Structural Engineering - Online Test
Q1. A parabolic cable is held between two supports at the same level. The horizontal
span between the supports is L. The sag at the mid-span is h. The equation of
the parabola is 
where x is the horizontal coordinate and y is the
vertical coordinate with the origin at the centre of the cable. The expression for
the total length of the cable is
where x is the horizontal coordinate and y is the
vertical coordinate with the origin at the centre of the cable. The expression for
the total length of the cable is
Answer : Option D
Explaination / Solution:
No Explaination.
Q2. A double cover butt riveted joint is used to connect two flat of 200 mm width
and 14 mm thickness as shown in the figure. There are twelve power driven rivets
of 20 mm diameter at a pitch of 50 mm in both directions on either side of the
plate. Two cover plates of 10 mm thickness are used. The capacity of the joint in
tension considering bearing and shear ONLY, with permissible bearing and shear
stresses as 300 MPa and 100 MPa respectively is
Answer : Option B
Explaination / Solution:
No Explaination.
Q3. Two plates, subjected to direct ension, each of 10 mm thickness and having widths
of 100 mm and 175 mm, respectively are to be fillet welded with an overlap of
200 mm. Given that the permissible weld stress is 110 MPa and the permissible
stress in steel is 150 MPa, the length of the weld required using the maximum
permissible weld size as per IS : 800-1984 is
Answer : Option B
Explaination / Solution:
No Explaination.
Q4. For the simply supported beam of length L, subjected to a uniformly distributed
moment M kN-m per unit length as shown in the figure, the bending moment (in
kN-m) at the mid-span of the beam is
Answer : Option A
Explaination / Solution:
No Explaination.
Q5. A disc of radius r has a hole of radius r/2 cut-out as shown. The centroid of the
remaining disc (shaded portion) at a radial distance from the centre “O” is
Answer : Option C
Explaination / Solution:
No Explaination.
Q6. A three hinged parabolic arch having a span of m25 and a rise of m5 carries a
point load of 10 kN at quarter span from the left end as shown in the figure. The
resultant reaction at the left support and its inclination with the horizontal are
respectively
Answer : Option A
Explaination / Solution:
No Explaination.
Q7. The vertical stress at ppoint P1 due to the point load Q on the ground surface as
shown in figure is σz. According to Boussinesq’s equation, the vertical stress at
point P2 shown in figure will be
Answer : Option D
Explaination / Solution:
No Explaination.
Q8. The ultimate load capacity of a m10 long concrete pile of square cross section
500 × 500 mm driven into a homogeneous clay layer having undrained cohesion
value of 40 kPa is 700 kN. If the cross section of the pile is reduced to 250 × 2500 mm
and the length of the pile is increased to m20 , the ultimate load capacity will be
Answer : Option B
Explaination / Solution:
No Explaination.
Q9. A doubly reinforced rectangular concrete beam has a width of 300 mm and an effective
depth of 500 mm. The beam is reinforced with 2200 mm2 of steel in tension and
628 mm2 of steel in compression. the effective cover for compression steel is 50 mm.
Assume that both tension and compression steel yield. The grades of concrete and steel
used are M20 and Fe250, respectively. The stress block parameters (rounded off to first
two decimal places) for concrete shall be as per IS 456 : 2000
The depth of neutral axis is
Answer : Option C
Explaination / Solution:
No Explaination.
Q10. A doubly reinforced rectangular concrete beam has a width of 300 mm and an effective
depth of 500 mm. The beam is reinforced with 2200 mm2 of steel in tension and
628 mm2 of steel in compression. the effective cover for compression steel is 50 mm.
Assume that both tension and compression steel yield. The grades of concrete and steel
used are M20 and Fe250, respectively. The stress block parameters (rounded off to first
two decimal places) for concrete shall be as per IS 456 : 2000.
The moment of resistance of the section is
Answer : Option B
Explaination / Solution:
No Explaination.
