A. h /4
B. h/3
C. h/2
D. 2h/3
Related Mcqs:
- If p1 and P2 are effective lateral loadings at the bottom and top exerted by a level earth subjected to a super-load on the vertical face of height h of a retaining wall, the horizontal pressure p per unit length of the wall, is____________________?
A. [( – )/2] h
B. [( + )/4] h
C. [( + )/2] h
D. ( – h - per unit run exerted by the Total pressure on the vertical face of a retaining wall of height retained earth weighing per unit volume, is___________________?
A. wh [(1 – )/(1 + sin )]
B. wh² [(1 – )/(1 + sin )]
C. wh² [(1 – )/2(1 + sin )]
D. wh² [(1 – )/3(1 + sin )] - If is the overall height of a retaining wall retaining a surcharge, the width of the base slab usually provided, is________________?
A. 0.3 H
B. 0.4 H
C. 0.5 H
D. 0.7 H - 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 )/(1 + sin )]_________________?
A. h = (W/Aw) [(1 –
B. h = (W/Aw) [(1 + )/(1 + sin )]
C. h = (W/Aw) [(1 – )/(1 + sin )]²
D. h W/Aw) [(1 – )/(1 + sin )]² - To have pressure wholly compressive under the base of a retaining wall of width b, the resultant of the weight of the wall and the pressure exerted by the retained, earth should have eccentricity not more than________________?
A. b/3
B. b/4
C. b/5
D. b/6 - The thickness of base slab of a retaining wall generally provided, is_____________?
A. One half of the width of the stem at the bottom
B. One -third of the width of the stem at the bottom
C. One fourth of the width of the steam at the bottom
D. Width of the stem at the bottom - A retaining wall and is the horizontal earth pressure, the factor of safety If is weight of against sliding, is_____________?
A. 1.0
B. 1.25
C. 1.5
D. 2.0 - 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 - 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. 51.5
B. 52.5
C. 53.5
D. 54.5 - The design of a retaining wall assumes that the retained earth________________?
A. Is dry
B. Is free from moisture
C. Is not cohesive
D. All the above
