MHADA Exam RCC Structures Design Technical Question MCQ Mock Test 36

1➤ The advantage of a concrete pile over a timber pile, is

No decay due to termitesHigher bearing capacityNo restriction on length All the above

2➤ An R.C.C. roof slab is designed as a two way slab if

It supports live loads in both directionsThe ratio of spans in two directions is less than 2The slab is continuous over two supportsThe slab is discontinuous at edges

3➤ The amount of reinforcement for main bars in a slab, is based upon

Minimum bending momentMaximum bending momentMaximum shear forceMinimum shear force

4➤ The transverse reinforcements provided at right angles to the main reinforcement

Distribute the loadResist the shrinkage stressResist the temperature stressesAll the above

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

1.01.251.52.0

6➤ If p₁ and p₂ are mutually perpendicular principal stresses acting on a soil mass, the normal stress on any plane inclined at angle θ° to the principal plane carrying the principal stress p₁, is:

[(p₁ - p₂)/2] + [(p₁ + p₂)/2] cos 2θ[(p₁ - p₂)/2] + [(p₁ + p₂)/2] sin 2θ[(p₁ + p₂)/2] + [(p₁ - p₂)/2] sin 2θ[(p₁ + p₂)/2] + [(p₁ - p₂)/2] cos 2θ

7➤ The width of the rib of a T-beam, is generally kept between

1/3 to 2/3 of rib depth1/2 to 3/4 of rib depth1/3 to 1/2 of rib depth1/7 to 1/3 of rib depth

8➤ If ‘H’ is the overall height of a retaining wall retaining a surcharge, the width of the base slab usually provided, is

0.3H0.4H0.5H0.7H

9➤ The thickness of base slab of a retaining wall generally provided, is

One half of the width of the stem at the bottomOne fourth of the width of the steam at the bottomOne-third of the width of the stem at the bottomWidth of the stem at the bottom

10➤ Bottom bars under the columns are extended into the interior of the footing slab to a distance greater than

24 diameters from the centre of the column42 diameters from the outer edge of the column42 diameters from the centre of the column42 diameters from the inner edge of the column

11➤ If C is creep coefficient, f is original pre-stress in concrete, m is modular ratio, E is Young's modulus of steel and e is shrinkage strain, the combined effect of creep and shrinkage is:

(1 - C) mf - eE(C - 1) mf + eE(C - 1) mf - eE(1 - C) mf + eE

12➤ The percentage of minimum reinforcement of the gross sectional area in slabs, is

0.12%0.15%0.18%0.10%

13➤ If R and T are rise and tread of a stair spanning horizontally, the steps are supported by a wall on one side and by a stringer beam on the other side, the steps are designed as beams of width

R + TT - R√(R² + T²)R - T

14➤ If ‘W’ is the uniformly distributed load on a circular slab of radius ‘R’ fixed at its ends, the maximum positive radial moment at its centre, is

3WR²/162WR²/16WR²/16None of these

15➤ 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

51.552.553.554.5

16➤ The floor slab of a building is supported on reinforced cement floor beams. The ratio of the end and intermediate spans is kept

0.60.70.80.9

17➤ An R.C.C. column is treated as short column if its slenderness ratio is less than

30354050

18➤ A ribbed slab is provided for

A plain ceilingAcoustic insulationThermal insulationAll the above

19➤ The thickness of the topping of a ribbed slab, varies between

5 cm to 8 cm8 cm to 10 cm12 cm to 15 cm3 cm to 5 cm

20➤ The diameter of transverse reinforcement of columns should be equal to one-fourth of the diameter of the main steel rods but not less than

4 mm5 mm6 mm7 mm

Your score is