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WorksheetsCivil war Day 6- 22/09/25 -PWD
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
The intensity of UDL which acts over a cantilever beam of span 2m and size 100mm × 200mm, which would produce maximum shear stress 1.5 N/mm² is
a)
20 kN/m
b)
10 kN/m
c)
25 kN/m
d)
36.6 kN/m
2.
The ratio of average shear stress to the maximum shear stress in a beam with a square cross-section is:
a)
1
b)
2/3
c)
3/2
d)
2
3.
Shear stress for a triangular section at neutral axis is
a)
8F/3bh
b)
3F/bh
c)
3F/2bh
d)
4F/3bh
4.
The power transmitted by a 50 mm diameter shaft at 120 rpm, subjected to a maximum shear stress of 60 N/mm² is nearly (take π² = 10)
a)
25.5 MW
b)
18.75 MW
c)
15.5 MW
d)
76 MW
5.
Two shafts having same length and material are joined in series and subjected to a torque 10 kNm. If ratio of their diameters are in ratio 2:1, the angle of twist will be in ratio
a)
16:1
b)
2:1
c)
1:2
d)
1:16
6.
A T section is subjected to shear force F. The maximum shear stress will occur at
a)
Top of the section
b)
Bottom of the section
c)
At neutral axis
d)
Middle of the beam
7.
The maximum shear stress in a solid shaft of 40 mm diameter is 5 N/mm². The value of torque is
a)
628 Nm
b)
63 Nm
c)
126 Nm
d)
251 Nm
8.
Pick up the incorrect statement. Torsional resistance is directly proportional to
a)
Modulus of rigidity
b)
Angle of twist
c)
Reciprocal of length of shaft
d)
Moment of inertia of section
9.
A simply supported beam of span L carries a concentrated load W at mid span. If the width b is kept constant, what is depth at any section for design stress σ?
a)
√(6WL/bσ)
b)
6WL/bσ
c)
√(3WL/2bσ)
d)
3WL/2bσ
10.
When a closely coiled helical spring is subjected to an axial load, the deflection of the spring is directly proportional to
a)
Modulus of rigidity of the spring material
b)
Diameter of the spring wire
c)
Diameter of the coil
d)
None of these
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