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?

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?
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1 Answer

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.
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Related questions

. After rewinding a tape onto its supply reel, you examine the tape pack and notice pile-ups of tape resembling the example in figure 2-2. What causes this condition?

Description : . After rewinding a tape onto its supply reel, you examine the tape pack and notice pile-ups of tape resembling the example in figure 2-2. What causes this condition?

Last Answer : The tape is stopped too quickly when winding or rewinding.

A tape pack has gaps in the tape winding as shown in figure 2-5. What causes this condition?

Description : A tape pack has gaps in the tape winding as shown in figure 2-5. What causes this condition?

Last Answer : Tape is loosely wound on reel.

A tape pack is buckled and deformed as shown in figure 2- 4. What are three possible causes for this condition?

Description : A tape pack is buckled and deformed as shown in figure 2- 4. What are three possible causes for this condition?

Last Answer : a. Reel has a distorted hub, b. tape wound over small particle deposited on hub, and c. tape wound on reel with tension increasing toward end of winding.

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?

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.

When the relative humidity is below 10%, what happens to magnetic tape and parts of a tape recorder that could cause environmental damage?

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.

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?

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

Environmental damage to magnetic tape can occur when the tape is stored in an area that exceeds what ideal temperature and humidity ranges?

Description : Environmental damage to magnetic tape can occur when the tape is stored in an area that exceeds what ideal temperature and humidity ranges?

Last Answer : Ideally, use and store tape at 60 to 80º F and at 40 to 60% relative humidity.

List four rules you should follow when storing magnetic tape to protect it from damage.

Description : List four rules you should follow when storing magnetic tape to protect it from damage.

Last Answer : a. Make sure the tape is wound properly on the reel hub, b. store tapes vertically, c. keep storage area at right temperature and humidity, d. store away from equipment that generates stray magnetic fields.

If magnetic tape is stored in areas with temperature and humidity extremes, what are three types of tape damage that may occur?

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.

Tape winding errors can cause a deformed tape pack. What are four common types of tape pack deformation?

Description : Tape winding errors can cause a deformed tape pack. What are four common types of tape pack deformation?

Last Answer : Cinching, pack slip, spoking, and windowing.

How do the tape guides on a tape reeling system protect the tape from damage during operation?

Description : How do the tape guides on a tape reeling system protect the tape from damage during operation?

Last Answer : They keep the tape straight with respect to both the supply and take-up reels and the magnetic heads.

The head driver circuit of a tape recorder’s FM record electronics (figure 5-4) performs what function?

Description : The head driver circuit of a tape recorder’s FM record electronics (figure 5-4) performs what function?

Last Answer : It amplifies the frequency-modulated output from the record oscillator and sends it to the record head.

The equalization and phase correction circuit in a tape recorder’s direct reproduce electronics (figure 5-2) performs what function?

Description : The equalization and phase correction circuit in a tape recorder’s direct reproduce electronics (figure 5-2) performs what function?

Last Answer : It generates an equalization signal which corrects any frequency response problems in the input signal from the pre-amplifier circuit.

The head driver circuit in a tape recorder’s direct record electronics component (figure 5-1) performs what function?

Description : The head driver circuit in a tape recorder’s direct record electronics component (figure 5-1) performs what function?

Last Answer : It takes the signal from the summing network, amplifies it, and sends it to the record head for recording.

What equipment should you use to de-magnetize a magnetic tape transport?

Description : What equipment should you use to de-magnetize a magnetic tape transport?

Last Answer : A hand-held degausser.

Sometimes it's necessary, but why should you avoid using cotton swabs when cleaning a magnetic tape transport?

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.

. How do tape transports with differential velocity capstans maintain a constant tape tension in the area around the magnetic heads?

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.

What are the four basic parts of a magnetic tape recorder's tape transport system?

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.

Why is it important to minimize TBE jitter in magnetic tape recordings where precise timing relationships exist between two or more signals?

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.

What number harmonic is the primary harmonic distortion in magnetic tape recorders?

Description : What number harmonic is the primary harmonic distortion in magnetic tape recorders?

Last Answer : Third-order harmonic.

List four factors that can degrade the frequency response of magnetic tape recorders.

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.

What two types of record and reproduce electronics are used by magnetic tape recorders?

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).

What two preventive maintenance actions must you do regularly to increase magnetic head life and to ensure good tape recording and playback?

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.

Magnetic tape recorders can have up to three different heads installed. What are the three functions performed by a recorder's heads?

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.

What is the correct way to hold a magnetic tape reel?

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.

What method for erasing magnetic tape is much more effective and reliable than using a recorder’s erase head?

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

What are two disadvantages of using a recorder’s erase head to erase data recorded on a magnetic tape?

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.

What are four types of tape errors that can degrade a magnetic recording system’s performance?

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.

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?

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.

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?

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.

Why is plastic magnetic tape used more than metal tape?

Description : Why is plastic magnetic tape used more than metal tape?

Last Answer : Plastic tape is used more than metal because it’s more flexible, resists mildew and fungus, and is very stable at high temperatures and humidity.

Magnetic tape is made of what three basic materials?

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.

What are the major differences between magnetic tape units?

Description : What are the major differences between magnetic tape units?

Last Answer : The speed at which the tape is moved past the read/write head and the density of the recorded information.

What are the major differences between magnetic tape units?

Description : What are the major differences between magnetic tape units?

Last Answer : The speed at which the tape is moved past the read/write head and the density of the recorded information.

What is the purpose of any magnetic tape unit?

Description : What is the purpose of any magnetic tape unit?

Last Answer : To write data on or read data from a magnetic tape.

Digital magnetic tape recorders used to store and retrieve digital data fall into what three categories?

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

Which digital data tape encoding method presets the magnetic tape to all zeros and then records digital ones onto the tape?

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.

Which of the eight methods for encoding digital data onto magnetic tape is most widely used because it’s accurate, simple, and reliable?

Description : Which of the eight methods for encoding digital data onto magnetic tape is most widely used because it’s accurate, simple, and reliable?

Last Answer : Non-return-to-zero (NRZ) encoding.

What three formats are used for 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.

In digital magnetic tape recording, the series of recorded digital pulses can represent what three types of data?

Description : In digital magnetic tape recording, the series of recorded digital pulses can represent what three types of data?

Last Answer : a. Data used by digital computers. b. Pulsed squarewave signals. c. Digitized analog waveforms.

Punched cards, paper tape, and magnetic tape use what storage access method?

Description : Punched cards, paper tape, and magnetic tape use what storage access method?

Last Answer : Sequential-access.

The figure shows two views of an object. What is the least volume of a rectangular box required to pack six such objects?

Description : The figure shows two views of an object. What is the least volume of a rectangular box required to pack six such objects?

Last Answer : 1690

How should a tape recorder with good phase response reproduce a complex waveform, such as a square wave?

Description : How should a tape recorder with good phase response reproduce a complex waveform, such as a square wave?

Last Answer : With no distortion

What causes flutter in a tape recorder’s output?

Description : What causes flutter in a tape recorder’s output?

Last Answer : Non-uniform tape motion caused by variations in tape speed.

What are four main causes of tape failure?

Description : What are four main causes of tape failure?

Last Answer : Normal wear, accidental damage, environmental damage, and winding errors.

What type of tape error causes noise to appear on the tape when no signal should appear? What causes this type of tape error?

Description : What type of tape error causes noise to appear on the tape when no signal should appear? What causes this type of tape error?

Last Answer : Noise error is usually caused by a cut or a scratch on the magnetic tape.

As you're taking pop from a 12 pack in the fridge, you notice something brown rolling in the carton. No big deal. As you're removing the last can, the brown thing rolls forward and appears to be a petrified insect cocoon of some sort. What would you do?

Description : As you're taking pop from a 12 pack in the fridge, you notice something brown rolling in the carton. No big deal. As you're removing the last can, the brown thing rolls forward and appears to be a petrified insect cocoon of some sort. What would you do?

Last Answer : answer:Throw it away. I wouldn't give it a second thought. After all, the stuff I drank was in cans and clearly not contaminated. And this was the last can. I might think to myself gee, they need better ... at Dr. Pepper , but that's about all. This would me a major so what' moment for me.

List two causes of damage to ESD-sensitive electronic components

Description : List two causes of damage to ESD-sensitive electronic components

Last Answer : Esd, improper stowage, and improper handling.

In a circuit such as that shown in figure 3-16, if R1 has a value of 50 ohms and R2 has a value of 250 ohms and the input signal has a value of +10 millivolts, what is the value of the output signal?

Description : In a circuit such as that shown in figure 3-16, if R1 has a value of 50 ohms and R2 has a value of 250 ohms and the input signal has a value of +10 millivolts, what is the value of the output signal?

Last Answer : 60 millivolts.

In a circuit such as that shown in figure 3-15, if R1 has a value of 100 ohms and R2 has a value of 1 kilohm and the input signal is at a value of + 5 millivolts, what is the value of the output signal?

Description : In a circuit such as that shown in figure 3-15, if R1 has a value of 100 ohms and R2 has a value of 1 kilohm and the input signal is at a value of + 5 millivolts, what is the value of the output signal?

Last Answer : 50 millivolts.