17. The inspection pit or chamber is a manhole provided in a base drainage system
- At every change of direction
- At every change of gradient
- At every 30 m intervals
- All the above
Answer: D
18. Pick up the incorrect statement from the following:
- Dimensions are measured to the nearest 0.01 m
- Areas are measured to the nearest 0.01 sq.m
- Cubic contents are measured to the nearest 0.1 cum
- Weights are measured to the nearest 0.001 tonnes
Answer: C
19. The ‘center line method’ is specially adapted for estimating
- Circular buildings
- Hexagonal buildings
- Octagonal buildings
- All the above
Answer: D
20. Pick up the incorrect statement from the following:
- The built-up covered area at the floor level of any storey of a building is called the plinth area
- The usable covered area of the rooms of any storey of a building is called the carpet area
- The carpet area of a building along with an area of its kitchen, pantry, store, lavatory, bathroom, and glazed veranda, is called the floor area
- None of these
Answer: D
21. The unit of measurement is per quintal for the following:
- Collapsible gates with rails
- Rolling shutters
- Expanded metal wire netting
- M.S. reinforcement of R.C.C. works
Answer: D
22. The diameter of a domestic sewer pipe laid at a gradient 1 in 100 is recommended
- 100 mm
- 150 mm
- 200 mm
- 175 mm
Answer: B
23. The order of booking dimensions is
- Length, breadth, height
- Breadth, length, height
- Height, breadth, length
- None of these
Answer: A
24. Pick up the incorrect statement regarding a master trap from the following:
- It is provided in between the lower end of the house drain and the street sewer
- It provides a cleaning eye at the top of the trap
- The mica flap valve which opens inwards only, is fitted at the top of the inlet pipe
- The water seal is less than that of ordinary traps
Answer: D
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25. S: 1 and length is
- d × d × s
- d2 × ( ds)2]
- L.D 1 + s2)
- 2 L.D 1 + s 2)
Answer: C
26. The detention Period in a septic tank is assumed
- 20 minutes
- 25 minutes
- 30 minutes
- 40 minutes
Answer: C
27. If B is the width of formation, d is the height of the embankment, side slope S: 1, for a highway with no transverse slope, the area of cross-section is
- B + d + Sd
- Bd + Sd2
- B × d – Sd1/2
- ½ (Bd + Sd2)
Answer: B
28. The ground surface slopes 1 in 50 along a proposed railway embankment 150 m in length. The height of the embankment at zero chainage is 0.5 m, the width is 11 m, and the side slopes are 2:1.
If the falling gradient of the embankment is 1 in 150, the quantity of the earthwork calculated by the Prismoidal formula is
- 3250 m3
- 3225 m3
- 3275 m3
- 3300 m3
Answer: B
29. Pick up the item of work not included in the plinth area estimate
- Wall thickness
- Room area
- W.C. area
- Courtyard area
Answer: D
30. The minimum width of a septic tank is taken
- 70 cm
- 75 cm
- 80 cm
- 90 cm
Answer: B
31. Pick up the item whose weight is added to the weight of the respective item, which is
- Cleats
- Brackets
- Bolts
- All the above
Answer: D
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