A steel rod of sectional area 250 sq. mm connects two parallel walls 5 m apart. The nuts at the ends were tightened when the rod was heated to 100°C. If steel = 0.000012/C°, Esteel = 0.2 MN/mm², the tensile force developed at a temperature of 50°C, is

Theory of Structures
A steel rod of sectional area 250 sq. mm connects two parallel walls 5 m apart. The nuts at the ends were tightened when the rod was heated to 100°C. If steel = 0.000012/C°, Esteel = 0.2 MN/mm², the tensile force developed at a temperature of 50°C, is

80 N/mm²

150 N/mm²

120 N/mm²

100 N/mm 2

80 N/mm²

150 N/mm²

120 N/mm²

100 N/mm 2

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Theory of Structures
Slenderness ratio of a long column, is

Area of cross-section divided by radius of gyration

Length of column divided by least radius of gyration

Radius of gyration divided by area of cross-section

Area of cross-section divided by least radius of gyration

Area of cross-section divided by radius of gyration

Length of column divided by least radius of gyration

Radius of gyration divided by area of cross-section

Area of cross-section divided by least radius of gyration

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Theory of Structures
The stiffness of the close coil helical spring is

8D3N/d4n

4D3N/d4n

d4N/8D3n

d4N/4D3n

8D3N/d4n

4D3N/d4n

d4N/8D3n

d4N/4D3n

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Theory of Structures
Pick up the incorrect statement from the following: The torsional resistance of a shaft is directly proportional to

Angle of twist

Moment of inertia of the shaft section

Modulus of rigidity

Reciprocal of the length of the shaft

Angle of twist

Moment of inertia of the shaft section

Modulus of rigidity

Reciprocal of the length of the shaft

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Theory of Structures
Stress may be expressed in Newtons

Per metre square (N/m2)

Per millimetre square (N/mm²)

None of these

Per centimetre square (N/cm²)

Per metre square (N/m2)

Per millimetre square (N/mm²)

None of these

Per centimetre square (N/cm²)

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Theory of Structures
Maximum shear stress theory for the failure of a material at the elastic limit, is known

Guest's or Trecas' theory

St. Venant's theory

Rankine's theory

Haig's theory

Guest's or Trecas' theory

St. Venant's theory

Rankine's theory

Haig's theory

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Theory of Structures

Theory of Structures A steel rod of sectional area 250 sq. mm connects two parallel walls 5 m apart. The nuts at the ends were tightened when the rod was heated to 100°C. If steel = 0.000012/C°, Esteel = 0.2 MN/mm², the tensile force developed at a temperature of 50°C, is

Theory of Structures Slenderness ratio of a long column, is

Theory of Structures The stiffness of the close coil helical spring is

Theory of Structures Pick up the incorrect statement from the following: The torsional resistance of a shaft is directly proportional to

Theory of Structures Stress may be expressed in Newtons

Theory of Structures Maximum shear stress theory for the failure of a material at the elastic limit, is known

Theory of Structures
A steel rod of sectional area 250 sq. mm connects two parallel walls 5 m apart. The nuts at the ends were tightened when the rod was heated to 100°C. If steel = 0.000012/C°, Esteel = 0.2 MN/mm², the tensile force developed at a temperature of 50°C, is

Theory of Structures
Slenderness ratio of a long column, is

Theory of Structures
The stiffness of the close coil helical spring is

Theory of Structures
Pick up the incorrect statement from the following: The torsional resistance of a shaft is directly proportional to

Theory of Structures
Stress may be expressed in Newtons

Theory of Structures
Maximum shear stress theory for the failure of a material at the elastic limit, is known