Related Questions

If C is creep coefficient, f is original pre-stress in concrete, m is modular ratio, E is Young's modulus of steel and e is shrinkage strain, the combined effect of creep and shrinkage is:
A (1 - C) mf - eE
B (C - 1) mf + eE
C (C - 1) mf - eE
D (1 - C) mf + eE
Shrinkage allowance on pattern is provided to compensate for shrinkage when
A The temperature of liquid metal drops from pouring to freezing temperature
B The metal changes from liquid to solid state at freezing temperature
C The temperature of solid phase drops from freezing to room temperature
D The temperature of metal drops from pouring to room temperature
Shrinkage allowance on pattern is provided to compensate for shrinkage when the
A Metal changes from liquid state to solid state at freezing temperature
B Solid phase temperature drops from freezing temperature to the room temperature
C Liquid metal temperature drops from pouring temperature to room temperature
D Liquid metal temperature drops from pouring temperature to freezing temperature
Every direct stress is always accompanied by a strain in its own direction and an opposite kind of strain in every direction, at right angles to it. Such a strain is known as
A Linear strain
B Lateral strain
C Volumetric strain
D Shear strain
A cylinderical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is
A 0
B 0.33
C 0.44
D 0.25
For the supply of materials for concrete, form work reinforcing and placing of concrete, removal of form work and curing of concrete, number of bar(s) required on bar chart, is
A 1
B 2
C 3
D 4
In symmetrically reinforced sections, shrinkage stresses in concrete and steel are respectively
A Compressive and tensile
B Tensile and compressive
C Both compressive
D Both tensile
The ratio of the lateral strain to the linear strain is called
A Modulus of elasticity
B Modulus of rigidity
C Bulk modulus
D Poisson's ratio
The ratio of lateral strain to axial strain of a homogeneous material, is known
A Yield ratio
B Hooke’s ratio
C Poisson’s ratio
D Plastic ratio
The ratio of lateral strain to the linear strain within elastic limit is known as
A Young's modulus
B Bulk modulus
C Modulus of rigidity
D Poisson's ratio

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