Civil Engineering Building Construction Important MCQs – 8

71​​ 

For effective drainage, the finished surface of flat roof should have a minimum slope of​​ 

  • 1 in 20​​ 

  • 1 to 50​​ 

  • 1 in 10​​ 

  • 1 in 5​​ 

Answer: Option A​​ 

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72​​ 

Vertical construction joints are provided where the shearing forces are minimum in the case of​​ 

  • Slabs​​ 

  • Beams​​ 

  • Girders​​ 

  • All of these​​ 

Answer: Option D​​ 

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73​​ 

Single Flemish bond consists of​​ 

  • Double Flemish bond facing and English bond backing in each course​​ 

  • English bond facing and double Flemish bond backing in each course​​ 

  • Stretcher bond facing and double Flemish bond backing in each course​​ 

  • Double Flemish bond facing and header bond backing in each course Answer: Option A​​ 

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74​​ 

The foundations are placed below ground level, to increase​​ 

  • Strength​​ 

  • Workability​​ 

  • Stability of structure​​ 

  • All the above​​ 

Answer: Option C​​ 

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75​​ 

The type of bond in a brick masonry containing alternate courses of stretchers and headers, is called​​ 

  • Flemish bond​​ 

  • English bond​​ 

  • Stretcher bond​​ 

  • Header bond​​ 

Answer: Option B​​ 

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76​​ 

The width of the hollow space between two walls of a cavity wall should not exceed​​ 

  • 5 cm​​ 

  • 7.5 cm​​ 

  • 10 cm​​ 

  • 15 cm​​ 

Answer: Option C​​ 

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77​​ 

The predominant constituent which is responsible for strength in granite is​​ 

  • Quartz​​ 

  • Felspar​​ 

  • Mica​​ 

  • None of the above​​ 

Answer: Option A​​ 

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78​​ 

To ensure that supporting area of an offset footing of a boundary wall is fully compressive, the C.G. of load must act​​ 

  • At the centre of the base​​ 

  • Within the middle third of the base​​ 

  • Within the middle fifth of the base​​ 

  • Neither (a), (b) nor (c)​​ 

Answer: Option B​​ 

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79​​ 

The size of a floor tile commonly used, is​​ 

  • 15 cm × 15 cm × 1.8 cm​​ 

  • 20 cm × 20 cm × 2 cm​​ 

  • 22.5 × 22.5 cm × 2.2 cm​​ 

  • All the above​​ 

Answer: Option D​​ 

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80​​ 

The art of bringing the floor to a true level surface by means of screeds, is called​​ 

(A) Topping (B) Bedding​​ 

  • Screeding​​ 

  • None of these​​ 

Answer: Option C​​