Thermal insulation of hollow clay blocks is good because of ____________(a) Air within the cells of blocks(b) Air outside the cells of blocks(c) Resistance to water(d) Resistance to airThis question was posed to me in an online interview.My doubt is from Composite Masonry in chapter Composite Masonry of Construction & Building Materials

Thermal insulation of hollow clay blocks is good because of __________

1.	Thermal insulation of hollow clay blocks is good because of ____________(a) Air within the cells of blocks(b) Air outside the cells of blocks(c) Resistance to water(d) Resistance to airThis question was posed to me in an online interview.My doubt is from Composite Masonry in chapter Composite Masonry of Construction & Building Materials
Answer» The correct choice is (a) Air within the CELLS of blocks The best explanation: Hollow clay blocks are fireproof and THERMALLY insulated. The reason behind their good thermal insulation is the PRESENCE of a HUGE AMOUNT of air within the cells of these blocks.

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