APSC AE CE Paper 1 Mock Test - 7 Free Online Test 2026

For a column fixed at both ends, the effective length Leff=0.5LL_{eff} = 0.5LLeff​=0.5L, where LLL is the actual length of the column.

So, the effective slenderness ratio is:

Therefore, the correct answer is:

Option C: 0.5L/r

C = (V²/R). (1/t)

Where t= time taken to travel the transition curve of length L_s, with a speed of V

t = L_s/V

C = (V^2/R). (V/L_s)

L_s = (V³/CR)

Bitumen adheres well to all normal types of road aggregates provided they are dry and free from dust. In the absence of water, there is practically no adhesion problem of bituminous construction. Adhesion problem occurs when the aggregate is wet and cold. This problem can be dealt with by removing moisture from the aggregate by drying and increasing the mixing temperature. Further, the presence of water causes stripping of binder from the coated aggregates. These problems occur when the bitumen mixture is permeable to water. 

IRC has specified the maximum value of stripping value of aggregate not to exceed 5%.

Both moments are equal; therefore, the maximum deflection will be at centre, deflection at centre

In intersection method of plane table surveying, the objects or points to be located are obtain at the point of intersection of radial lines drawn from two different stations. The intersection method is suitable when distances of objects are large or cannot be measured properly. Thus, this method is preferred in small scale survey and for mountainous regions.

The distribution system in water supply is designed for the maximum of (i) peak hourly demand and (ii) Coincidental draft, which is the summation of fire demand and peak daily demand.

Cross staff is used for setting out right angle.

Hence the option B is correct.

Hence the option B is correct.

The concrete mix that causes difficulty obtaining a smooth finish is known to possess hardness.

Hence the option C is correct.

where μ = Poisson’s Ratio

Hence, the correct option is (B).

Hence the option B is correct.

Critical Velocity

Critical Velocity is the maximum velocity of a fluid, above which, the streamline flow get the change to turbulent flow.

• Lower critical Velocity
  (i) It is the velocity at which the laminar flow stops.
  (ii) In this, the flow enters from laminar to transition period which exists between the laminar and turbulent flow.
• Upper Critical velocity
  (i) It is the velocity at which the turbulent flow starts.
  (ii) In this, the flow enters from the transition period to turbulent flow.

Hence the correct answer is option C.

The plane on which normal stress attains its maximum and minimum values are called principal planes. The shear stress on the principal plane is zero.

The planes of maximum and minimum normal stresses are at an angle of 90° to each other.

Planes of maximum stress occur at 45° to the principal planes.

Hence the correct answer is option C.

Excessive floor vibration can render a structure to be of little or no use

Hence the correct answer is option C.

Hence, the correct option is (D)

Hence, the correct option is (B)

• Coffer Dham is a temporary structure constructed in a river, lake, etc for excluding water from a given site (where the construction is to start) to enable the building operation to be performed on a dry surface.

• It may be made of earth materials, timber or steel sheet piling, or a combination of these.

• A cofferdam is neither a type of foundation nor a permanent structure to store water.

Δl = 0.03 mm E = 2 × 10⁵ N/mm²