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Civil Engineering Objective Questions { RCC Structure Design }

92. The ratio of the breadth to effective depth of a beam is kept

93. For initial estimate for a beam design, the width is assumed
A. 1/15th of span
B. 1/20th of span
C. 1/25th of span
D. 1/30th of span

94. A ribbed slab is provided for
A. a plain ceiling
B. thermal insulation
C. acoustic insulation
D. all the above.

95. The thickness of the topping of a ribbed slab, varies between
A. 3 cm to 5 cm
B. 5 cm to 8 cm
C. 8 cm to 10 cm
D. 12 cm to 15 cm

96. The breadth of a ribbed slab containing two bars must be between
A. 6 cm to 7.5 cm
B. 8 cm to 10 cm
C. 10 cm to 12 cm
D. 12 cm to 15 cm

97.  The maximum diameter of a bar used in a ribbed slab, is
A. 12 mm
B. 6 mm
C. 20 mm
D. 22 mm

98.  The maximum permissible size of aggregates to be used in casting the ribs of a slab, is
A. 5 mm
B. 7.5 mm
C. 10 mm
D. 15 mm

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