The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as

The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as
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Audible sounds
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The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as – (1) Audible sounds (2) Ultrasonics (3) Infrasonics (4) Megasonics

Description : The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as – (1) Audible sounds (2) Ultrasonics (3) Infrasonics (4) Megasonics

Last Answer : (1) Audible sounds Explanation: An audio frequency is characterized as a periodic vibration whose frequency is audible to the average human. It is the property of sound that most determines ... 000 Hz, although the range of frequencies individuals hear is greatly influenced by environmental factors.

The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as (1) Audible sounds (2) Ultrasonics (3) Infrasonics (4) Megasonics

Description : The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as (1) Audible sounds (2) Ultrasonics (3) Infrasonics (4) Megasonics

Last Answer : Audible sounds

The sounds of which frequency are human beings most sensitive? A. 400 hertz B. 20 hertz C. 20000 hertz D. 5000 hertz (Answer)

Description : The sounds of which frequency are human beings most sensitive? A. 400 hertz B. 20 hertz C. 20000 hertz D. 5000 hertz (Answer)

Last Answer : D. 5000 hertz (Answer)

What range of frequencies are usually referred to as the Ultra High Frequency (UHF) Band? w) 3 to 30 Mega Hertz x) 30 to 300 Mega Hertz y) 300 to 3,000 Mega Hertz z) 30,000 to 300,000 Mega Hertz

Description : What range of frequencies are usually referred to as the Ultra High Frequency (UHF) Band? w) 3 to 30 Mega Hertz x) 30 to 300 Mega Hertz y) 300 to 3,000 Mega Hertz z) 30,000 to 300,000 Mega Hertz

Last Answer : ANSWER: Y -- 300 to 3,000 MEGA HERTZ

Humans can hear in the range of --- to ----Hertz (Hz).? A. 10 Hz to 10,000 Hz. B. 20 Hz to 20,000 Hz? C. 30 Hz to 30,000 Hz. D. 40 Hz to 40,000 Hz.

Description : Humans can hear in the range of --- to ----Hertz (Hz).? A. 10 Hz to 10,000 Hz. B. 20 Hz to 20,000 Hz? C. 30 Hz to 30,000 Hz. D. 40 Hz to 40,000 Hz.

Last Answer : B. 20 Hz to 20,000 Hz?

What range of frequencies are usually referred to as audio frequencies for humans? w) 0 to 20 Hertz x) 20 to 20,000 Hertz y) 200 to 200,000 Hertz z) 10,000 to 30,000 Hertz

Description : What range of frequencies are usually referred to as audio frequencies for humans? w) 0 to 20 Hertz x) 20 to 20,000 Hertz y) 200 to 200,000 Hertz z) 10,000 to 30,000 Hertz

Last Answer : ANSWER: X -- 20 TO 20,000 HERTZ

The maximum displacement of a vibrating body on either side of its central position is known as _______________. a)amplitude b)frequency c)time period d)hertz

Description : The maximum displacement of a vibrating body on either side of its central position is known as _______________. a)amplitude b)frequency c)time period d)hertz

Last Answer : a)amplitude

Sound of frequency below 20 Hz are called (a) Audio sounds (b) Infrasonics (c) Ultrasonics (d) Supersonics

Description : Sound of frequency below 20 Hz are called (a) Audio sounds (b) Infrasonics (c) Ultrasonics (d) Supersonics

Last Answer : Ans:(b)

Sound of frequency below 20 Hz is called ______. (1) audio sounds (2) infrasonic (3) ultrasonic (4) supersonics

Description : Sound of frequency below 20 Hz is called ______. (1) audio sounds (2) infrasonic (3) ultrasonic (4) supersonics

Last Answer : (2) infrasonic Explanation: The term "infrasonic" applied to sound refers to sound waves below the frequencies of audible sound and nominally includes anything under 20 Hz.

Sounds of frequency beyond 20,000Hz (20 kHz) are called

Description : Sounds of frequency beyond 20,000Hz (20 kHz) are called

Last Answer : Ultrasonic sounds.

What is the SI unit of frequency? (1) Newton (2) Watt (3) Farad (4) Hertz

Description : What is the SI unit of frequency? (1) Newton (2) Watt (3) Farad (4) Hertz

Last Answer : (4) Hertz Explanation: The number of waves or vibrations passing through a point in one second is called Frequency. The SI (System International) Unit of Frequency is Hertz(Hz).

Hertz is a unit for measuring – (1) Intensity of waves (2) Frequency of waves (3) Wavelength (4) Clarity of waves

Description : Hertz is a unit for measuring – (1) Intensity of waves (2) Frequency of waves (3) Wavelength (4) Clarity of waves

Last Answer : (2) Frequency of waves

What will be the frequency of a three-phase, six pole, AC generator operating at 1800 revolutions per minute? A. 60 hertz B. 90 hertz C. 120 hertz D. 180 hertz

Description : What will be the frequency of a three-phase, six pole, AC generator operating at 1800 revolutions per minute? A. 60 hertz B. 90 hertz C. 120 hertz D. 180 hertz

Last Answer : Answer: B

A turbogenerator has a rated output of 1200 KW at 60 Hertz, with a no load frequency of 61.5 Hertz. What is its speed droop? A. 1.03% B. 1.50% C. 2.44% D. 2.50%

Description : A turbogenerator has a rated output of 1200 KW at 60 Hertz, with a no load frequency of 61.5 Hertz. What is its speed droop? A. 1.03% B. 1.50% C. 2.44% D. 2.50%

Last Answer : Answer: D

An alternator is being paralleled with one on the line. At the INSTANT the circuit breaker is closed, the frequency of the incoming alternator will normally _____________. A. increase B. not change C. decrease D. be exactly 60 hertz

Description : An alternator is being paralleled with one on the line. At the INSTANT the circuit breaker is closed, the frequency of the incoming alternator will normally _____________. A. increase B. not change C. decrease D. be exactly 60 hertz

Last Answer : Answer: C

If there is a reduction in the normally supplied frequency to a 120/240 volt, threephase AC current motor from 60 hertz to 55 hertz, the motor would _____________. A. run at a slower speed B. operate at a lower current C. overheat D. trip off the line

Description : If there is a reduction in the normally supplied frequency to a 120/240 volt, threephase AC current motor from 60 hertz to 55 hertz, the motor would _____________. A. run at a slower speed B. operate at a lower current C. overheat D. trip off the line

Last Answer : Answer: A

The effect of adding parasitic elements of a Hertz dipole is to A. make the antenna more omnidirectional B. reduce its resonant frequency C. increase the antenna’s power gain D. All of these

Description : The effect of adding parasitic elements of a Hertz dipole is to A. make the antenna more omnidirectional B. reduce its resonant frequency C. increase the antenna’s power gain D. All of these

Last Answer : C. increase the antenna’s power gain

A Hertz antenna is operating on a frequency of 2182 kHz and consists of a horizontal wire that is hanged between two towers. What is the frequency of its third harmonic? A. 727 kHz B. 6546 kHz C. 436 kHz D. 6.546 kHz

Description : A Hertz antenna is operating on a frequency of 2182 kHz and consists of a horizontal wire that is hanged between two towers. What is the frequency of its third harmonic? A. 727 kHz B. 6546 kHz C. 436 kHz D. 6.546 kHz

Last Answer : B. 6546 kHz

If the length of a Hertz dipole is decreased A. its resonant frequency will be lowered its distributed inductance will be increased B. its distributed inductance will be decreased C. its resonant frequency will be increased D. its distributed capacitance between the antenna and ground will be increased.

Description : If the length of a Hertz dipole is decreased A. its resonant frequency will be lowered its distributed inductance will be increased B. its distributed inductance will be decreased C. its ... frequency will be increased D. its distributed capacitance between the antenna and ground will be increased.

Last Answer : C. its resonant frequency will be increased

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

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

Pick up the correct statement from the following: (A) Frequency is the number of wave crests passing a fixed point in one second (B) Frequency of a wave is measured in Hertz (Hz) (C) Amplitude of a wave is the height of its crust from the mid-point (D) All of these

Description : Pick up the correct statement from the following: (A) Frequency is the number of wave crests passing a fixed point in one second (B) Frequency of a wave is measured in Hertz (Hz) (C) Amplitude of a wave is the height of its crust from the mid-point (D) All of these

Last Answer : Answer: Option D

The SI unit of frequency is _______. a)metre b)seconds c) hertz d)pascal

Description : The SI unit of frequency is _______. a)metre b)seconds c) hertz d)pascal

Last Answer : c) hertz

The frequency of a wave is 2/10 Hertz. What is the period of this wave?

Description : The frequency of a wave is 2/10 Hertz. What is the period of this wave? 

Last Answer : ANSWER: 5 SECONDS

The frequency of a wave is 50 Hertz and its wavelength is 25 meters. What is the velocity of this wave?

Description : The frequency of a wave is 50 Hertz and its wavelength is 25 meters. What is the velocity of this wave?

Last Answer : ANSWER: 1250 METERS/SECOND

The speed at which a wave propagates down a string is 300 meters per second. If the frequency of this wave is 150 Hertz, what is the wavelength of this wave?

Description : The speed at which a wave propagates down a string is 300 meters per second. If the frequency of this wave is 150 Hertz, what is the wavelength of this wave?

Last Answer : ANSWER: 2 METERS

The period of a signal is 10 ms. What is its frequency in Hertz ? (A) 10 (B) 100 (C) 1000 (D) 10000

Description : The period of a signal is 10 ms. What is its frequency in Hertz ? (A) 10 (B) 100 (C) 1000 (D) 10000

Last Answer : (B) 100

Suppose a digitized voice channel is made by digitizing 8 kHz bandwidth analog voice signal. It is required to sample the signal at twice the highest frequency (two samples per hertz). What is the bit rate required, if it is assumed that each sample requires 8 bits? (A) 32 kbps (B) 64 kbps (C) 128 kbps (D) 256 kbps

Description : Suppose a digitized voice channel is made by digitizing 8 kHz bandwidth analog voice signal. It is required to sample the signal at twice the highest frequency (two samples per hertz). What is the bit rate required, if it ... sample requires 8 bits? (A) 32 kbps (B) 64 kbps (C) 128 kbps (D) 256 kbps

Last Answer : (C) 128 kbps

Hertz is a unit for measuring (1) Intensity of waves (2) Frequency of waves (3) Wavelength (4) Clarity of waves

Description : Hertz is a unit for measuring (1) Intensity of waves (2) Frequency of waves (3) Wavelength (4) Clarity of waves

Last Answer : Frequency of waves

The frequency of ultrasound wave is typically – (1) Above 20 kHz (2) Above 20,000 kHz (3) Below 20 kHz (4) Below 02 kHz

Description : The frequency of ultrasound wave is typically – (1) Above 20 kHz (2) Above 20,000 kHz (3) Below 20 kHz (4) Below 02 kHz

Last Answer : (3) Below 20 kHz Explanation: Ultrasound is a cyclic sound pressure wave with a frequency greater than the upper limit of the human hearing range. Ultrasound is thus not separated from " ... in healthy, young adults. Ultrasound devices operate with frequencies from 20 kHz up to several gigahertz.

The frequency of ultrasound wave is typically (1) Above 20 kHz (2) Above 20,000 kHz (3) Below 20 kHz (4) Below 02 kHz

Description : The frequency of ultrasound wave is typically (1) Above 20 kHz (2) Above 20,000 kHz (3) Below 20 kHz (4) Below 02 kHz

Last Answer : Above 20 kHz

Sounds of frequency below 20Hz are called

Description : Sounds of frequency below 20Hz are called

Last Answer : infrasonic sound or subsonic sound.

Give reason: Ultrasonic sounds have high frequency.

Description : Give reason: Ultrasonic sounds have high frequency.

Last Answer : Ultrasonic sounds have high frequency because it has high energy.

When bowel sounds are heard about every 15 seconds, the nurse would record that the bowel sounds are a) normal. Normal bowel sounds are heard every 5-20 seconds. b) hypoactive. Hypoactive bowel sounds is the description given to auscultation of one to two bowel sounds in 2 minutes. c) sluggish. Sluggish is not a term a nurse would use to accurately describe bowel sounds. d) absent. The nurse records that bowel sounds are absent when no sound is heard in 3-5 minutes.

Description : When bowel sounds are heard about every 15 seconds, the nurse would record that the bowel sounds are a) normal. Normal bowel sounds are heard every 5-20 seconds. b) hypoactive. Hypoactive bowel sounds ... absent. The nurse records that bowel sounds are absent when no sound is heard in 3-5 minutes.

Last Answer : a) normal. Normal bowel sounds are heard every 5-20 seconds.

Is it possible for a person to have such sensitive hears that even low level everyday sounds like converersation,TV at low volume or riding in a car, can damage the ear and hearing? Causing a raise in tinittus. Any information would be helpful. I seem to be having this problem and none of the doctors have any answers ?

Description : Is it possible for a person to have such sensitive hears that even low level everyday sounds like converersation,TV at low volume or riding in a car, can damage the ear and hearing? Causing a raise in ... would be helpful. I seem to be having this problem and none of the doctors have any answers ?

Last Answer : answer:Have you seen a trained Audiologist for hearing test on all frequencies? That might give you some clues. And I assume that one of the Doctors was an ENT specialist? How old are you? ... . Tinnitus cause is still a medical mystery, I believe. (Shilolo, are you listening?) hearing sensitivity

What does the Hertz (Hz) designation in LCD TV specs mean?

Description : What does the Hertz (Hz) designation in LCD TV specs mean?

Last Answer : The refresh rate of the picture; as the screen is drawn , the pixels are refreshed a certain number of times per second, thus refresh rate. Rate is measured in cycles per second and ... , as some camera technologies suffer from refresh issues when acquiring the image (CMOS sensors in particular).

How many hertz can a human ear hear?

Description : How many hertz can a human ear hear?

Last Answer : What is the answer ?

How To Save Money With A Hertz Car Rental?

Description : How To Save Money With A Hertz Car Rental?

Last Answer : Hertz is the most recognizable name in the rental car industry.This leads to a lot of volume. Unfortunately, it also leads tohigher prices. Hertz is known for superb quality and service;therefore, higher prices can ... you're not going to be nearan airport, you can save as much as $10 per day and $3

What is the AAA membership rental car discount for Hertz?

Description : What is the AAA membership rental car discount for Hertz?

Last Answer : According to AAA website, the discount varies depending upon a number of factors, they state the discount is 5-20% savings on Hertz rentals worldwide.

Do I need special insurance to rent an automobile from Hertz rental?

Description : Do I need special insurance to rent an automobile from Hertz rental?

Last Answer : When renting an automobile from Hertz you will be offered the opportunity to take out Insurance for the time that you will be renting the car. It is a good idea to do so since your own auto insurance may not cover specific damages or losses.

Does Hertz offer cheap car rentals?

Description : Does Hertz offer cheap car rentals?

Last Answer : Yes, Hertz does offer cheap car rentals. They offer many discounts that apply to different persons. They also have a great selection of car in different size ranges from sedan, coupe, and more. You can find the car that fits you for a great price.

Hertz?

Description : Hertz?

Last Answer : Free Gift with Purchase

The ambulance is moving toward you and your sound technology measures the pitch at 645 hertz. The speed of the ambulance is therefore ______ m/s.?

Description : The ambulance is moving toward you and your sound technology measures the pitch at 645 hertz. The speed of the ambulance is therefore ______ m/s.?

Last Answer : *this is the full question not the answer* Suppose you’re standing on a sidewalk and down the street is an ambulance parked; it’s siren is a 600 Hz sound like it louder, Quieter, louder, quieter ... do use the facts given above to answer this:The ambulance is moving toward you and your sound te

What is the range, in hertz, of the normal human hearing?

Description : What is the range, in hertz, of the normal human hearing?

Last Answer : 20 Hz to 20 kHz

Which of the following are the best units of data on an external storage device? A) Bits B) Bytes C) Hertz D) Clock cycles

Description : Which of the following are the best units of data on an external storage device? A) Bits B) Bytes C) Hertz D) Clock cycles

Last Answer : Answer : B

Which term is not associated with sound wave? (1) Hertz (2) Decibel (3) Candela (4) Mach

Description : Which term is not associated with sound wave? (1) Hertz (2) Decibel (3) Candela (4) Mach

Last Answer : (3) Candela Explanation: Candela is the standard unit of luminous intensity, the luminous power per unit solid angle emitted by a point light source in a particular direction, in the International System of Units. The word candela means candle in Latin.

Which of the following is the unit of perceived loudness of sound? (1) Decibel (2) Sone (3) Hertz (4) Phon

Description : Which of the following is the unit of perceived loudness of sound? (1) Decibel (2) Sone (3) Hertz (4) Phon

Last Answer : (2) Sone Explanation: Loudness is a subjective characteristic of a sound (as opposed to the sound-pressure level in decibels, which is objective and directly measurable). Perceived loudness of sound ... on sound pressure level, the frequency spectrum, and the time behavior of the sound in question.

The scientist who first sent electromagnetic waves to distant places is – (1) James Clerk Maxwell (2) Heinrich Hertz (3) Thomas Alva Edison (4) John Logie Baird

Description : The scientist who first sent electromagnetic waves to distant places is – (1) James Clerk Maxwell (2) Heinrich Hertz (3) Thomas Alva Edison (4) John Logie Baird

Last Answer : (3) Thomas Alva Edison Explanation: Radio is the transmission of single through free space by electromagnetic radiation of a frequency significantly below that of visible light, in the radio frequency range, from about 30 kHz to 300 GHz. Those waves are called radio waves.

The unit of measurement of noise is – (1) Decibel (2) Hertz (3) Amplifier (4) Acoustics

Description : The unit of measurement of noise is – (1) Decibel (2) Hertz (3) Amplifier (4) Acoustics

Last Answer : (1) Decibel Explanation: The decibel (dB) is the unit used to measure the intensity of sound or noise level. It is given in terms of a logarithmic function of a ratio of power intensities. One ... one bel, named in honor of Alexander Graham Bell who was the inventor of the telephone and phonograph.

The refresh rate of monitor is measured in _______ A. byte B. seconds C. Hertz D. None of the Above

Description : The refresh rate of monitor is measured in _______ A. byte B. seconds C. Hertz D. None of the Above

Last Answer : C. Hertz

A four-pole 60-hertz induction motor has a synchronous speed of 1800 RPM and a slip of 4 percent at full load. What will be its full load speed? A. 1728.0 RPM B. 1730.7 RPM C. 1800.0 RPM D. 1872.0 RPM

Description : A four-pole 60-hertz induction motor has a synchronous speed of 1800 RPM and a slip of 4 percent at full load. What will be its full load speed? A. 1728.0 RPM B. 1730.7 RPM C. 1800.0 RPM D. 1872.0 RPM

Last Answer : Answer: A