List three items of information normally included in the  general description section of a specification sheet for a  transistor.

1 Answer

Answer :

The kind of transistor, the transistor's common applications, and  mechanical data

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Description : In the NPN transistor, what section is made very thin compared with the other two sections?

Last Answer : The P or base section.

Description : The skew specification of your multi-tracked tape recorder reads " +/ - 0.20 microseconds between adjacent tracks on the same head stack at 120 ips." What does this mean?

Last Answer : One of the tracks on a magnetic head could lead or lag the track next to it by as much as 0.20 microseconds at 120 ips.

Description : A recorder’s harmonic-distortion specification reads 2% third harmonic of a 100-kHz signal at 60 ips. What does this mean?

Last Answer : The recorder has 2% third-harmonic distortion of a 100-kHz signal at 60 ips.

Description : The frequency-response specification of your tape recorder reads within +/ - 3 dB from 150 Hz to 150 kHz at 60 ips. What does this mean?

Last Answer : The recorder can record all frequencies between 150 Hz and 150 kHz at 60 ips without varying the output amplitude more than 3 dB.

Description : What are the three transistor configurations?

Last Answer : Common emitter (CE), common base (CB), and common collector (CC)

Description : What are the three basic configurations of transistor oscillators?

Last Answer : Common collector (CC), common emitter (CE), and common base (CB).

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Last Answer : Oscillator, mixer, and detector.

Description : Transactions with related parties are important to the auditors because they will be disclosed in the financial statements if material. Generally accepted accounting principles would not require disclosure of ... transactions, including peso amounts. d. The amounts due from and to related parties

Last Answer : Loans to officers during the year which had been repaid before the balance sheet date

Description : Normally, the FIRST step in troubleshooting a transistor circuit card is to _____________. A. carefully remove the transistors from the card B. give the circuit an initial test with a signal generator C. test for continuity with a low voltage DC supply D. visually inspect the card

Last Answer : Answer: D

Description : __________ is normally used for the manufacture of refrigerator components and transistor parts. (A) Polypropylene (B) Polystyrene (C) Polyester (D) Polyurethane

Last Answer : (B) Polystyrene

Description : Transistor parts and refrigerator components are normally made of (A) Polystyrene (B) Polyester (C) High density polythene (D) Polyurethane

Last Answer : (A) Polystyrene

Description : When creating a photo print to sell what should be included as far as text and description if any?

Last Answer : I’d do it like a cutline or caption in journalism.

Description : In the MIME header field, ____describes how the object within the body was encoded in order that it be included in the message using a mail-safe form. a. content-type b. content-transfer-encoding c. content-description d. content-id

Last Answer : b. content-transfer-encoding

Description : When magnetic tapes are ruined, what three factors are normally the cause?

Last Answer : Poor handling, improper storage, or shipping damage.

Description : In a sawtooth generator, why is the transistor turned on for a longer time than the discharge time of the RC network?

Last Answer : To allow the capacitor time to discharge.

Description : What are the factors that limit the frequency response of a transistor amplifier?

Last Answer : The capacitance and inductance of the circuit and the interelectrode capacitance of the transistor.

Description : When you are using an ohmmeter to test a transistor for leakage, what is indicated by a low, but not shorted, reverse resistance reading?

Last Answer : A leaking transistor

Description : When you are testing the gain of an audio-frequency transistor with an ohmmeter, what is indicated by a 10-to-1 resistance ratio?

Last Answer : Normal gain.

Description : What are two transistor tests that can be done with an ohmmeter?

Last Answer : Gain and junction resistance.

Description : How is the collector lead identified on an oval-shaped transistor?

Last Answer : By the wide space between the collector lead and the other two leads (emitter and base)

Description : What safety precaution must be taken before replacing a transistor?

Last Answer : The power must be removed from the circuit.

Description : Which transistor configuration has the highest input resistance?

Last Answer : Common collector.

Description : Which transistor configuration has a current gain of less than 1?

Last Answer : Common base.

Description : What method for checking transistors is cumbersome when more than one transistor is bad in a circuit?

Last Answer : The substitution method.

Description : What is the greatest danger to a transistor?

Last Answer : Heat.

Description : In the basic transistor amplifier discussed earlier, what is the relationship between the polarity of the input and output signals?

Last Answer : The signals are opposite in polarity or 180 degrees out of phase with each other.

Description : Name the two current loops in a transistor.

Last Answer : The base current loop and the collector current loop

Description : What is the relationship between the polarity of the voltage applied to the PNP transistor and that applied to the NPN transistor?

Last Answer : The polarity of voltage applied to the PNP transistor is opposite of that applied to the NPN

Description : What are the majority current carriers in a PNP transistor?

Last Answer : Holes.

Description : What percentage of current in an NPN transistor reaches the collector?

Last Answer : 98 percent.

Description : Which transistor configuration provides a phase reversal between the input and output signals?

Last Answer : Common emitter.

Description : To properly bias an NPN transistor, what polarity voltage is applied to the collector, and what is its relationship to the base voltage?

Last Answer : Positive, more positive.

Description : What is one of the most important parts of any transistor manufacturing process?

Last Answer : Quality control.

Description : What was the name of the very first transistor?

Last Answer : Point-contact.

Description : In which direction does the arrow point on an NPN transistor?

Last Answer : Outward.

Description : What electronic function made the transistor famous?

Last Answer : Amplification.

Description : The base of a transistor serves a purpose similar to what element of the FET

Last Answer : Gate.

Description : What is one of the primary advantages of the FET when compared to the bipolar transistor?

Last Answer : High input impedance.

Description : What two transistor amplifier configurations are combined in the single-transistor, two-input, single-output difference amplifier?

Last Answer : Common emitter (CE) and common base (CB)

Description : Why is a high-gain transistor used in the phase-shift oscillator?

Last Answer : Because of the losses encountered in the RC networks.

Description : As a transistor ages, what happens to the leakage current?

Last Answer : It tends to increase

Description : Which junction of the transistor in the common-emitter detector detects the modulation envelope?

Last Answer : Emitter-base junction

Description : What simple, one-transistor detector circuit uses the heterodyne principle?

Last Answer : Regenerative detector.

Description : When you are using an ohmmeter to test a transistor, what range settings should be avoided?

Last Answer : Any range setting that produces a current flow through the transistor that exceeds 1 milliamp (usually R x 1 range)

Description : What is the major advantage of a transistor over a tube?

Last Answer : Rugged design.

Description : What characteristic of a transistor is varied in a semiconductor-reactance modulator?

Last Answer : Collector-to-emitter capacitance.

Description : What are the four classes of operation of a transistor amplifier?

Last Answer : A, AB, B, C.

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Last Answer : . a. Cylinder number. b. Recording surface number.

Description : List specification of BJT.

Last Answer : * The bipolar junction transistor (BJT) has small signal current gain, α (hfb). * Maximum collector current Ic (max). * Maximum collector to emitter voltage, VCE (max). * Collector to emitter ... . * Collector to emitter cut off voltage, VCEO. * Base emitter saturation voltage, VBE (sat).