Building Construction

11. A stair should not have pitch more than

  1. 25°
  2. 30°
  3. 40°
  4. 50°

Correct answer: (C)
40°

12. A temporary rigid structure having platforms to enable masons to work at different stages of a building, is known as

  1. Scaffolding
  2. Dead shore
  3. Raking shore
  4. Under pinning

Correct answer: (A)
Scaffolding

13. A wall constructed to resist the pressure of an earth filling, is called

  1. Retaining wall
  2. Breast wall
  3. Buttress
  4. Parapet wall

Correct answer: (A)
Retaining wall

14. A wall constructed with stones to protect slopes of cuttings in natural ground from the action of weathering agents, is called

  1. Retaining wall
  2. Breast wall
  3. Buttress
  4. Parapet wall

Correct answer: (B)
Breast wall

15. A wooden block fixed on back side of a door frame on its post, is known as

  1. Cleat
  2. Stop
  3. Horn
  4. None of these

Correct answer: (B)
Stop

16. A wooden block hinged on post outside a door, is known

  1. Cleat
  2. Stop
  3. Horn
  4. None of these

Correct answer: (A)
Cleat

17. According to National Building Code, the hydrants in water mains is provided at minimum interval of

  1. 50 m
  2. 60 m
  3. 75 m
  4. 90 m

Correct answer: (C)
75 m

18. According to Rankine's formula, minimum depth of foundations, is

  1. (P/w) × [(1 + sin φ)/(1 - φ)]2
  2. (P/w) × [(1 - sin φ)/(1 + φ)]2
  3. (P/2w) × [(1 - sin φ)/(1 + φ)]2
  4. (P/w) × [(1 + sin φ)/(1 - φ)]

Correct answer: (B)
(P/w) × [(1 - sin φ)/(1 + φ)]2

19. An arch constructed with finely dressed stones, is known

  1. Ashlar arch
  2. Rubble arch
  3. Gauged arch
  4. Axed arch

Correct answer: (A)
Ashlar arch

20. An arch may fail due to

  1. Uneven settlement of abutments
  2. Sliding of voussoirs
  3. Crushing of the material
  4. All the above

Correct answer: (D)
All the above

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