PRINCIPAL STRAINS MULTIPLE CHOICE QUESTIONS (MCQ) WITH ANSWERS MCQ are helpful in understanding Principal Strains. It also increases the level of clarity. Stresses are not measurable. Strains are measured with mechanical and electrical strain gauges. Principal stresses are found from strains. Planes of principal strains are same as the planes of principal stresses. These planes […]
MOHR’S STRESS CIRCLE MULTIPLE CHOICE QUESTIONS (MCQ) WITH ANSWERS MCQ on Mohr’s circle increases knowledge about principal stresses. Principal stresses are maximum and minimum normal stresses. It also gives maximum shear stress as difference of the two principal stresses. Find Principal planes and planes of maximum shear stress from Mohr’s stress circle. Radius represents the […]
POLAR & MOMENT OF INERTIA MULTIPLE CHOICE QUESTIONS (MCQ) WITH ANSWERS MCQ increase the clarity and understanding. Moment of inertia plays its role in bending. Higher value resists bending. Highest value is for I-shaped cross section. Polar moment of inertia is important for circular motion as in shafts. Higher value of polar moment of inertia […]
THEORIES OF FAILURE CLASS NOTES FOR MECHANICAL ENGINEERING Failure means breaking or deforming. Failure of ductile material is entirely different from the failure of a brittle material under same type of load. There are five well known theories of elastic failures. These theories explain material behavior under simple or complex loaded condition. It is elastic […]
SIMPLE STRAINS MULTIPLE CHOICE QUESTIONS (MCQ) WITH ANSWERS MCQ on simple strains help in understanding of strength of materials. There are linear, lateral and angular strains. These are of use only within elastic limit. Linear strain is due to (a) Tensile stress (b) Complex stress (c) Tensile & complex stresses (d) None ANS: (c) 2. […]
COMBINED AXIAL AND BENDING LOADS CLASS NOTES It is applicable for a beam column. A beam carries transverse loads (bending loads) and a column carries an axial compressive load. Examples of such beams are chimneys, dams, retaining wall, trees, poles and building structures. Axial compressive load is due to the self weight and the bending […]
COLUMNS & STRUTS MULTIPLE CHOICE QUESTIONS (MCQ) WITH ANSWERS MCQ on columns & struts increase confidence and understanding. Columns are structural members subjected to axial or eccentric loads. Short column fail by compression. Medium columns fail by compression & buckling. Long columns fail by buckling alone. Fig. Types of Columns-Short-Medium-Long (depends on slenderness ratio and material […]
COLUMNS & STRUTS CLASS NOTES FOR MECHANICAL ENGINEERING Column is a vertical member under axial compressive load. Type of column is decided by a slenderness ratio. For various types of columns, value of slenderness ratio depends on the end conditions and material of the column. Horizontal and inclined long columns are struts. There are three […]
STRESSES IN ROTATING DISCS MULTIPLE CHOICE QUESTIONS (MCQ) WITH ANSWERS MCQ help in better understanding of stresses in rotating discs. topic. It increases clarity too. All this help in the practical applications of the subject fundamentals. It is helpful in research & further improvements. Fig. Hollow Rotating Disc Fig. Stressed Element Rotating Disc Fig. […]
INITIALLY CURVED BEAMS MULTIPLE CHOICE QUESTIONS (MCQ) WITH ANSWERS MCQ increase clarity and understanding. The centroid axis does not coincide with the neutral axis. Maximum stress occurs on the innermost fiber. Fig. Initially Curved cross section & Stress Distribution hi distance of innermost fiber from N.A. ho distance of outermost fiber from N.A. Q1. Centroid […]