not exceeding 2 to 3° about 15° 221° 20°
Answer Discuss in Comment
acoustic illusion sound produced uninterruptedly by a source persistence of sound even after the source of sound has ceased sound produced by a source intermittently
15 m x 15 m 100 m x 100 m 50 m x 50 m 30 m x 30 m
clay rock compact sand moist sand
Reid scale Kossi-Forrel scale Dalton scale Mohr's scale
abutment Buttress Pier Lateral support
timber paper diesel oil bitumen
it is heat insulating it is sound insulating both (a) and (b) none of the above
of the ceiling above ground level between flooring and ceiling of the roof above ground level none of the above
marble flooring terrazo flooring mossaic flooring all the above
"Scientists dream about doing great things. Engineers do them."
