Attenuation and noise can impair a signal. True False

Attenuation and noise can impair a signal.
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False
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True
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Related questions

_________can impair a signal. A) Attenuation B) Distortion C) Noise D) All of theabove

Description : _________can impair a signal. A) Attenuation B) Distortion C) Noise D) All of theabove

Last Answer : All of theabove

________ is a typeof transmission impairment in which the signal loses strength due to the different propagation speeds of each frequency that makes up the signal. A) Attenuation B) Distortion C) Noise D) Decibel

Description : ________ is a typeof transmission impairment in which the signal loses strength due to the different propagation speeds of each frequency that makes up the signal. A) Attenuation B) Distortion C) Noise D) Decibel

Last Answer : Distortion

________ is a typeof transmission impairment in which the signal loses strength due to theresistance of the transmission medium. A) Attenuation B) Distortion C) Noise D) Decibel

Description : ________ is a typeof transmission impairment in which the signal loses strength due to theresistance of the transmission medium. A) Attenuation B) Distortion C) Noise D) Decibel

Last Answer : Attenuation

_______ is a typeof transmission impairment in which an outside sourcesuch as crosstalk corrupts asignal. A) Attenuation B) Distortion C) Noise D) Decibel

Description : _______ is a typeof transmission impairment in which an outside sourcesuch as crosstalk corrupts asignal. A) Attenuation B) Distortion C) Noise D) Decibel

Last Answer : Noise

The loss in signal power as light travels down the fiber is called a. attenuation b. progragation c. scattering d. interruption

Description : The loss in signal power as light travels down the fiber is called a. attenuation b. progragation c. scattering d. interruption

Last Answer : attenuation

The loss in signal power as light travels down the fiber is called ............. A) Attenuation B) Propagation C) Scattering D) Interruption

Description : The loss in signal power as light travels down the fiber is called ............. A) Attenuation B) Propagation C) Scattering D) Interruption

Last Answer : A) Attenuation

The random and unpredictable electric signal from natural causes, both internal and external to the system is know as ________. A. Distortion B. Noise C. Attenuation D. Interference

Description : The random and unpredictable electric signal from natural causes, both internal and external to the system is know as ________. A. Distortion B. Noise C. Attenuation D. Interference

Last Answer : B. Noise

..................... is a type of transmission impairment in which the signal loses strength due to the resistance of the transmission medium. (A) Attenuation (B) Distortion (C) Noise (D) Decibel

Description : ..................... is a type of transmission impairment in which the signal loses strength due to the resistance of the transmission medium. (A) Attenuation (B) Distortion (C) Noise (D) Decibel

Last Answer : (A) Attenuation

Which of the following refers to theterms "residual error rate"? A. the number of biterrors per twenty four hours of continuous operation onanasynchronous line B. The probability that one or moreerrors will be undetected whenan error detection scheme is used C. the probability thatone or more errors will bedetected when anerror detection mechanism is used D. signal tonoise ratio dividedby the ratio of energy perbit to noise per hertz E. None of the above

Description : Which of the following refers to theterms "residual error rate"? A. the number of biterrors per twenty four hours of continuous operation onanasynchronous line B. The probability that one or moreerrors ... tonoise ratio dividedby the ratio of energy perbit to noise per hertz E. None of the above

Last Answer : The probability that one or moreerrors will be undetected whenan error detection scheme is used

A noise where foreign signal enters the path of the transmitted signal is called …… A. Impulse B. Inter modulation C. cross talk D. both b and c

Description : A noise where foreign signal enters the path of the transmitted signal is called …… A. Impulse B. Inter modulation C. cross talk D. both b and c

Last Answer : C. cross talk

Block coding can help in _______at the receiver. A) Synchronization B) Error detection C) Attenuation D) (a) and (b)

Description : Block coding can help in _______at the receiver. A) Synchronization B) Error detection C) Attenuation D) (a) and (b)

Last Answer : (a) and (b)

Computers cannot communicate with each other directly over telephone lines because they usedigitalpulses whereas telephone lines useanalog sound frequencies. What is the name of the device which permits digital to analog conversion at the start of a long distance transmission? A. Interface B. Modem C. Attenuation D. Teleprocessor E. None of the above

Description : Computers cannot communicate with each other directly over telephone lines because they usedigitalpulses whereas telephone lines useanalog sound frequencies. What is the name of the device which permits digital to analog ... A. Interface B. Modem C. Attenuation D. Teleprocessor E. None of the above

Last Answer : Modem

Which of the following summation operations is performed onthe bits to checkanerror-detecting code? A. Codec B. Coder-decoder C. Checksum D. Attenuation

Description : Which of the following summation operations is performed onthe bits to checkanerror-detecting code? A. Codec B. Coder-decoder C. Checksum D. Attenuation

Last Answer : Checksum

A special request originated from some device to the CPU to acquire some of its time is called ___________ a) Disturbance b) Attenuation c) Interrupt d) Noise

Description : A special request originated from some device to the CPU to acquire some of its time is called ___________ a) Disturbance b) Attenuation c) Interrupt d) Noise

Last Answer : Answer: c Explanation: An interrupt is a kind of request which takes control of the system bus for some time, then performs all the operations and gives back control to the CPU. It is usually identified by some number and is handled by the interrupt controller

_________ is the random and unpredictable electric signals from natural causes, both internal and external to the system. A. Interference B. Attenuation C. Distortion D. Noise

Description : _________ is the random and unpredictable electric signals from natural causes, both internal and external to the system. A. Interference B. Attenuation C. Distortion D. Noise

Last Answer : D. Noise

Under normal condition, a single fiber should not be used for a two-way communication mainly because of ∙ a. Loss ∙ b. Fading ∙ c. Noise ∙ d. Attenuation

Description : Under normal condition, a single fiber should not be used for a two-way communication mainly because of ∙ a. Loss ∙ b. Fading ∙ c. Noise ∙ d. Attenuation

Last Answer : ∙ c. Noise

The attenuation in a good dielectric will be non- zero. State True/False. a) True b) False

Description : The attenuation in a good dielectric will be non- zero. State True/False. a) True b) False

Last Answer : a) True

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 load resistor B. noise factor expressed in decibels C. an unwanted form of energy tending to interfere with the proper and easy reception and reproduction of wanted signal D. S/N of an ideal system divided by S/N at the output of the receiver or amplifier under test, both working at the same temperature over the same bandwidth and fed from the same source

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

Reduction of signal strength during transmission is called attenuation. -Technology

Description : Reduction of signal strength during transmission is called attenuation. -Technology

Last Answer : TrueDuring transmission, the signal strength is reduced, this phenomenon is called attenuation.

The loss in signal power as light travels down a fiber is called a. Dispersion b. Scattering c. Absorption d. Attenuation

Description : The loss in signal power as light travels down a fiber is called a. Dispersion b. Scattering c. Absorption d. Attenuation

Last Answer : d. Attenuation

ECE Board Exam November 1996 The loss in signal power as light travels down a fiber is A. attenuation B. propagation C. absorption D. scattering

Description : ECE Board Exam November 1996 The loss in signal power as light travels down a fiber is A. attenuation B. propagation C. absorption D. scattering

Last Answer : A. attenuation

Phenomena in which signal transmitted in one circuit creates undesired effect in other circuit is known as A. crosstalk B. signal attenuation C. sampling D. crosslinking

Description : Phenomena in which signal transmitted in one circuit creates undesired effect in other circuit is known as A. crosstalk B. signal attenuation C. sampling D. crosslinking

Last Answer : crosslinking

Decrease in strength of signal is known as A. tuning B. modulation C. attenuation D. amplification

Description : Decrease in strength of signal is known as A. tuning B. modulation C. attenuation D. amplification

Last Answer : attenuation

If the length of the fiber point defect changes with pulse duration, is the OTDR signal deviation a point defect or a region of high fiber attenuation?

Description : If the length of the fiber point defect changes with pulse duration, is the OTDR signal deviation a point defect or a region of high fiber attenuation?

Last Answer : A point defect.

Why are visible-light LEDs not used for fiber optics? ∙ a. It has high losses ∙ b. It has short wave ∙ c. It has low attenuation ∙ d. It has weak signal

Description : Why are visible-light LEDs not used for fiber optics? ∙ a. It has high losses ∙ b. It has short wave ∙ c. It has low attenuation ∙ d. It has weak signal

Last Answer : ∙ a. It has high losses

Band loss is ∙ a. A reduction in transmitter power caused by earth’s surface curvature ∙ b. A reduction in strength of the signal caused by folded dipole bends ∙ c. An attenuation increase caused by bends radiating from the side of the fiber ∙ d. All of these

Description : Band loss is ∙ a. A reduction in transmitter power caused by earth’s surface curvature ∙ b. A reduction in strength of the signal caused by folded dipole bends ∙ c. An attenuation increase caused by bends radiating from the side of the fiber ∙ d. All of these

Last Answer : c. An attenuation increase caused by bends radiating from the side of the fiber

The loss in signal power as light travels down a fiber is called ∙ a. Dispersion ∙ b. Scattering ∙ c. Absorption ∙ d. Attenuation

Description : The loss in signal power as light travels down a fiber is called ∙ a. Dispersion ∙ b. Scattering ∙ c. Absorption ∙ d. Attenuation

Last Answer : ∙ d. Attenuation

The loss in signal power as light travels down the fiber is called ............. A) Attenuation B) Propagation C) Scattering D) Interruption

Description : The loss in signal power as light travels down the fiber is called ............. A) Attenuation B) Propagation C) Scattering D) Interruption

Last Answer : A) Attenuation

The loss in signal power as light travels down the fiber is called ............. A) Attenuation B) Propagation C) Scattering D) Interruption

Description : The loss in signal power as light travels down the fiber is called ............. A) Attenuation B) Propagation C) Scattering D) Interruption

Last Answer : A) Attenuation

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 : 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

The .............. measures the relative strengths of two signals or a signal at two different points. (A) frequency (B) attenuation (C) throughput (D) decibel

Description : The .............. measures the relative strengths of two signals or a signal at two different points. (A) frequency (B) attenuation (C) throughput (D) decibel

Last Answer : (D) decibel

In an Ethernet local area network, which one of the following statements is TRUE ? a. A station stops to sense the channel once it starts transmitting a frame. b. The purpose of the jamming signal is to pad the frames that are smaller than the minimum frame size. c. A station continues to transmit the packet even after the collision is detected. d. The exponential backoff mechanism reduces the probability of collision on retransmissions

Description : In an Ethernet local area network, which one of the following statements is TRUE ? a. A station stops to sense the channel once it starts transmitting a frame. b. The purpose ... collision is detected. d. The exponential backoff mechanism reduces the probability of collision on retransmissions

Last Answer : The exponential backoff mechanism reduces the probability of collision on retransmissions

Which of the following is an advantage to using fiber optics data transmission? a. resistance to data theft b. fast data transmission rate c. low noise level d. all of above

Description : Which of the following is an advantage to using fiber optics data transmission? a. resistance to data theft b. fast data transmission rate c. low noise level d. all of above

Last Answer : fast data transmission rate

Does chain smoking cigarettes impair you mentally or something?

Description : Does chain smoking cigarettes impair you mentally or something?

Last Answer : answer:Likely withdraw. Quitting is not easy, but it can be done. I quit over 15 years ago, and have lived with a smoker the past 10. Zyban helped me, in that it curbed my appetite so there was ... had a smoke right now, I would! Thereby making a liar out of yourself, the next cigarette you meet.

What has the ability to destroy entire cities and impair electronics?

Description : What has the ability to destroy entire cities and impair electronics?

Last Answer : Well, the electromagnetic pulse generated by a high yieldnuclear explosion inside the ionosphere will effectively destroyall modern electronics within a radius of several thousand milesaround the point ... recover after the pulse passes.To destroy cities the nuclear explosion must happen NEARthem.

Which one has the ability to destroy entire cities and impair electronic communication?

Description : Which one has the ability to destroy entire cities and impair electronic communication?

Last Answer : Nuclear Weapon Detonations

Which on has the ability to destroy entire cities and impair electronic communications systems?

Description : Which on has the ability to destroy entire cities and impair electronic communications systems?

Last Answer : Nuclear Weapon Detonation

Which has ability to destroy entire cities and impair electronic communication system?

Description : Which has ability to destroy entire cities and impair electronic communication system?

Last Answer : cbrn hazard marker for a chemical hazard

Which one has the ability to destroy entire cities and impair electronic communication system?

Description : Which one has the ability to destroy entire cities and impair electronic communication system?

Last Answer : Nuclear Weapon Detonations

The removal of paint from electrical equipment, such as generators, should be cautiously undertaken because ____________. A. the mechanical shock of paint removal lessens the dielectric strength of the insulation B. the paint dust is composed of abrasive and semi-conducting materials which impair insulation C. paint dust buildup has a tendency to cause corrosion D. phase windings frequently become isolated from each other due to dust interference at the terminals

Description : The removal of paint from electrical equipment, such as generators, should be cautiously undertaken because ____________. A. the mechanical shock of paint removal lessens the dielectric strength ... phase windings frequently become isolated from each other due to dust interference at the terminals

Last Answer : Answer: B

Which of the following statements is correct? a. Sufficiency refers to the quality of evidence, while appropriateness refers to the quantity of evidence. b. The reliability of evidence is influenced not by its nature but by its source. c. The performance of consulting services for audit clients does not, in and of itself, impair the auditor’s independence. d. A belief that management and those charged with governance are honest and have integrity relieves the auditor of the need to maintain professional scepticism.

Description : Which of the following statements is correct? a. Sufficiency refers to the quality of evidence, while appropriateness refers to the quantity of evidence. b. The reliability of evidence is ... are honest and have integrity relieves the auditor of the need to maintain professional scepticism.

Last Answer : The performance of consulting services for audit clients does not, in and of itself, impair the auditor’s independence

Which of the following will impair the independence of a CPA in public practice? a. He has his name and address listed on a one-page section of the telephone book. b. He obtained a loan from a bank under the normal lending procedures, terms and requirements of that bank. c. He holds one share of the client's capital stock. d. He failed to disclose a client's departure from GAAP.

Description : Which of the following will impair the independence of a CPA in public practice? a. He has his name and address listed on a one-page section of the telephone book. b. He obtained a loan from a bank ... one share of the client's capital stock. d. He failed to disclose a client's departure from GAAP.

Last Answer : He holds one share of the client's capital stock.

Which of the following statements concerning consulting services is incorrect? a. The performance of consulting services for audit clients does not, in and of itself, impair the auditor's independence. b. Consulting services differ fundamentally from the CPA's function of attesting to the assertions of other parties. c. Consulting services ordinarily involve external reporting. d. Most CPAs, including those who provide audit and tax services, also provide consulting services to their clients

Description : Which of the following statements concerning consulting services is incorrect? a. The performance of consulting services for audit clients does not, in and of itself, impair the auditor's ... including those who provide audit and tax services, also provide consulting services to their clients

Last Answer : Consulting services ordinarily involve external reporting

A CPA’s retention of records as a means of enforcing payment of an overdue audit fee is an act that is: a. A violation of generally accepted auditing standards. b. Considered acceptable by the Code of Ethics. c. Ill advised since it would impair the CPA’s independence with respect to the client. d. Considered discreditable to the profession

Description : A CPA's retention of records as a means of enforcing payment of an overdue audit fee is an act that is: a. A violation of generally accepted auditing standards. b. Considered acceptable ... would impair the CPA's independence with respect to the client. d. Considered discreditable to the profession

Last Answer : Considered discreditable to the profession

Shortacting nifedipine formulation is not recommended now for treatment of hypertension because: A. It tends to increase heart rate and cardiac work B. It invokes pronounced reflex sympathetic discharges C. It can impair haemodynamics in patients with diastolic dysfunction D. All of the above

Description : Shortacting nifedipine formulation is not recommended now for treatment of hypertension because: A. It tends to increase heart rate and cardiac work B. It invokes pronounced reflex sympathetic discharges C. It can impair haemodynamics in patients with diastolic dysfunction D. All of the above

Last Answer : D. All of the above

Advantages of angiotensin converting enzyme inhibitors as antihypertensive include the following except: A. They tend to reverse left ventricular hypertrophy B. Their efficacy is not reduced by nonsteroidal antiinflammatory drugs C. They do not worsen blood lipid profile D. They do not impair work performance

Description : Advantages of angiotensin converting enzyme inhibitors as antihypertensive include the following except: A. They tend to reverse left ventricular hypertrophy B. Their efficacy is not reduced by nonsteroidal ... . They do not worsen blood lipid profile D. They do not impair work performance

Last Answer : B. Their efficacy is not reduced by nonsteroidal antiinflammatory drugs

The following antiepileptic drug is most likely to impair learning and memory, and produce behavioral abnormalities in children: A. Valproic acid B. Phenobarbitone C. Phenytoin D. Ethosuximide

Description : The following antiepileptic drug is most likely to impair learning and memory, and produce behavioral abnormalities in children: A. Valproic acid B. Phenobarbitone C. Phenytoin D. Ethosuximide

Last Answer : B. Phenobarbitone

Glucocorticoids impair carbohydrate tolerance by: A. Promoting gluconeogenesis in liver B. Depressing glucose uptake into skeletal muscles C. Inhibiting insulin secretion D. Both A and B are correct

Description : Glucocorticoids impair carbohydrate tolerance by: A. Promoting gluconeogenesis in liver B. Depressing glucose uptake into skeletal muscles C. Inhibiting insulin secretion D. Both A and B are correct

Last Answer : D. Both A and B are correct