Design of Reinforced Concrete structures (3160612) MCQs

MCQs of Design of Retaining wall

Showing 21 to 26 out of 26 Questions
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21.

The stem of a cantilever retaining wall which retains earth level with top is 6 m. If the angle of repose and weight of the soil per cubic metre are 30° and 2000 kg respectively, the effective width of the stem at the bottom, is

(a)

52.5
(b)

51.5
(c)

53.5
(d)

55.5
Answer:

Option (c)

22.

If W is weight of a retaining wall and P is the horizontal earth pressure, the factor of safety against sliding, is

(a)

1.0
(b)

1.5
(c)

2.5
(d)

2.5
Answer:

Option (b)

23.

The angle of repose of a soil is the maximum angle which the outer face of the soil mass makes

(a)

with the horizontal
(b)

with the vertical
(c)

with the perpendicular to. the inclined plane of the soil
(d)

none of these.
Answer:

Option (a)

24.

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)

h = WAW1-sin∅1 + sin∅
(b)

h = WAW1-sin∅1 + sin∅2
(c)

h = WAW1+sin∅1 - sin∅
(d)

h = WAW1+sin∅1 - sin∅2
Answer:

Option (b)

25.

In a cantilever retaining wall without a heel slab

(a)

thickness of the stem is kept same throughout
(b)

base slab is made 10 cm thicker than the stem
(c)

width of the base slab is kept 0.7 time the total height of the wall
(d)

all the above.
Answer:

Option (d)

26.

The design of heel slab of a retaining wall, is based on the maximum bending moment due to:

(a)

its own weight
(b)

weight of the soil above it,
(c)

upward soil reaction
(d)

all the above.
Answer:

Option (d)

Showing 21 to 26 out of 26 Questions
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