Civil Engineering - Online Test

Q1. Which of the flowing stress combinations are appropriate in identifying the critical condition for the design of concrete pavements ?
Type of stress                      Location
a. Load                                1. Corner 
b. Temperature                    2. Edge 
                                            3. Interior
Select the correct answer using the codes given below :
Answer : Option A
Explaination / Solution:
No Explaination.


Q2. The residue of the function   at z = 2 is
Answer : Option A
Explaination / Solution:




Q3. The modulus of rupture of concrete in terms of its characteristic cube compressive strength (fck) in MPa according to IS 456 : 2000 is
Answer : Option D
Explaination / Solution:
No Explaination.


Q4.
Consider the matrix  The value of eis
Answer : Option D
Explaination / Solution:



Q5. For limit state of collapse, the partial safety factors recommended by IS 456 : 2000 for estimating the design strength of concrete and reinforcing steel are respectively
Answer : Option C
Explaination / Solution:
No Explaination.


Q6. In the Taylor series expansion of exp(x) + sin(x) about the point x = π, the coefficient of (x-π)2 is
Answer : Option B
Explaination / Solution:



Q7. A rectangular concrete beam of width 120 mm and depth 200 mm is prestressed by pre tensioning to a force of 150 kN at an eccentricity of 20 mm. The crosssectional area of the prestressing steel is 87.5 mm2. Take modulus of elasticity of steel and concrete as 2.1 × 105 MPa 3.0 × 104 MPa respectively. The percentage loss of stress in the prestressing steel due to elastic deformation of concrete is
Answer : Option B
Explaination / Solution:
No Explaination.


Q8. Consider points P and Q in the x - y plane, with P = (1,0) and Q = (0,1). The line integral   along the semicircle with the line segment PQ as its diameter
Answer : Option B
Explaination / Solution:



Q9. A thin walled cylindrical pressure vessel having a radius of 0.5 m and wall thickness of 25 mm is subjected to an internal pressure of 700 kPa. The hoop stress developed is
Answer : Option A
Explaination / Solution:
No Explaination.


Q10. The order of the differential equation

Answer : Option B
Explaination / Solution:

The highest derivative terms present in DE is of 2nd order.