding.
Description : What are two disadvantages of using a recorder’s erase head to erase data recorded on a magnetic tape?
Last Answer : Using an erase head is slow, and it may not completely erase the tape.
Description : Which digital data encoding method helps overcome a tape recorder’s low-frequency response problems by recording two logic levels for each incoming data bit?
Last Answer : Bi-phase level encoding.
Description : What format of digital tape recording is normally used to record instrumentation or telemetry data?
Last Answer : Serial digital magnetic tape recording.
Description : What format of digital tape recording is normally used to store computer data?
Last Answer : Parallel digital magnetic tape recording.
Description : What are four types of tape errors that can degrade a magnetic recording system’s performance?
Last Answer : Signal dropout, noise, skew, and level. Dropout is the most common.
Description : Digital magnetic tape recorders used to store and retrieve digital data fall into what three categories?
Last Answer : a. Computer-compatible digital tape recorders. b. Telemetry digital tape recorders. c. Instrumentation digital tape recorders
Description : What two preventive maintenance actions must you do regularly to increase magnetic head life and to ensure good tape recording and playback?
Last Answer : a. Keep the heads clean. b. Keep the heads demagnetized.
Description : Which digital data tape encoding method presets the magnetic tape to all zeros and then records digital ones onto the tape?
Last Answer : Return-to-bias (RB) encoding.
Description : Which of the eight methods for encoding digital data onto magnetic tape is most widely used because it’s accurate, simple, and reliable?
Description : What method for encoding digital data enables you to store more data in less space by limiting the distance between pulses on a hard disk?
Last Answer : Run length-limited (RLL) encoding.
Description : The data recording format in most of the modern magnetic tape is A) 7-bit ASCII B) 7-bit EBCDIC C) 8-bit ASCII D) 8-bit EBCDIC
Last Answer : Answer : D
Description : The data recording format in most of the modern magnetic tape is a. 7-bit ASCII b. 7-bit EBCDIC c. 8-bit ASCII d. 8-bit EBCDIC
Last Answer : 8-bit EBCDIC
Last Answer : d. 8-bit EBCDIC
Description : If magnetic tape is stored in areas with temperature and humidity extremes, what are three types of tape damage that may occur?
Last Answer : Oxide shedding, layer-to-layer sticking, and tape deformation.
Description : What is the normal organization of data recorded on magnetic storage media?
Last Answer : By bits, characters (bytes), fields, records, and files.
Description : Modern handheld digital tachometers operate by counting light pulses returned to the unit by ______________. A. the tach generator B. either the coupling or shaft C. a small bulb attached to the shaft D. a piece of reflective tape
Last Answer : Answer: D
Description : What type of magnetic tape is used to record computer programs and data, and what are the additional thickness and quality standards for this type of tape?
Last Answer : digital magnetic tape is for computer programs and data. Its base material is about 50% thicker. The tape’s surface must not have blemishes or coating flaws because losing even one digital data bit could ruin the recorded computer program or data.
Description : What are the three functions of the magnetic heads on a magnetic recording device?
Last Answer : a. Record the signal onto the recording medium. b. Reproduce the signal from the recording medium. c. Erase the signal from the recording medium.
Description : What three things are required to perform magnetic recording
Last Answer : a. An input signal. b. A recording medium. c. A magnetic head.
Description : An output device that uses words or messages recorded on a magnetic medium to produce audio response is A) Magnetic tape B) Voice response unit C) Voice recognition unit D) Voice band
Last Answer : Answer : B
Description : An output device that uses words or messages recorded on a magnetic medium to produce audio response is b. Magnetic tape c. Voice response unit d. Voice recognition unit e. Voice band
Last Answer : Voice response unit
Last Answer : d. Voice recognition unit
Last Answer : b. Magnetic tape
Description : What two types of record and reproduce electronics are used by magnetic tape recorders?
Last Answer : . a. Direct record (AM). b. Frequency modulation (FM).
Description : Your activity stores its magnetic tape in an area where the temperature is 100º F. What two types of environmental damage could occur that would make these tapes unusable?
Last Answer : Head-to-tape sticking and layer-to-layer adhesion
Description : Which of the two types of magnetic tape is used to record audio and instrumentation type signals in the VLF to 2.5MHz frequency range?
Last Answer : Analog magnetic tape.
Last Answer : Magnetic recording tape is most commonly made from ferric oxide.
Description : ______ is most commonly used for making magnetic recording tape.
Last Answer : Ferric oxide is most commonly used for making magnetic recording tape.
Description : Is a digital recording generated from an old vinyl record or tape invisible to copyright flags?
Last Answer : Quick NO not invisible. The copyright detection software works off the tunes themselves and tries to do pattern matching on the sound. So it may be an old LP or an old reel-to-reel recording that is your source, but if they can recognize the sound pattern, they will ding you.
Description : Magnetic tape recorders can have up to three different heads installed. What are the three functions performed by a recorder's heads?
Last Answer : Record, reproduce, and erase.
Description : Magnetic tape is made of what three basic materials?
Last Answer : a. Base material. b. Coating of magnetic oxide particles. c. Glue that bonds the particles to the base.
Description : What are the three most popular methods for encoding digital data onto magnetic disks?
Last Answer : a. Frequency modulation (FM). b. Modified frequency modulation (MFM). c. Run length limited (RLL).
Description : What part of a floppy disk drive transport uses a dc stepper motor to position the magnetic heads over the recording surface of a floppy disk?
Last Answer : Actuator arm assembly.
Description : What is the meaning of the term recording medium as it pertains to magnetic recording?
Last Answer : A recording medium is any material that has the ability to become magnetized, in varying amounts, in small sections along its entire length.
Description : What equipment should you use to de-magnetize a magnetic tape transport?
Last Answer : A hand-held degausser.
Description : Sometimes it's necessary, but why should you avoid using cotton swabs when cleaning a magnetic tape transport?
Last Answer : Cotton swabs are not lint free.
Description : . How do tape transports with differential velocity capstans maintain a constant tape tension in the area around the magnetic heads?
Last Answer : The supply capstan is slightly larger than the take-up capstan. This causes the take-up capstan to pull the tape slightly faster than the supply capstan feeds the tape.
Description : What are the four basic parts of a magnetic tape recorder's tape transport system?
Last Answer : a. Tape reeling system. b. Tape speed control system. c. Electronic subsystem. d. Basic enclosure.
Description : Why is it important to minimize TBE jitter in magnetic tape recordings where precise timing relationships exist between two or more signals?
Last Answer : The jitter could cause noise and a loss of accuracy.
Description : What number harmonic is the primary harmonic distortion in magnetic tape recorders?
Last Answer : Third-order harmonic.
Description : List four factors that can degrade the frequency response of magnetic tape recorders.
Last Answer : a. A too-high or too-low bias signal level setting for the record head. b. An improper reproduce head gap. c. An improper tape transport speed. d. Poor tape-to-head contact.
Description : What is the correct way to hold a magnetic tape reel?
Last Answer : Always hold reel by the hub, never by the flanges. Never touch the working tape surface.
Description : What method for erasing magnetic tape is much more effective and reliable than using a recorder’s erase head?
Last Answer : Using a magnetic tape degausser
Description : You notice steps in the tape pack such as those in figure 2-3. What causes this and how does it damage the magnetic tape?
Last Answer : Pack slip. It's caused by loosely wound tape on a reel that is exposed to excessive vibration or heat. The vibration or heat causes the tape to shift, causing steps in the tape pack. The uneven tape will then rub against the reel's sides and the recorder's tape guides.
Description : When the relative humidity is below 10%, what happens to magnetic tape and parts of a tape recorder that could cause environmental damage?
Last Answer : Dirt build-up caused by static electricity.
Description : After using a tape that was stored in an area where temperatures exceeded 130º F you notice pieces of oxide sticking to the recorder's tape-transport mechanism, to its magnetic heads, and onto the tape. What is the probable cause of these symptoms?
Last Answer : Oxide shedding. At temperatures above 130º F, oxide coating becomes soft and sheds.