Structural Engineering - Online Test
Q1. Consider a simply supported beam with a uniformly distributed load having a neutral axis (NA) as shown. For points P (on the neutral axis) and Q (at the bottom of the beam) the state of stress is best represented by which of the following pairs?
Answer : Option A
Explaination / Solution:
No Explaination.
Q2. Likelihood of general shear failure for an isolated footing in sand decreases with
Answer : Option B
Explaination / Solution:
No Explaination.
Q3. Two geometrically identical isolated footings, X (linear elastic) and Y (rigid), are loaded identically (shown alongside). The soil reactions will
Answer : Option A
Explaination / Solution:
No Explaination.
Q4. Beam subjected to moving distributed load of 4 kN/m maximum shear force that
can occur just to right of Q is
Answer : Option C
Explaination / Solution:
When a cut is made just to the right of Q and displacements are given such that
A’B’ is parallel to B’C’, as B’ is very close to Q, displacement of B’ to the left will
be zero and that to the right will be 1.
Hence slope of B'C' = 1/20 ⇒ Slope of B'A ' = (1/20)×5 = 0.25
ordinate at A ' = (1/20)×5 = 0.25; ordinate at D' = (1/20)×5 = 0.25
If udl is loading span PR, we get maximum SF just to the right of Q
⇒ SF = ((1/2)×0.25×10+(1/2)×20×1)×4 = 45 kN
Q5. Two people weighing W each are sittingon a plank of length L floating on water
at L/4 from either end. Neglecting the weight of he plank, the bending moment
at the centre of the plank is
Answer : Option D
Explaination / Solution:
No Explaination.
Q6. For the truss shown in the figure, the force in the member QR is
Answer : Option C
Explaination / Solution:
No Explaination.
Q7. The major and minor principal stresses at a point are 3 MPa and -3 MPa
respectively. The maximum shear stress at the point is
Answer : Option B
Explaination / Solution:
No Explaination.
Q8. The effective length of a column of length L fixed against rotation and translation
at one end and free at the other end is
Answer : Option D
Explaination / Solution:
No Explaination.
Q9. As per Indian standard code of practice for prestressed concrete (IS : 1343 - 1980)
the minimum grades of concrete to be used for post-tensioned and pre-tensioned
strural elements are respectively
Answer : Option D
Explaination / Solution:
No Explaination.
Q10. A solid circular shaft of diameter d and length L is fixed at one end free at
the other end. Atorque T is applied at the free end. The shear modulus of the
material is G. The angle of twist at the free end is
Answer : Option B
Explaination / Solution:
No Explaination.
