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Nhbrc Questions 121 to 125

HomeNhbrc Questions 121 to 125

NHBRC QUESTIONS 121 - 125

121)Reinforcing should be clean of ….. before casting concrete?
a)Rust layers and oil paint
b)Water & Dirt
c)Moisture & Dirt
d)All of the above

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122)Cover to reinforcement shall not be less than ….. mm?
a)25 mm
b)50 mm
c)75 mm
d)100 mm

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123)Reinforcement splicing shall be at least
a)300 mm
b)500 mm
c)600 mm
d)1000 mm

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124)The concrete shall be of such workability that it can readily be?
a)The concrete shall be of such workability that it can be readily compacted into the corners of the framework and around reinforcement without segregation of the materials or excessive bleeding of free water at the surface.
b)Of the framework outside reinforcement without segregation of the materials
c)Of the framework inside unreinforcement without segregation of the materials
d)Of the framework inside unreinforcement with segregation of materials

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125)What does a slump test indicate about concrete properties on site?
a)Workability
b)Strength
c)Creep properties
d)Tensile

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