Q. For an echo to be distinguished as separate, it should reach the ear _________ of a second after the direct sound.
✅ Correct Answer: (D)
one-tenth
Building Technology and Architectural Planning MCQs | Page - 2
Dear candidates you will find MCQ questions of Building Technology and Architectural Planning here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. Reverberation time is directly proportional to ____________
✅ Correct Answer: (C)
volume of the room
Q. In the Sabine’s expression for reverberation time t=0.16V/A, A represents __________
✅ Correct Answer: (C)
total absorbing power
Q. Reverberation time is independent of the shape of the room.
✅ Correct Answer: (A)
True
Q. The absorption of a surface is the product of the __________ of the surface and its absorption coefficient.
✅ Correct Answer: (B)
area
Q. Calculate the transmission loss given the sound levels measured on either side of the wall is 60 dB and 40 dB.
✅ Correct Answer: (C)
60 db
Q. Hard materials used for sound insulation are good absorbers.
✅ Correct Answer: (B)
false
Q. n rigid homogeneous walls, the transmission loss of a one-brick wall is _________
✅ Correct Answer: (C)
50 db
Q. In cavity wall construction for soundproofing, the width of the cavity should be at least _________
✅ Correct Answer: (B)
5 cm
Q. The sound insulation offered by rigid homogenous walls decreases with the increase in the thickness of the wall.
✅ Correct Answer: (B)
false
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