INTERVIEW SHORT QUESTION ANSWERS -Simple stresses and strains-1 Q1. Write the relationship between true strain and conventional strain as well as relationship between true stress and conventional stress. A. When a tensile load is applied to a ductile material, its length increases and area of cross section decreases. When load is applied beyond a certain limit, […]
INTERVIEW SHORT QUESTION ANSWERS -Torsion Q1Find the ratio of the torsional moments of resistance of a solid circular shaft of diameter ‘D’ and a hollow circular shaft having external diameter ‘D’ and internal diameter ‘d’. A. Torsional moment is torque’ T ’. Tsolid = (πD3/16) z Thollow = π(D4—d4)/16 D) z Ratio Tsolid / Thollow […]
INTERVIEW SHORT QUESTION ANSWERS–Simple stresses and simple strains-2 Q1. What is meant by SOM? One material has different strengths under various types of loads. For example: concrete has strength in compression as 30 N/mm2. In tension, it has strength of 3 N/mm2. It is better to use concrete under a compressive load and NOT under […]
INTERVIEW SHORT QUESTION ANSWERS -SPRINGS Keywords:Close coiled and Open coiled springs-Neutral axis 8. What is the difference between Close coiled and Open coiled springs? Closed Coiled Helical Spring The wire of this spring is in tension and hence also called a tension spring. In this case, the torsional shear stress is extremely high. Distance […]
Short Interview Question Answers On bending Q. What is neutral axis? In bending of beams, the neutral axis is the line where neutral plane intersects the area of cross-section. At this axis there is zero stress and zero strain. Neutral plane is a fiber of zero stress. Q. Define perpendicular axis theorem. It is the moment […]
Short Interview Question Answer -Bending Q1. A beam of square section with side ‘a’ is used with its diagonal horizontal. Find the section modulus of the beam. A. There will be one triangle above and another below the horizontal diagonal. The moment of inertia of one triangle about the base is bd3/12= a4/12. Therefore […]
Short Interview Question Answers on column and struts Q What is a column? It is a vertical member under an axial compressive load. Load may be axial or eccentric. It can be a short, medium or long column depending upon the Le/kmin ratio. This ratio is called the slenderness ratio. In this, Le is the […]
Short Interview Question Answers on Bernoulli Equation 1. What is Bernoulli equation? Bernoulli equation is the mathematical form for the law of conservation of energy for a flowing liquid. p1/ ρ+ ρ v12/2 + z1 = p2/ ρ + ρ v22/2 + z2 = Constant Flow work + kinetic energy + Potential energy = […]
Short Interview Question Answers on Stresses Q. What is a bending stress? What is its symbol? What are its units? Bending stress is caused due to load perpendicular to the length (lateral load) in a beam. Bending of beams causes both tensile and compressive stresses at the same time and these stresses are not constant […]
Short Interview Question Answers on simple stresses What is meant by Strength of Materials? This subject tells which materials are strong in tension/compression/bending/torsion/buckling loads. Hence depending upon the application, one can select the material for that application. Application includes chair, table, rod, shaft or any item one can think of. The selection is possible after […]