RCC Structures Design MCQ Questions & Answers

31

The radius of a bar bend to form a hook, should not be less than

A) Twice the diameter B) Thrice the diameter C) Four times the diameter D) Five times the diameter

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Answer & Solution

Answer: Option A

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32

If T and R are tread and rise respectively of a stair, then

A) 2R + T = 60 B) R + 2T = 60 C) 2R + T = 30 D) R + 2T = 30

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Answer & Solution

Answer: Option A

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33

If A is the area of the foundation of a retaining wall carrying a load W and retaining earth of weight 'w' per unit volume, the minimum depth (h) of the foundation from the free surface of the earth, is

A) $${\text{h}} = \frac{{\text{W}}}{{{\text{Aw}}}}\left[ {\frac{{1 - \sin \varphi }}{{1 + \sin \varphi }}} \right]$$ B) $${\text{h}} = \frac{{\text{W}}}{{{\text{Aw}}}}\left[ {\frac{{1 + \sin \varphi }}{{1 - \sin \varphi }}} \right]$$ C) $${\text{h}} = \frac{{\text{W}}}{{{\text{Aw}}}}{\left[ {\frac{{1 - \sin \varphi }}{{1 + \sin \varphi }}} \right]^2}$$ D) $${\text{h}} = \sqrt {\frac{{\text{W}}}{{{\text{Aw}}}}} {\left[ {\frac{{1 - \sin \varphi }}{{1 + \sin \varphi }}} \right]^2}$$

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Answer & Solution

Answer: Option C

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34

An intermediate T-beam reinforced with two layers of tensile steel with clear cover 13 cm encased with the floor of a hall 12 meters by 7 meters, is spaced at 3 meters from adjoining beams and if the width of the beam is 20 cm, the breadth of the flange is

A) 300 cm B) 233 cm C) 176 cm D) 236 cm

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Answer & Solution

Answer: Option C

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35

A part of the slab may be considered as the flange of the T-beam if

A) Flange has adequate reinforcement transverse to beam B) It is built integrally with the beam C) It is effectively bonded together with the beam D) All the above

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Answer & Solution

Answer: Option D

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36

If the maximum dip of a parabolic tendon carrying tension P is h and the effective length of the pre-stressed beam is L, the upward uniform pressure will be

A) $$\frac{{8{\text{hP}}}}{l}$$ B) $$\frac{{8{\text{hP}}}}{{{l^2}}}$$ C) $$\frac{{8{\text{h}}l}}{{\text{P}}}$$ D) $$\frac{{8{\text{h}}l}}{{{{\text{P}}^2}}}$$

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Answer & Solution

Answer: Option B

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37

Pick up the incorrect statement from the following: Tensile reinforcement bars of a rectangular beam

A) Are curtailed if not required to resist the bending moment B) Are bent up at suitable places to serve as shear reinforcement C) Are bent down at suitable places to serve as shear reinforcement D) Are maintained at bottom to provide at least local bond stress

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Answer & Solution

Answer: Option C

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38

According to the steel beam theory of doubly reinforced beams

A) Tension is resisted by tension steel B) Compression is resisted by compression steel C) Stress in tension steel equals the stress in compression steel D) All the above

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Answer & Solution

Answer: Option D

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39

The width of the flange of a T-beam, which may be considered to act effectively with the rib depends upon

A) Breadth of the rib B) Overall thickness of the rib C) Centre to centre distance between T-beams D) All the above

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Answer & Solution

Answer: Option D

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40

An R.C.C. lintel is spanning an opening of 2 m span in a brick wall. The height of the roof is 2.9 m above the floor level and that of the opening is 2.1 m above the floor level. The lintel is to be designed for self weight plus

A) Triangular load of the wall B) UDL of wall C) UDL of wall + load from the roof D) Triangular load + load from the roof

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Answer & Solution

Answer: Option C

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RCC Structures Design MCQ Questions & Answers | Civil Engineering