V-notch in a test specimen is prepared for which of the following testing methods?

____________ use a diamond cone or hard steel ball to carry out hardness tests to HRB or HRC scales.

The materials which exhibit uniform elastic properties in all direction is termed _

The Brinell hardness number for mild steel is about-

In a tension test, fracture takes place along a crystallographic plane, on which the normal tensile stress is maximum. Such plane is called

Following test is also known as microhardness test

What is the slot angle of the izod impact test specimen?

Hardenability of steel is assessed by:

The Rockwell test for hardness employs _____________as an indenter.

Temperature depended ductile-to-brittle transition can be determined by -

A thin mild steel wire is loaded by adding loads in equal increments till it breaks. The extensions noted with increasing loads will behave as under:-

The Brinell hardness is calculated by : (Where P is load in N, D is steel ball diameter and d is indentation diameter in millimetres.)

A specimen made of ductile material subjected to tensile stress has maximum shear stress on a plane inclined with an axis is

The fundamental property of material able to resist abrasion is called as

Tensile test performed on Universal Testing Machine (UTM) actually measures

In Rockwell hardness testing method, the hardness of a material is measured by-

The ability of the material to absorb energy before fracture is known as:

An object deformed by applying force. Energy stored in the material during deformation is known as:

Area under the stress-strain curve when load is gradually applied in tension represents the

Strain energy stored in a prismatic bar suspended from one end due to its own weight (elastic behavior) [x = specific weight of material, A = cross-sectional area, L = length of bar]

Define strain energy.

A bar of length L and cross section A is subjected to axial forces P at ends. The energy stored in the bar will be.

The relationship between modulus of resilience (R).Young's modulus of Rigidity (E) and stress induced in the body (ơ) is:

Which of the following options CORRECTLY define Proof resilience?

Strain energy stored in cantilever beam loaded as shown will be

σ₁, σ₂, σ₃ are the three mutually perpendicular principal stresses with ε₁,ε₂ , and ε₃ being the strains produced in the respective directions of the stress, the strain energy stored per unit volume in a cube is

For the state of stress of pure shear t, the strain energy stored per unit volume in the elastic, homogeneous, isotropic material having elastic constants - Young's modulus, E and Poisson's ratio v will be

What will be the strain energy stored in the metallic bar of cross sectional area of 2 cm and gauge length of 10 cm if it stretches 0.002 cm under the load of 12 kN?

The strain energy stored in a body due to suddenly applied load compared to when it is applied gradually is

Maximum energy that a given component can absorb without undergoing any permanent deformation upto elastic limit is known as:

When a structural member is strained due to external imposed loads, the energy stored is called -

A cold-rolled steel shaft is designed on the basis of the maximum shear stress theory. The Principal stresses induced at its critical section are 50 MPa and -50 MPa respectively. If the yield stress for the shaft material is 400 MPa, the factor of safety of the design is

Guest theory is

The distortion energy theory is based on the work of

From Rankine's hypothesis Rankine, criteria for failure of brittle material is:

Consider the following statements :Which of the statements is/are correct?

1. Based on the experiment results, the distortion energy theory predicts the failure of a component made of ductile material most accurately.
2. According to the distortion energy theory, the shear yield strength is less than the shear strength in tension.

The maximum shear stress theory predicts that the yield strength in shear is the yield strength in tension.

Select the odd one.

The maximum permissible twisting moment in a circular shaft, according to the maximum shear stress theory of failure, is 'T'. According to the maximum principal stress theory of failure, the permissible twisting moment for the same shaft is:

The centre of the 'Mohr's circle' for a two-dimensional stress system lies

For proper design of a shaft, it should be designed on the basis of

St. Venant proposed the - theory.

Guest's theory of failure is applicable for following type of materials

According to Tresca's maximum shear stress criterion, plastic deformation occurs when maximum shear stress is equal to K, where K is equal to:(where σ₁, σ₂, σ₃ are principal stresses and also σ₁ ≥ σ₂ ≥ σ₃)

At a point in a structure, there are two mutually perpendicular tensile stresses of 800 N/cm² and 400 N/cm². If the Poisson's ratio is 0.25, what would be the equivalent stress in simple tension according to maximum principal strain theory?

Which theory of failure represents the given statement? 'The failure will occur in a material when the maximum principal strain reaches the strain due to yield stress in simple tension or when the minimum principal strain reaches the strain due to yield stress in simple compression.'

According to St. Venant's theory for brittle material, the shape of the yield locus is _

Maximum shear stress theory was postulated by

The stresses at a point on the circumference of a circular rod in tension and shear are 120 MPa and 60 MPa respectively. If the yield strength of the rod material is 340 MPa, the factor of safety in the rod material using maximum shear stress theory is nearly equal to

What do we alternatively call the Von-Mises theory?