APSC JE CE Paper 2 Mock Test - 2 - Civil Engineering (CE) MCQ

• Shear strength of cohesionless soils is only developed with the presence of effective stress.

• Shear strength increases with increasing effective stress.

• The increase of shear strength of cohesionless soil depends upon the internal friction angles of the soil.

• The type of soil most susceptible to liquefaction is one in which the resistance to deformation is mobilized by friction between particles. If other factors such as grain shape, uniformity coefficient, and relative density are equal, the frictional resistance of cohesion less soil decreases as the grain size of soils becomes smaller.

Hence the correct answer is option C.

During sudden closure of valve, a wave of high pressure intensity will be produced in the water, due to this high pressure circumferential and longitudinal stresses will be produced.

The pattern is as follows,
1984 is the reverse of 4891
Similarly, 2874 is the reverse of 4782.
Hence the required pair is 2874 : 4782.

Hence the option D is correct.

Section modulus, (Z=1/Y_max)

where (I=bd³/12)&(y_max=d/2)

Now

(Z=(bd³/12)/(d/2)=bd²/6)

Hence the option B is correct.

Hence the option D is correct.

Hence the option D is correct.

and Sludge Age

Hence the correct answer is option B.

Hence the correct answer is option C

A diagonal member of a roof principal, usually forming part of a truss and supporting the purlins on which the common rafters rest.

Hence the correct answer is option C.

Hence the correct answer is option B.

The relationship between Young's modulus, E, shear modulus, G, and Poisson's ratio, v, is given by

Hence the correct answer is option A.

Hence the correct answer is option A.

(a)NIL – When there is no perceptible deposit of efflorescence.

(b)SLIGHT- Not more than 10% area of the brick covered with a thin deposit of salt.

(c)MODERATE- Covering up to 50% area of the brick.

(d)HEAVY- Covering 50% or more but unaccompanied by powdering or flaking of the brick surface.

(e)SERIOUS- When there is a heavy deposit of salts accompanied by powdering and/or flacking of the exposed surfaces.

Hence, the correct option is (B)

A technique for the calculation of slope stability based upon the assumption of a plane

surface of failure through the toe of the slope has been proposed by Culmann. This slope stability analysis method is not widely used since it has been found that plane surfaces of sliding are observed only with very steep slopes, and for relatively flat slopes, the surfaces of sliding are almost always curved.

Hence, the correct option is (C)

Bow: Curvature of wood in the direction of its length is known as Bow.

Cup: Curvature in the transverse direction of timber is known as a cup.

Twist: It is the spiral distortion in the direction of timber.

Spring: Curvature of the timber in its plane

Note: While Upsets and Rind galls are the defects that arise due to natural forces.

(a) NIL – When there is no perceptible deposit of efflorescence.

(b) SLIGHT- Not more than 10% area of the brick covered with a thin deposit of salt.

(c) MODERATE- Covering up to 50% area of the brick.

(d) HEAVY- Covering 50% or more but unaccompanied by powdering or flaking the brick surface.

(e) SERIOUS- When there is a heavy deposit of salts accompanied by powdering and flaking of the exposed surfaces.

• Algae are important sources of dissolved oxygen in a water impoundment and constitute the basic building blocks of the aquatic food chain

• They cause water quality problems only when they proliferate so much that they upset the ecological balance

• Copper sulfate is frequently used for algal control, and sometimes it is applied on a routine basis during summer months, whether or not it is actually needed

Note: Alum is used as a coagulant in the coagulation process.

Therefore,

Number of plastic hinges = Degree of indeterminacy + 1

Number of plastic hinges = 2 + 1 = 3

• More will be the cement-aggregate ratio, more will be the durability of concrete

• The durability of concrete is inversely proportional to the water-cement ratio