APSC JE CE Paper 2 Mock Test - 8 - Civil Engineering (CE) MCQ

(ii) Characteristics strength of reinforcing steel, f_y=415N/mm²

(iii) Width, b=250mm

(iv) Effective depth, d=317mm

(v) Neutral axis factor, x_ub/d

=ϵ_c/ϵ_c+ϵ_s

=0.0035/0.0035+0.0038

=0.48

(vi) Coefficient, Qub

=k₁(x_ub/d)(1−k₂(x_ub/d))

=0.36×0.48×(1−0.42×0.48)

=0.138

(vii) Moment of resistance due to concrete,

M_uab =Q_ubf_ckbd²

=0.138×20×250×317²

=69.395kNm

Hence, the correct option is (c).

And nominal brick size = modular brick +mortar =20×10×10 cm.

(i_c= G−1/1+e)

Where,

G= Specific gravity and e= void ratio

Hence on increasing the void ratio, the critical hydraulic gradient will decrease.

Back Sight: The first staff reading taken by the surveyor after the levelling instrument is set up and levelled. B.S is generally taken on the point of known reduced level as on the benchmark or a change point.

Fore sight (FS): The last staff reading taken before changing the instrument to the other position. It is the staff reading taken on point whose RL is to determined. This sight is considered as negative and deduced from Height of Instrument to determine RL of the point.

Intermediate sight: All readings taken between back sight and fore sight. These are the points whose RL is determined by the method already mentioned above in FS.  

(→) Workability of concrete

(→) Strength of concrete

(→) Durability of concrete

( → ) Handing and placing of concrete

Initial setting of Portland cement is due to the tricalcium aluminate. Tricalcium aluminate hydrates quickly, generates much heat and makes only small contribution to the strength within the first 24 hours. Among all the elements, the aluminate generates the maximum heat. Due to this, tricalcium aluminate is responsible for most of.the undesirable properties of concrete.

here M=O, here

Hence the option A is correct.

Partial safety factor for steel = 1.15

Hence the option A is correct.

Hence the option C is correct.

The lap length in compression shall be equal to the development length in compression, but not less than 24(ϕ).

Hence the option C is correct.

Hence the correct answer is option A.

Here, 16× 20 = 320 mm,

Therefore pitch = 200 mm

Hence the correct answer is option C.

Hence the correct answer is option A.

Hence the correct answer is option A.

Hence the correct answer is option C.

Hence correct answer is option A.

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

Hence, the correct option is (D)

Backsight (BS) – short for "backsight reading", the first staff reading taken by the surveyor after the levelling instrument is set up and levelled. B.S is generally taken on the point of known reduced level as on the benchmark or a change point.

Hence, the correct option is (A)

Hence, the correct option is (B)

Hence, the correct option is (C)

The age of the timbers is determined by “Annual Rings.”

Sapwood →is the outer annual ring between heartwood and cambium layers.

Pith → innermost central portion or core of the tree.

Heavyweight concrete uses heavy natural aggregates such as barites or magnetite or manufactured aggregates such as iron or lead shot.

Volcanic Scoria is a lightweight aggregate that may be used in interior slabs to reduce weight.

The vertical deflection limits may be assumed to be satisfied provided that the span to effective depth ratio should not exceed the basic values tabulated below, for span less than or equal to 10 m.