Short Interview Questions Answers ON STRENGTH OF MATERIALS – Numerical problems on (Second moment of inertia, elongation due to self weight and external load, Section modulus, Deflection at free end of a cantilever, Ratio of torsional moments of solid and hollow shafts, ratio of maximum bending and shear stresses in a shaft under M and […]
SHORT INTERVIEW QUESTIONS ANSWERS — STRENGTH OF MATERIALS — SHEET 5 — True stress and true strain Q. Why is the true stress strain diagram above the conventional stress strain diagram and compressive true stress strain diagram is below the conventional stress strain diagram? A. True stress strains are with respect to actual area of […]
SHORT INTERVIEW QUESTIONS ANSWERS —STRENGTH OF MATERIALS — SHEET 4 — Difference between a shaft and a beam, Factor of safety, Flexural rigidity of a beam, Measurement of ductility and Hooke’s Law Q. Differentiate between a shaft and a beam. A. Difference between a shaft and a beam are: Sr. No. Shaft Beam 1. It […]
Short Interview Questions Answers —STRENGTH OF MATERIALS — SHEET 3 — assumptions used in Euler’s Theory of columns, Slenderness ratio, Bulk modulus, relation between Young’s modulus and modulus of rigidity, 0.2 % proof stress and perpendicular axis theorem Q. Write assumptions used in Euler’s Theory of columns. A. 1. Column is initially straight. 2. Load applied […]
Short Interview Questions Answers—STRENGTH OF MATERIALS — SHEET 2 — Macaulay’s method superior to double Integration method, Poisson’s ratio, Distinguish between thin and thick cylinder, What happens to bending moment at the point of changing shear force, Definitions of shear force and bending moment, Assumptions used in bending equation Q. Why is Macaulay’s method […]
Short Interview Questions Answers—STRENGTH OF MATERIALS — SHEET 1 — Neural axis of a beam, equivalent length of a column, thermal stresses, principal planes, Point of Contra-flexure, parallel axis theorem, Hollow shaft superior to solid shaft Define neutral axis of a beam. It is a line in the cross section of the beam where […]
Difference between Metals and Non-Metals Sr. No. Metals Non-Metals 1. Metals are solid at room temperature. Mercury is an exception. Non-Metals are solids, liquids and gases at room temperature. 2. These are malleable i.e. These can be changed into thin sheets under a compressive load. Non metals are not malleable. These get crushed under a […]
Multiple Choice Questions (mcq) on Strength of Materials – Theories of Elastic Failure Maximum principal stress theory is applicable to (a) Ductile materials (b) Brittle materials (c) Composite materials (d) None (Ans:b) Under maximum principal stress theory, maximum principal stress is equal to (a) Allowable stress in tension (b) Allowable stress in compression (c) Allowable […]
Multiple Choice Questions (mcq) on Strength of Materials – Springs — Leaf Springs and Helical Springs Leaf springs are used in (a) Scooters (b) Bikes (c) Trucks (d) None (Ans: c) Leaf springs use (a) All full length leaves (b) All leaves of different lengths (c) Few full length leaves with truncated leaves (d) None […]
Multiple Choice Questions (mcq) on Strength of Materials – Slope and Deflection—2 Maximum deflection in a S.S.Beam with ‘W’ not at the center will be (a) Wb (L2 –b2)1.5/3√3EI (b) Wb (L2 –b2)1.5 /6√3EI (c) Wb (L2 –b2)1.5/ 9√3EI (d) None (Ans: c) Deflection under the load in a S.S.Beam with ‘W’ not at the […]