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WorksheetsCivil war sep 25 PWD
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Rankine's theory of columns considers
a)
Both buckling and crushing
b)
Only buckling
c)
Only crushing
d)
Neither buckling nor crushing
2.
Effective length of two ends fixed column is
a)
2L
b)
L/2
c)
L/4
d)
L/3
3.
If the diameter of a long column is reduced by 20%, then the percentage reduction in the Euler's crippling load will be
a)
4
b)
36
c)
41
d)
59
4.
Ties are load carrying members of a frame which are subjected to :
a)
Transverse load
b)
Axial tension load
c)
Axial compression load
d)
Torsion load
5.
A column with one end fixed and other end is free is capable to carry safely a load 'P', the same column when both ends hinged can carry the maximum load of
a)
4P
b)
2P
c)
8P
d)
P
6.
Hoop stress in a thin cylindrical pressure vessel is 10 MPa. The maximum shear stress in the cylinder is
a)
5 MPa
b)
10 MPa
c)
20 MPa
d)
2.5 MPa
7.
The ratio of hoop stress to longitudinal stress for a thin cylindrical pressure vessel subjected to internal fluid pressure is
a)
0.5
b)
0.25
c)
2
d)
1
8.
Calculate the axial stress induced in the pipe of water main of 1.5 m diameter and 20 mm thick subjected to an internal pressure of 1.5 N/mm².
a)
28.125 N/mm²
b)
35.675 N/mm²
c)
46.785 N/mm²
d)
67.845 N/mm²
9.
Which stress is the least in a thin shell
a)
Longitudinal stress
b)
Hoop stress
c)
Radial stress
d)
None
10.
When a column is hinged at both ends, the corresponding Euler's critical load is (Where L is the length of the column.)
a)
π²EI/L²
b)
2π²EI/L²
c)
3π²EI/L²
d)
4π²EI/L²
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