The unit of noise pollution (level) is : (1) decibel (2) decimal (3) ppm (4) None of these

The unit of noise pollution (level) is : (1) decibel (2) decimal (3) ppm (4) None of these 
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The unit of noise pollution (level) is – (1) decibel (2) decimal (3) ppm (4) None of these

Description : The unit of noise pollution (level) is – (1) decibel (2) decimal (3) ppm (4) None of these

Last Answer : (1) decibel Explanation: Noise pollution refers to any unpleasant, damaging or irritating noise that has the potential to harm people, wildlife or the environment. The decibel (dB) is the main unit used ... can also be measured. by its pitch, which is the frequency of sound vibrations per second.

Noise pollution level in a chemical plant is expressed in (A) Roentgen (B) Decibel (C) Hertz (D) None of these

Description : Noise pollution level in a chemical plant is expressed in (A) Roentgen (B) Decibel (C) Hertz (D) None of these

Last Answer : (B) Decibel

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 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 : Decibel

A decibel is – (1) A musical instrument (2) The wavelength of noise (3) A musical note (4) A measure of sound level

Description : A decibel is – (1) A musical instrument (2) The wavelength of noise (3) A musical note (4) A measure of sound level

Last Answer : (4) A measure of sound level Explanation: The decibel (dB) is a logarithmic unit that indicates the ratio of a physical quantity (usually power or intensity) relative to a specified or implied reference ... ratio in decibels is ten times the logarithm to base 10 of the ratio of two power quantities.

A decibel is (1) a musical instrument (2) the wavelength of noise (3) a musical note (4) a measure of sound level

Description : A decibel is (1) a musical instrument (2) the wavelength of noise (3) a musical note (4) a measure of sound level

Last Answer : a measure of sound level

Noise is measured in – (1) Watt (2) REM (3) Centigrade (4) Decibel

Description : Noise is measured in – (1) Watt (2) REM (3) Centigrade (4) Decibel

Last Answer : (4) Decibel Explanation: The decibel (dB) is a logarithmic unit that indicates the ratio of a physical quantity (usually power or intensity) relative to a specified or implied reference level. A ratio in ... from their roosts in caves, attics, or trees at dusk and hunt for insects into the night.

Noise is measured in (1) Watt (2) REM (3) Centigrade(4) Decibel

Description : Noise is measured in (1) Watt (2) REM (3) Centigrade(4) Decibel

Last Answer : Decibel

The Unit of noise pollution (level) is

Description : The Unit of noise pollution (level) is

Last Answer : decibel

Decibel is the unit of ______. (1) Speed of light (2) Intensity of sound (3) Intensity of heat (4) None of these

Description : Decibel is the unit of ______. (1) Speed of light (2) Intensity of sound (3) Intensity of heat (4) None of these

Last Answer : (2) Intensity of sound Explanation: Decibel (dB) unit is used for expressing the ratio between two amounts of electric or acoustic power for measuring the relative loudness of sounds.

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.

Decibel is the unit used for – (1) Speed of light (2) Intensity of heat (3) Intensity of sound (4) Radio wave frequency

Description : Decibel is the unit used for – (1) Speed of light (2) Intensity of heat (3) Intensity of sound (4) Radio wave frequency

Last Answer : (3) Intensity of sound Explanation: The decibel (abbreviated dB) is the unit used to measure the intensity of a sound. The decibel scale is a little odd because the human ear is incredibly ... of a physical quantity (usually power or intensity) relative to a specified or implied reference level.

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 : Sone

Decibel is the unit used for (1) Speed of light (2) Intensity of heat (3) Intensity of sound (4) Radio wave frequency

Description : Decibel is the unit used for (1) Speed of light (2) Intensity of heat (3) Intensity of sound (4) Radio wave frequency

Last Answer : Intensity of sound

_______ 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

________ 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 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

Steps taken by the Government of India to control air pollution include (a) compulsory PUC (Pollution under control) certification of petrol driven vehicles which tests for carbon monoxide and hydrocarbons (b) permission to use only pure diesel with a maximum of 500 ppm sulphur as fuel for vehicles (c) use of non-polluting compressed natural gas (CNG) only as fuel by all buses and trucks (d) compulsory mixing of 20% ethyl alcohol with petrol and 20% biodiesel with diesel.

Description : Steps taken by the Government of India to control air pollution include (a) compulsory PUC (Pollution under control) certification of petrol driven vehicles which tests for carbon monoxide and ... trucks (d) compulsory mixing of 20% ethyl alcohol with petrol and 20% biodiesel with diesel.

Last Answer : (a) compulsory PUC (Pollution under control) certification of petrol driven vehicles which tests for carbon monoxide and hydrocarbons

From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm. (A) 5 (B) 50 (C) 500 (D) 5000

Description : From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm. (A) 5 (B) 50 (C) 500 (D) 5000

Last Answer : (A) 5

Electrostatic precipitator is used to control the pollution of – (1) air (2) water (3) noise (4) thermal

Description : Electrostatic precipitator is used to control the pollution of – (1) air (2) water (3) noise (4) thermal

Last Answer : (1) air Explanation: An electrostatic precipitator (ESP), or electrostatic air cleaner is a particulate collection device that removes particles from a flowing gas (such as air) using the force of an ... particles from a flowing gas (such as air) using the force of an induced electrostatic charge.

Electrostatic precipitator is used to control — (1) Air pollution (2) Water pollution (3) Solid waste (4) Noise pollution

Description : Electrostatic precipitator is used to control — (1) Air pollution (2) Water pollution (3) Solid waste (4) Noise pollution

Last Answer : (1) Air pollution Explanation: An electrostatic precipitator (ESP), or electrostatic air cleaner is a particulate collection device that removes particles from a flowing has (such as air) using the force ... , and can easily remove fine particulate matter such as dust and smoke from the air stream.

Electrostatic precipitator is used to control – (1) Air pollution (2) Water pollution (3) Solid waste (4) Noise pollution

Description : Electrostatic precipitator is used to control – (1) Air pollution (2) Water pollution (3) Solid waste (4) Noise pollution

Last Answer : Air pollution

Electrostatic precipitator is used to control the pollution of (1) air (2) water (3) noise (4) thermal

Description : Electrostatic precipitator is used to control the pollution of (1) air (2) water (3) noise (4) thermal

Last Answer : air

Decibel is the unit of….

Description : Decibel is the unit of….

Last Answer : Sound

The use of Decibel unit is ……

Description : The use of Decibel unit is ……

Last Answer : Intensity of sound

The unit of pitch A. Decibel B. Phon C. Mel D. Sone

Description : The unit of pitch A. Decibel B. Phon C. Mel D. Sone

Last Answer : C. Mel

Sound become hazardous noise pollution at which level? -Do You Know?

Description : Sound become hazardous noise pollution at which level? -Do You Know?

Last Answer : answer:

Sound become hazardous noise pollution at which level? -Do You Know?

Description : Sound become hazardous noise pollution at which level? -Do You Know?

Last Answer : answer:

Sound become hazardous noise pollution at which level? -Do You Know?

Description : Sound become hazardous noise pollution at which level? -Do You Know?

Last Answer : answer:

Sound become hazardous noise pollution at which level? -Do You Know?

Description : Sound become hazardous noise pollution at which level? -Do You Know?

Last Answer : answer:

Sound become hazardous noise pollution at which level? -Do You Know?

Description : Sound become hazardous noise pollution at which level? -Do You Know?

Last Answer : answer:

Sound become hazardous noise pollution at which level? -Do You Know?

Description : Sound become hazardous noise pollution at which level? -Do You Know?

Last Answer : answer:

Sounds above what level are considered hazardous noise pollution?

Description : Sounds above what level are considered hazardous noise pollution?

Last Answer : Sounds above what level are considered hazardous noise pollution? A. 180 dB B. 140 dB C. 100 dB D. 80 dB

Sounds above what level are considered hazardous noise pollution?

Description : Sounds above what level are considered hazardous noise pollution?

Last Answer : Sounds above what level are considered hazardous noise pollution? A. Above 30 dB B. Above 80 dB C. Above 100 dB D. Above 120 dB

Soud becomes hazardous noise pollution at level.

Description : Soud becomes hazardous noise pollution at level.

Last Answer : Soud becomes hazardous noise pollution at level. A. Above 30 dB B. Above 80 dB C. Above 100 dB D. Above 120 dB

Acceptable "Noise Pollution Level" in India range between: (1) 16 - 35 db (2) 40 - 45 db (3) 70 - 100 db (4) 10 - 15 db

Description : Acceptable "Noise Pollution Level" in India range between: (1) 16 - 35 db (2) 40 - 45 db (3) 70 - 100 db (4) 10 - 15 db

Last Answer : (2) 40 - 45 db Explanation: According to the noise pollution rules, the permissible noise level during the day is 50dB in silence zones, 55dB in residential areas, 65 dB in commercial areas and 75 ... areas, commercial areas and industrial areas are respectively 40 dB, 45 dB, 55 dB and 70 dB.

Sounds above what level are considered hazardous noise pollution? (a) Above 80 dB (b) Above 30 dB (c) Above 150 dB (d) Above 120 dB

Description : Sounds above what level are considered hazardous noise pollution? (a) Above 80 dB (b) Above 30 dB (c) Above 150 dB (d) Above 120 dB

Last Answer : (d) Above 120 dB

Sound becomes hazardous noise pollution at level a) Above 30 dB b) Above 80 dB c) Above 100 dB d) Above 120 dB.

Description : Sound becomes hazardous noise pollution at level a) Above 30 dB b) Above 80 dB c) Above 100 dB d) Above 120 dB.

Last Answer : b) Above 80 dB

1. With which India’s progress has been reasonably satisfactory in connection? 2. Critical criteria for the location of an aluminium plant in India are the availability of which things? 3. From which place did the Aryans came to India? 4. Sound become hazardous noise pollution at which level? 5. Who is to conduct the elections to the Panchayats and Municipalities?

Description : 1. With which India's progress has been reasonably satisfactory in connection? 2. Critical criteria for the location of an aluminium plant in India are the availability of which things? 3. From which ... . What is the mean of Epigraphy? 20. Entamoeba histolytica is found in which part of man?

Last Answer : Answer : 1. Growth of GNP 2. Bauxite and electricity 3. Central Asia 4. Above 80 dB 5. State Election Commission 6. Copper 7. Centigrade 8. Divyavadana 9. Chennai 10. Henry Ford 11. Physalia 12. Argon ... . 6.2 1018 16. Taxation 17. Punjab 18. Krishna-I 19. The study of inscriptions 20. Intestine

Acceptable “Noise Pollution Level” in India range between: (1) 16 – 35 dec (2) 40 – 45 dec (3) 70 – 100 dec (4) 10 – 15 dec

Description : Acceptable “Noise Pollution Level” in India range between: (1) 16 – 35 dec (2) 40 – 45 dec (3) 70 – 100 dec (4) 10 – 15 dec

Last Answer : 40 – 45 dec 

What is decibel scale ?

Description : What is decibel scale ?

Last Answer : The scale by which the smallest change in human audible sound is measured is called the decibel scale. According to this scale, a word of 20 decibels is 10 times more intense than a word of 10 decibels and a word of 30 decibels is 100 times more intense.

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.

The ordinary and maximum tolerance limit of sound by human being is – (1) 50 db to 70 db (decibel) (2) 60 db to 80 db (decibel) (3) 65 db to 75 db (decibel) (4) 70 db to 85 db (decibel)

Description : The ordinary and maximum tolerance limit of sound by human being is – (1) 50 db to 70 db (decibel) (2) 60 db to 80 db (decibel) (3) 65 db to 75 db (decibel) (4) 70 db to 85 db (decibel)

Last Answer : (2) 60 db to 80 db (decibel) Explanation: Normal speech is about 60 dB (decibels). A dangerous sound is anything that is 80 dB or higher which can lead to hearing loss. At 70 dB or ... the risk of harm to healthy ears is negligible. Listening to sound above 80 decibels can cause profound deafness.

Decibel is a term connected with : (1) air (2) water (3) sound (4) soil

Description : Decibel is a term connected with : (1) air (2) water (3) sound (4) soil

Last Answer : (3) sound Explanation: The decibel (dB) is a logarithmic unit that indicates the ratio of a physical quantity (usually power or intensity) relative to a specified or implied reference level. A ratio in, decibels is ten times the logarithm to base 10 of the ratio of two power quantities.

Decibel is used to measure the intensity of - (1) Magnetic field (2) Sound (3) Light (4) Heat

Description : Decibel is used to measure the intensity of - (1) Magnetic field (2) Sound (3) Light (4) Heat

Last Answer : (2) Sound Explanation: The decibel (dB) is used to measure sound level, but it is also widely used in electronics, signals and communication.

How many times more intense is an 80 decibel sound than a 40 decibel sound? w) 2 x) 40 y) 1000 z) 10,000

Description : How many times more intense is an 80 decibel sound than a 40 decibel sound? w) 2 x) 40 y) 1000 z) 10,000

Last Answer : ANSWER: Z -- 10,000

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 : Candela

The ordinary and maximum tolerance limit of sound by human being is (1) 50 db to 70 db (decibel) (2) 60 db to 80 db (decibel) (3) 65 db to 75 db (decibel) (4) 70 db to 85 db (decibel)

Description : The ordinary and maximum tolerance limit of sound by human being is (1) 50 db to 70 db (decibel) (2) 60 db to 80 db (decibel) (3) 65 db to 75 db (decibel) (4) 70 db to 85 db (decibel)

Last Answer : 60 db to 80 db (decibel)

Decibel is a term connected with : (1) air (2) water (3) sound (4) soil

Description : Decibel is a term connected with : (1) air (2) water (3) sound (4) soil

Last Answer : sound