Felt and mineral wool are examples of ___________(a) Non-porous rigid partitions(b) Porous rigid materials(c) Non-rigid porous materials(d) Non-rigid non-porous materialsThe question was asked in an international level competition.This intriguing question originated from Acoustics topic in chapter Acoustics and Ventilation of Construction & Building Materials

Felt and mineral wool are examples of ___________(a) Non-porous rigid

1.	Felt and mineral wool are examples of ___________(a) Non-porous rigid partitions(b) Porous rigid materials(c) Non-rigid porous materials(d) Non-rigid non-porous materialsThe question was asked in an international level competition.This intriguing question originated from Acoustics topic in chapter Acoustics and Ventilation of Construction & Building Materials
Answer» The correct choice is (c) Non-rigid porous materials Best explanation: FELT and mineral wool are examples of non-rigid porous materials. These materials are not USUALLY USED for the purpose of noise reduction because the SOUND insulation provided by them is LOW as compared to the rigid materials.

Discussion

No Comment Found

Related InterviewSolutions

Which of the following relations between loudness and intensity is correct?(a) I ∝ log L(b) I ∝ log L^2(c) L ∝ log I(d) L ∝ log I^2The question was asked in semester exam.Enquiry is from Acoustics topic in division Acoustics and Ventilation of Construction & Building Materials
________________ is the process by which the required amount of moisture is taken out from the air.(a) Condensation(b) Dehumidification(c) Humidification(d) AbsorptionThe question was asked by my college director while I was bunking the class.I would like to ask this question from Variations in Ventilation System with Climate in chapter Acoustics and Ventilation of Construction & Building Materials
______________ is very important to control the noise pollution near an Auditorium area.(a) Seating arrangement(b) Site selection(c) Balcony(d) VolumeThe question was posed to me by my college director while I was bunking the class.My question is from Acoustics in chapter Acoustics and Ventilation of Construction & Building Materials
____________ is a very important consideration in the acoustic design of an Auditorium and it involves geometrical aspects of the hall.(a) Site selection(b) Seating arrangement(c) Shape(d) Sound absorptionI had been asked this question in an interview for job.Question is from Acoustics in division Acoustics and Ventilation of Construction & Building Materials
The rate of amount of water vapour present to the amount it would have contained, had it been saturated, is known as the ___________ the temperature being same.(a) Relative humidity(b) Saturated air(c) Dry bulb temperature(d) Wet bulb temperatureThis question was addressed to me in an international level competition.The origin of the question is Types of Ventilation topic in portion Acoustics and Ventilation of Construction & Building Materials
For atmospheric air medium, the sound velocity at 20°C is about ________(a) 340(b) 1305(c) 338(d) 2600I got this question during an online exam.This is a very interesting question from Acoustic Design of Auditorium in section Acoustics and Ventilation of Construction & Building Materials
A _________________ produced by sound may shatter windows and can cause damage to the Plaster of walls.(a) Wind blow(b) Sonic boom(c) Explosion(d) LightingThis question was posed to me in final exam.Question is taken from Acoustic Design of Auditorium topic in section Acoustics and Ventilation of Construction & Building Materials
The interior surfaces of walls in a studio should be of ________ materials.(a) Absorbent(b) Adsorbent(c) Reflective(d) RefractiveThis question was addressed to me in quiz.Origin of the question is Acoustical Design of Halls and Studios topic in portion Acoustics and Ventilation of Construction & Building Materials
In a studio, the noise level should be brought down to ___________(a) 5-10 dB(b) 10-15 dB(c) 20-30 dB(d) 50-60 dBThis question was posed to me in exam.Question is taken from Acoustical Design of Halls and Studios topic in section Acoustics and Ventilation of Construction & Building Materials
In the acoustical design of a hall or an auditorium, the angle between the side walls and the curtain line should not be more than _________ degrees.(a) 20(b) 150(c) 100(d) 180I got this question during an interview.My doubt is from Acoustical Design of Halls and Studios topic in chapter Acoustics and Ventilation of Construction & Building Materials

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment