QUESTION ONE – (30 MARKS)
(a) Building environment is an important consideration in any given design. Explain.
(2 Marks)
(b) Define the following terms:
(i) Thermal comfort (2 Marks)
(ii) Indoor climate (2 Marks)
(c) Briefly elaborate any 3 physical variables that affect the Thermal comfort in a given
building. (6 Marks)
(d) Elaborate 3 main functions of artificial lighting (6 Marks)
(e) (i) Define the term “daylight factor” (2 Marks)
(ii) A minimum daylight factor of 4 percent is required at a certain point inside a room.
Calculate the natural illuminance that this represents assuming that an unobstructed
standard sky gives an illuminance of 5000lx (4 Marks)
(f) Differentiate between airborne sound and impact sound. (4 Marks)
(g) A particular sound wave has a frequency of 440Hz and a velocity of 340 m/s. Calculate
the wavelength of this sound. (2 Marks)
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