APSC AE CE Paper 1 Mock Test - 4 - Civil Engineering (CE) MCQ

If the area of tension reinforcement provided is greater than required for a balanced reaction, then the RCC beam is called over-reinforced.

Shrinkage ratio- It is defined as the ratio of a given volume change in a soil expressed as a percentage of dry volume to the corresponding change in water content above the shrinkage limit.

Consistency index

Porosity- The ratio of the volume of voids to the total volume of the soil mass, i.e. (n=V_v/V)

Voids ratio - The ratio of the volume of holes to the volume of the solids., i.e., e = V_v/V_s

Gypsum acts as a retarder. It counteracts the fast rate of hydration (for which C₃A is primarily responsible) to prevent flash set.

Local shear failure occurs in case of loose sand and soft clays where large settlement may occur below the foundation before soil reaches to plastic state.

Hence the option B is correct.

(=100×100×1/A×200×10⁹(m))

(A=π/4(d²)=π/4×(10×10⁻³)²m²)

(=7.85×10⁻⁵m²)

( Elongation =10×1000×1/7.85×10⁻⁵×200×10⁹)

(=6.369×10⁻⁴m)(=0.64nm)

Hence the option C is correct.

Hence the option A is correct.

Hence the option C is correct.

Steel 0.25-1.5

Hence Ductility maximum in Wrought iron.

Hence the option C is correct.

It is that portion of the slab that acts integrally with the beam and extends on either side of the beam forming the compression zone. The effective width of the flange mainly depends upon the span of beams, the thickness of the slab, and the breadth of the web. It also depends upon the type of loads and support conditions.

The effective width of the flange should not be greater than the breadth of the web plus half the sum of clear distances to the adjacent beams on either side.

Hence the correct answer is option B.

reaction time t = 0.8 sec

length of vehicles L = 5 m

space s = 0.278 Vt + L

= 0.278 x 45 x 0.8 + 5

= 10.008 + 5

= 15.008 m

theoretical capacity C = 1000V/S

= 2998.4

= 2998(say)

So theoretical capacity C = 2998 vehicles/hour/lane

Hence the correct answer is option B.

To measure the discharge over the broad-crested weir, two heads (i.e., H and h) need to be measured. However, experiments have shown that the flow adjusts itself to have maximum discharge for the available head. The downstream head over the weir can be computed mathematically by differentiating equation (1) with respect to and equating it to zero i.e.

This value of h is known as depth of flow.

Hence the correct answer is option B.

Hence the correct answer is option B.

1. Hydrostatic pressure

2. Dynamic pressure

3. Velocity

4. Stagnation pressure

Oxidation ponds have a long detention period between 10 to 15 days. Explanation: The BOD removal efficiency of an oxidation pond lies between 80% and 90%, so the maximum BOD removal efficiency is 90%.

Hence, the correct option is (C)

Maximum deflection = Ax/EI = 0.0075 × 1.33

y = 9.975 mm.

Hence, the correct option is (A)

Examples of Deciduous trees are

Oak, Sal, Teak, Babul, Mahogany, Shishum, etc.

Examples of coniferous trees are

Chir, Deodar, Pine, Spruce, Kail (Botanical name - Pinus wallichiana), etc

Wood obtained from coniferous trees is soft, lightweight, weak, and resinous. Hence is of limited engineering application.

Wood obtained from deciduous trees are complex, substantial, heavyweight, and not resinous. Hence it is suitable for engineering applications.

• Workability of concrete is the property of freshly mixed concrete which determines the ease and homogeneity with which it can be mixed, placed, consolidated, and finished

• Water cement ratio has many effects on workability. Workability is directly proportional to the water-cement ratio. An increase in the water-cement ratio increases the workability of concrete

• If the Surface area for the given cement and aggregates is more, we require more amount of water for the required workability and vice versa

• Bigger size aggregates require less amount of water for wetting surface, requires less amount of paste for lubricating the surface

• Grading of aggregate has the maximum influence on workability. The better the grading, the less is the amount of void in it

• When the total void is less, an excess paste is available to give a better lubricating effect

• With an excess amount of paste, the mixture becomes cohesive and fatty which prevents segregation of particles & least amount of compacting efforts is required to compact the concrete