APSC AE CE Paper 1 Mock Test - 6 - Civil Engineering (CE) MCQ

Poisson’s ratio of concrete is the ratio of transverse strain to longitudinal strain in a concrete specimen subjected to axial loads. The longitudinal strain and vertical strain are produced due to concrete volume reduction under compression load. Volume reduction of the concrete specimens is the result of crushing small aggregate sizes due to exerted loads. Poisson’s ratio of concrete is a constant for determining the stress and deflection properties of structures such as beams, plates, and shells

And white lead for wooden surfaces.

G= Specific gravity

e= void ratio

(K_a=1−sin⁡θ/1+sin⁡θ)

(=tan^2⁡(45−θ/2))

Where (θ)= angle of internal friction.

In volume batching of concrete boxes of size:  300 X 380 X 380 are used

Thorns are derived from leaves of cactus. Similarly, Wool is derived from hair of Sheep.

A rain hyetograph is curve showing intensity of rainfall with time and curve showing mean depth with area is depth area duration.

For doubly reinforced section, tension reinforcement is designed for stress of 0.87fy but for compression reinforcement a lower stress must be used. The reason being that steel may buckle between shear stirrups under compressive stresses. And hence doubly reinforced beam is considered less economical because compressive steel is under stressed.

The lap length is equal to the development length calculated in compression but not less than 24d.

Hydraulic radius is the characteristic length commonly used in defining the Reynolds number.

Hence the option C is correct.

Hence the option B is correct.

((C₃A)=3CaO⋅Al₂O₃)

It contains 5-11% of cement.

it rapidly reacts with water

The high heat of hydration

Responsible for flash set

Hence the option A is correct.

Hence the option D is correct.

Hence the option C is correct.

Hence the correct answer is option B.

here (γ=w and K_a=1−sin⁡ϕ/1+sin⁡ϕ)

Hence the correct answer is option C.

t_max is inversely proportional to (D³)

A systematic error always follows some definite mathematical or physical law and a correction can be determined and applied.

Such errors are of constant character and are regarded as positive or negative according to as they make the result too great or too small.

Blunders: A blunder (or gross error) is a significant, unpredictable mistake caused by human error that often leads to large discrepancies.

Blunders are typically the result of carelessness, miscommunication, fatigue, or poor judgment. Examples of common blunders are:

i) Improperly leveling of the surveying instrument.

ii) Setting up the instrument or target over the wrong control point.

Random (or accidental) errors are not directly related to the conditions or circumstances of the observation.

For a single measurement or a series of measurements, the error remains after all possible systematic errors and blunders have been eliminated.

Random errors are unpredictable and are often caused by factors beyond the control of the surveyor. Their occurrence, magnitude, and direction (positive or negative) cannot be predicted.