What component in the telephone set has the primary function of interfacing the handset
to the local loop?
A. Varistor
B. Induction coil
C. Resistor
D. Capacitor

1 Answer

Answer :

B. Induction coil

Related questions

Description : What component in the telephone set has the primary function of interfacing the handset to the local loop? A. Varistor B. Induction coil C. Resistor D. Capacitor

Last Answer : B. Induction coil

Description : What kind of receiver is used in conventional telephone handset? A. Capacitor B. Electromagnetic C. Carbon D. Ceramic

Last Answer : B. Electromagnetic

Description : What kind of receiver is used in converntional telephone handset? A. Capacitor B. Carbon C. Electromagnetic D. Ceramic

Last Answer : C. Electromagnetic

Description : The local loop of the telephone system is understood to be A. a single piece of wire connecting the subscriber's telephone set to another telephone set in an adjacent room B. a two-wire or four- ... a facsimile machine to a computer D. a group of wires connecting a telephone set to a modem

Last Answer : B. a two-wire or four-wire communication circuit between the customer’s premise and central office

Description : The local telephone company sells me a landline connection only if I purchase a handset from them as well. Which of the following rights does this practice violate under the Consumer Protection Act 1986? (1) Right to represent (2) Right to information (3) Right to choose (4) Right to seek redressa

Last Answer : (3) Right to choose

Description : Component 'C' in section 'I' shown in the illustration represent ____________. EL-0093 A. a selectable holding coil arrangement B. a 'fuse blown' indicator circuit C. 'reset' and 'trouble' lamps D. a handset with switch and voice elements

Last Answer : Answer: D

Description : To electrically decrease the length of an antenna. A. add an inductor in series B. add an inductor in parallel C. add a resistor in series D. add a capacitor in series

Last Answer : D. add a capacitor in series

Description : Increasing the electrical length of an antenna means A. add an inductor in parallel B. add a capacitor in series C. add an inductor series D. add a resistor is series

Last Answer : C. add an inductor series

Description : How is it possible to lower the resonant frequency of Hertz dipole antenna? A. By reducing the frequency at the transmitter B. By connecting a capacitor in series with the antenna C. By the connecting a resistor in series with the antenna D. By connecting an inductor in series with the antenna

Last Answer : D. By connecting an inductor in series with the antenna

Description : One of the following is a possible cause for a slow drift of frequency in a self-exited transmitter oscillator circuits resulting to a poor frequency stability. A. Loose shielding B. ... capacitor in the oscillator C. Poor soldered connections D. Faulty capacitor, resistor, tubes or resistors

Last Answer : B. Heating of capacitor in the oscillator

Description : The transmit and receive elements of a sound-powered telephone handset are _____________. A. identical and can be used for either function B. of similar construction but different enough to be used only for ... only for its own function D. constructed so that each can fit only in its own recess

Last Answer : Answer: A

Description : To lengthen an antenna electrically, add a A. resistor B. battery C. condult D. coil

Last Answer : D. coil

Description : One of the following is a possible cause of an abrupt frequency variation in a self exited transmitter oscillator circuits resulting to a poor frequency stability to hold a constant frequency ... capacitor in the oscillator D. Loose connections in the oscillator, amplifier, or antenna circuits.

Last Answer : D. Loose connections in the oscillator, amplifier, or antenna circuits.

Description : Indicate the false statement A. The noise generated in a resistance or the resistive component of any impedance is random. B. Random noise power is proportional to the bandwidth over which is measured ... exist D. All formula referring to random noise are applicable only to the value of such noise.

Last Answer : C. A random voltage across the resistor does not exist

Description : F1A weighting refers to ___________. A. -90 dBm B. dBrnc0 C. dBrnc D. F1A handset

Last Answer : C. dBrnc

Description : What does the noise weighting curve shows? A. Noise signals measured with a 144 handset B. Power levels of noise found in carrier systems C. The interfering effect of other frequencies in a voice ... a reference frequency of one kilohertz D. Interfering effects of signals compared with a 3-kHz tone

Last Answer : C. The interfering effect of other frequencies in a voice channel compared with a reference frequency of one kilohertz

Description : If you have caller id with your telephone service will this phone allow the user to see the caller id of the incoming call on the handset or on the charging station?

Last Answer : This phone system only allows users to see the caller id information from the phone itself and no caller id info is displayed on the charging station.

Description : The pushbutton on the handset of a ship's sound-powered telephone must be depressed to ______________. A. talk then released to listen B. listen then released to talk C. both talk and listen D. ring the station being called

Last Answer : Answer: C

Description : Refers to the first generation of local loop system in telecommunication technology. A. GSM B. DECT C. Analogue cellular D. TACS

Last Answer : C. Analogue cellular

Description : When a certain length of wire is turned into one circular loop, the magnetic induction at the centre of coil due to some current flowing is `B_(1)` If

Last Answer : When a certain length of wire is turned into one circular loop, the magnetic induction at the centre of coil due to ... 1)` C. `3B_(1)` D. `27B_(1)`

Description : Which cable connects the subscriber telephone to the nearest end office in the local loop.  a. Coaxial b. Fiber-optic c. Twisted-pair d. Both (b) and (c)

Last Answer : Which cable connects the subscriber telephone to the nearest end office in the local loop.  a. Coaxial b. Fiber-optic c. Twisted-pair d. Both (b) and (c)

Description : A telephone cable has following primary constants per loop kilometer ,R=30Ω, L=20mH,C=0.06µF,G=0.If the applied signal has an angular frequency of 5000 rad/sec.., Determine (i) Characteristics impedence (ii) Attenuation constant

Last Answer : A telephone cable has following primary constants per loop kilometer ,R=30Ω, L=20mH,C=0.06µF,G=0.If the applied signal has an angular frequency of 5000 rad/sec.., Determine (i) Characteristics impedence (ii) Attenuation constant

Description : In general, polyphase induction motors can be started on full line voltage by means of ______________. A. compensator starters B. autotransformer starters C. across-the-line starters D. primary-resistor starters

Last Answer : Answer: C

Description : Low horsepower, polyphase, induction motors can be started with full voltage by means of _____________. A. compensator starters B. autotransformer starters C. across-the-line starters D. primary-resistor starters

Last Answer : Answer: C

Description : Which of the following is not referred to as data terminal equipment? A. Telephone set B. Printers C. Modem D. Computer

Last Answer : C. Modem

Description : Draw interfacing of 16 × 2 LCD with 8051 and state the function of EN and RS of LCD

Last Answer : Diagram: RS: RS is the register select pin. We need to set it to 1, if we are sending some data to be displayed on LCD. And we will set it to 0 if we are sending some command instructions ... the LCD to latch in the data present at the data pins. This pulse must be a minimum of 450ns wide.

Description : What is the function of capacitor in single phase induction motor?

Last Answer : To make phase difference between starting and running winding, to improve PF and to get more torque

Description : The square of the thermal noise voltage generated by a resistor is proportional to A. its resistance B. its temperature C. the bandwidth over which it is measured D. All of the above

Last Answer : D. All of the above

Description : Indicate the false statement. Noise figure is defined as A. the ratio of the S/N power supplied at the input terminal of a receiver or amplifier to the S/N power supplied to the output or ... under test, both working at the same temperature over the same bandwidth and fed from the same source

Last Answer : C. an unwanted form of energy tending to interfere with the proper and easy reception and reproduction of wanted signals

Description : The noise output of a resistor is amplified by a noiseless amplifier having a gain of 60 and a bandwidth of 20 kHz. A meter connected at the output of the amplifier reads 1mV RMS. If the bandwidth of the amplifier is reduced to ... does the meter read now? A. 0.5 mV B. 0.5 µV C. 5.0 mV D. 5.0 µV

Last Answer : A. 0.5 mV

Description : The first stage of a two-stage amplifier has a voltage gain of 10, a 600 Ω input resistor, a 1600Ω equivalent noise resistance and 27kΩ output resistor. For the second stage, these values are 25, 81kΩ, 19kΩ, and 1MΩ, ... this two stage amplifier. A. 2,518 kΩ B. 2,518 Ω C. 251.8 Ω D. 12,518 Ω

Last Answer : B. 2,518 Ω

Description : An amplifier operating over the frequency range of 455 to 460 kHz has a 200 kΩ input resistor. What is the RMS noise voltage at the input to this amplifier if the ambient temperature is 17˚C ? A. 40 µV B. 4.0 µV C. 400 µV

Last Answer : B. 4.0 µV

Description : The value of the resistor creating thermal noise is doubled. The noise power generated is therefore. A. halved B. quadrupled C. doubled D. unchanged

Last Answer : D. unchanged

Description : At 17˚ C, the noise voltage generated by 5kΩ resistor, operating over a bandwidth of 20KHz is A. 1.3 nV B. 1.3 µV C. 1.3 pV D. 1.3 mV

Last Answer : B. 1.3 µV

Description : What would happen if the base resistor has zero resistance?

Last Answer : If the base resistance is zero, then the base current is very high. Since, we know that the base current is directly proportional to the collector current with the multiplying factor of current ... high. In this time, the transistor operates in saturation region and finally it is being destroyed.

Description : What would happen if the base resistor has zero resistance?

Last Answer : If the base resistance is zero, then the base current is very high. Since, we know that the base current is directly proportional to the collector current with the multiplying factor of current ... high. In this time, the transistor operates in saturation region and finally it is being destroyed.

Description : The 'Choke' used with a tube light is basically – (1) an inductor (2) a capacitor (3) a transformer (4) a resistor

Last Answer : (1) an inductor Explanation: In electronics, a choke is an inductor used to block higher-frequency alternating current (AC) in an electrical circuit, while passing lower-frequency or direct ... created by suddenly interrupting the current in choke, which is connected in series with the tubelight.

Description : What is represented by the electric symbol figure 'D' in the illustration? EL-0005 A. Fuse B. Plug-in contact resistor C. Variable capacitor D. Electrolytic capacitor

Last Answer : Answer: A

Description : The most inefficient method of voltage reduction, from the standpoint of power loss, even when placed in series with the load, is the use of a/an ____________. A. capacitor B. inductor C. resistor D. transistor

Last Answer : Answer: C

Description : When troubleshooting a console circuit card suspected of being faulty, first check operating voltages, clean the card and then _________________. A. make sure wired connections and push-on connectors ... circuit traces with an ohmmeter D. measure the gain of each transistor or integrated circuit

Last Answer : Answer: A

Description : The most inefficient method of voltage reduction from the stand point of power loss, is a/an _____________. A. capacitor in series with the load B. inductor in series with the load C. capacitor and inductor in series with the load D. resistor in series with the load

Last Answer : Answer: D

Description : Device used to store energy in electrical circuits is A. resistor B. inductor C. capacitor D. diode

Last Answer : capacitor

Description : insulator which is placed between 2 plates of capacitor isA. electric B. dielectric C. inductor D. resistor

Last Answer : dielectric

Description : What is the time constant of the resistor and capacitor in a peak detector for pam?

Last Answer : At least 10 times the interpulse period.

Description : A circuit is to be designed in which a capacitor must charge to 40 percent of the maximum charging voltage in 200 microseconds. The resistor to be used has a resistance of 40,000 ohms. What size capacitor must be used?

Last Answer : 0.1 microfarads 40% from the graph = 0.5

Description : What is the RC time constant of a series RC circuit that contains a 12-megohm resistor and a 12-microfarad capacitor?

Last Answer : 144 seconds (t=R x C)

Description : What is the voltage drop across the resistor in an RC charging circuit when the charge on the capacitor is equal to the battery voltage?

Last Answer : Zero.

Description : At what instant does the greatest voltage appear across the resistor in a series RC circuit when the capacitor is charging?

Last Answer : At the instant of the initiation of the action.

Description : A combination of N-type and P-type material is called a) Diode b) Transistor c) Resistor d) Capacitor

Last Answer : a) Diode