Machine Design Online Test – Multiple Choice Questions and Answers 1. The lower deviation is the algebraic difference between the minimum limit and the basic size actual size and the corresponding basic size maximum limit and the basic size none of the above 2. The metal suitable for bearings subjected to heavy loads is silicon bronze monel metal phosphor bronze white metal 3. In a gear, having involute teeth, the normal to the involute is a tangent to the pitch circle base circle addendum circle dedendum circle 4. A sliding bearing which operates without any lubricant present, is called boundary lubricated bearing hydrodynamic lubricated bearing hydrostatic lubricated bearing zero film bearing 5. The rivet head used for boiler plate riveting is usually pan head snap head counter sunk head conical head 6. The radial distance of a tooth from the pitch circle to the top of the tooth is called clearance working depth addendum dedendum 7. When carbon in the cast iron is principally in the form of graphite, the cast iron will be of grey colour white colour brown colour yellow colour 8. In order to remove internal stresses produced by hardening the steel, the process usually adopted is tempering spheroidising normalising annealing 9. A localised compressive stress at the area of contact between two members is known as bearing stress bending stress tensile stress shear stress 10. Euler’s formula for a mild steel column is not valid if the slenderness ratio is 60 90 100 120 Loading … Question 1 of 10
