Approximate horse power that can be transmitted by a shaft 60 mm dimeter at 180 rpm with permissible shear stress of 850 kg/cm2 would be
A.30 – 35
B.35 – 50
C.50 – 60
D.60 – 85
E.85 – 95
Category: Strength Of Materials Mcqs
A spherical pressure vessel is made of thin magnesium plate 0.25 cm thick. The main diameter of the sphere is 600 cm and allowable stress in tension is 900 kg/cm2. The safe internal gas pressure for the vessel would be
A.0.5 kg/cm2
B.1.5 kg/cm2
C.3.0 kg/cm2
D.4.77 kg/cm2
E.5.5 kg/cm2
For beam of length L fixed at two ends A and B and loaded W at the centre C the maximum bending moment will
A.Occur at A
B.Occur at B
C.Occur at C
D.(A) and (B) above
E.(A) (B) and (C) above
A tower subjected to load W has self-weight 2W. It is to be designed for constant compressive stress at all sections. The cross-section of the tower should have
A.Tapering section
B.Circular section
C.Parabolic section
D.Hyperbolic section
E.None of the above
Secondary stresses may be set up in a frame due to any of the following reasons EXCEPT
A.rigidity of the members
B.ecentricity of connections
C.self-weight of the members
D.members not being straight
The light gauge steel structural members are usually
A.hot rolled
B.cold rolled
C.casted
D.riveted
When a strip made of iron and copper is heated
A.it does not bend
B.it gets twisted
C.it bends with iron on concave side
D.it bends with iron on convex side
Identify the incorrect statement about true stress-strain method
A.There is no such phenomenon like true stress or true strain
B.True stress is load per unit area (actual) and sunilarly true strain is determined under actual conditions
C.This method can be used for compression tests as well
D.It is more sensitive to changes in mechanical conditions
E.It is more sensitive to changes in metallurgical conditions
If a column fails due to buckling, it is likely to be a
A.Long column
B.Short column
C.Strut
D.Reinforced column
E.None of the above
The maximum strains at the end of plastic range of structural steel is about
A.0.11 percent
B.1.5 percent
C.11 percent
D.15 percent
