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WorksheetsCivilwar-Day 24-PWD-Limit state design
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
The moment of resistance of a balanced reinforced section is obtained by multiplying the lever arm with:
a)
Compressive force
b)
Tensile force
c)
Either compressive force or tensile force
d)
Compressive force or tensile force both
2.
In an under-reinforced section of RCC beams, the depth of actual neutral axis is
a)
equal to the depth of critical neutral axis
b)
less than the depth of critical neutral axis
c)
more than the depth of critical neutral axis
d)
None of the above
3.
Partial safety factor for loads for the combination of Dead load + Live load ± Wind/Earthquake load is:
a)
3
b)
1
c)
1.5
d)
1.2
4.
As per IS 456:2000, the maximum spacing of side face reinforcement bars is
a)
300 mm
b)
450 mm
c)
250 mm
d)
500 mm
5.
In the limit state of collapse, the partial safety factor for concrete (γm) is
a)
1.15
b)
1.5
c)
2
d)
1.67
6.
For spans up to 10 m, the basic span-to-effective depth ratio for a cantilever beam is
a)
7
b)
20
c)
23
d)
26
7.
The proof strain on the stress–strain curve is taken as
a)
0.0035
b)
0.003
c)
0.002
d)
None of these
8.
The limiting value of neutral axis depth for Fe415 steel (Es = 2.1×105 N/mm²) is
a)
0.48 d
b)
0.456 d
c)
0.452 d
d)
0.45 d
9.
What is the adoptable maximum spacing between vertical stirrups in an RCC beam of rectangular cross-section having an effective depth of 300 mm?
a)
300 mm
b)
275 mm
c)
250 mm
d)
225 mm
10.
A RC beam is subjected to: DL = 20 kN·m, LL = 30 kN·m, Seismic = 10 kN·m. The design bending moment for limit state of collapse is:
a)
90 kN·m
b)
75 kN·m
c)
72 kN·m
d)
45 kN·m
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