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Nhbrc Questions 011 to 015

HomeNhbrc Questions 011 to 015

NHBRC QUESTIONS 11 - 15

11)Backfill and bedding shall be placed in layers……. (mechanical compaction)
a)Of 200mm thickness
b)Of 150mm thickness
c)Not exceeding 100mm
d)Of 500mm thickness

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12)What is the maximum distance between a backfill & a concrete slab?
a)600mm
b)700mm
c)1000mm
d)1300mm

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13)The upper surface of the floor slab shall be a minimum of …. mm above finish floor level?
a)250mm
b)350mm
c)150mm
d)100mm

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14)….. is when a housing unit has a floor level of less than 150mm above finished surface level
a)Raft slab
b)Upper surface
c)Slab on the ground
d)Semi basement

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15)The maximum height of fill beneath floor slab and slab on the ground foundation measured at the lowest point shall not exceed….mm unless certified by a competent person
a)200 mm
b)400 mm
c)300 mm
d)500 mm

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