Building Construction

21. An ordinary concrete may be made water proof by adding

  1. Pudlo
  2. Impermo
  3. Snowcem
  4. All of these

Correct answer: (D)
All of these

22. Arches in the form of masonry arcs struck from more than four centres, are called

  1. Two curved arches
  2. Gothic arches
  3. Ogee arches
  4. Drop gothic arches

Correct answer: (C)
Ogee arches

23. As compared to English bond, double Flemish bond is

  1. Stronger
  2. More compact
  3. Costly
  4. None of the above

Correct answer: (B)
More compact

24. As compared to stretcher course, the thickness of joints in header course should be

  1. Less
  2. More
  3. Equal
  4. Equal or more

Correct answer: (A)
Less

25. Assertion A : Shishum is used for decorative woodwork. Reason R : Shishum can be polished to an excellent finish. Select your answer according to the coding system given below:

  1. Both A and R is true and R is the correct explanation of A
  2. Both A and R is true but R is not the correct explanation of A
  3. A is true but R is false
  4. A is false but R is true

Correct answer: (A)
Both A and R is true and R is the correct explanation of A

26. Auger boring

  1. Is the most primitive method for making a hole in the ground
  2. Is generally employed in cohesive and other self soils above water table
  3. Is most economical upto a depth of 5 metres
  4. All the above

Correct answer: (D)
All the above

27. Bearing capacity of soils cannot be improved by

  1. Draining sub-soil water
  2. Ramming crushed stone in soil
  3. Driving sand piles
  4. Watering surface of soil

Correct answer: (D)
Watering surface of soil

28. Best type of piles for soft soil having little resistance to the flow of concrete, is

  1. Simplex pile
  2. Vibro pile
  3. Raymond pile
  4. Franki pile

Correct answer: (B)
Vibro pile

29. Black cotton soil is unsuitable for foundations because its

  1. Bearing capacity is low
  2. Permeability is uncertain
  3. Particles are cohesive
  4. Property to undergo a volumetric change due to variation of moisture content

Correct answer: (D)
Property to undergo a volumetric change due to variation of moisture content

30. Brick nogging type of partition wall, is constructed by

  1. Laying bricks as stretchers in cement mortar
  2. Laying bricks as headers in cement mortar
  3. Reinforcing brick wall with iron straps
  4. Constructing brick work within a wooden framework

Correct answer: (D)
Constructing brick work within a wooden framework

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