Q1.A 3 m long simply supported beam of uniform cross section is subjected to a uniformly
distributed load of w = 20 kN/m in the central 1 m as shown in the figure.
Q2.Two beams PQ (fixed at P and with a roller support at Q, as shown in Figure I, which
allows vertical movement) and XZ (with a hinge at Y) are shown in the Figures I and II
respectively. The spans of PQ and XZ are L and 2L respectively. Both the beams are
under the action of uniformly distributed load (W) and have the same flexural stiffness,
EI (where, E and I respectively denote modulus of elasticity and moment of inertia
about axis of bending). Let the maximum deflection and maximum rotation be δmax1 and θmax1, respectively, in the case of beam PQ and the corresponding quantities
for the beam XZ be δmax2 and θmax2, respectively.
Which one of the following
relationships is true?
Answer : Option DExplaination / Solution: No Explaination.
Q3. A plane truss with applied loads is shown
in the figure.
The members which do not carry any force are
Answer : Option AExplaination / Solution:
Conditions for zero force members are
(i) The member meets at a joint and they are non-collinear and no external force acts at that joint. Both the members will be the zero force members.
(ii) When the members meet at joint and two are collinear and no external force acts at the joint then third member will be zero force member.
According to the above statements
We can say that FT, TG, HU, MP and PL members are zero force members.
Q4. A rigid member ACB is shown in the figure. The member is supported at A and B by
pinned and guided roller supports, respectively. A force P acts at C as shown. Let RAh and RBh be the horizontal reactions at supports A and B, respectively, and RAv be the
vertical reaction at support A. Self- weight of the member may be ignored. Which one of the following sets gives the correct magnitudes of RAv, RBh and RAh?
Answer : Option DExplaination / Solution: No Explaination.
Q5.A reinforced concrete (RC) beam with width of 250 mm and effective depth of 400
mm is reinforced with Fe415 steel. As per the provisions of IS 456-2000, the minimum
and maximum amount of tensile reinforcement (expressed in mm2) for the section are,
respectively
Q6. A propped cantilever of span L carries a vertical concentrated load at the mid-span. If
the plastic moment capacity of the section is MP, the magnitude of the collapse load is
Q7.Two plates are connected by fillet welds of size 10 mm and subjected to tension, as shown
in the figure. The thickness of each plate is 12 mm. The yield stress and the ultimate
tensile stress of steel are 250 MPa and 410 MPa, respectively. The welding is done in the
workshop (γmw = 1.25).
As per the Limit State Method of IS 800: 2007, the minimum length (rounded off to
the nearest higher multiple of 5 mm) of each weld to transmit a force P equal to 270
kN (factored) is
Answer : Option BExplaination / Solution:
Maximum force carried by plates,
Q8.A homogeneous gravity retaining wall supporting a cohesionless backfill is shown in the
figure. The lateral active earth pressure at the bottom of the wall is 40 kPa.
The minimum weight of the wall (expressed in kN per m length) required to prevent it
from overturning about its toe (Point P) is
Q9.Indian currency notes show the denomination indicated in at least seventeen languages.
If this is not an indication of the nation‟s diversity, nothing else is.
Which of the following can be logically inferred from the above sentences?
Answer : Option DExplaination / Solution: No Explaination.