Unit 5: Mechanical Principles and Applications

Assessment and grading criteria





P1 Calculate the magnitude, direction and position of the line of action of the resultant and equilibrant of a nonconcurrent coplanar force system containing a minimum of four forces acting in different directions M1 Calculate the factor of safety in operation for a component subjected to combined direct and shear loading against given failure criteria D1 Compare and contrast the use of D'Alembert's principle with the principle of conservation of energy to solve an engineering problem
P2 Calculate the support reactions of a simply supported beam carrying at least two concentrated loads and a uniformly distributed load M2 Determine the retarding force on a freely falling body when it impacts upon a stationary object and is brought to rest without rebound, in a given distance D2 Evaluate the methods that might be used to determine the density of a solid material and the density of a liquid.
P3 Calculate the induced direct stress, strain and dimensional change in a component subjected to direct uniaxial loading and the shear stress and strain in a component subjected to shear loading M3 determine the thermal efficiency of a heat transfer process from given values of flow rate, temperature change and input power  
P4 Solve three or more problems that require the application of kinetic and dynamic principles to determine unknown system parameters M4 Determine the force induced in a rigidly held component that undergoes a change in temperature.
P5 Calculate the resultant thrust and overturning moment on a vertical rectangular retaining surface with one edge in the free surface of a liquid  
P6 Determine the up-thrust on an immersed body
P7 Use the continuity of volume and mass flow for an incompressible fluid to determine the design characteristics of a gradually tapering pipe
P8 Calculate dimensional change when a solid material undergoes a change in temperature and the heat transfer that accompanies a change of temperature and phase
P9 solve two or more problems that require application of thermodynamic process equations for a perfect gas to determine unknown parameters of the problems







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