Mechanical Guru's

PREVIOUS YEAR UNSOLVED QUESTION PAPERS – 1 (KURUKSHETRA UNIVERSITY) CAD / CAM QUE NO. – 1 (A)     DEFINE CAD CAM & CIM. GIVE A BRIEF DESCRIPTION OF THEIR APPLICATION IN INDUSTRIES? (B) DEFINE EXPLICT, IMPLICIT AND PARAMETRIC REPRESENTATION AND WHAT ARE THEIR ADVANTAGES? QUE NO. – 2  (A)     WHAT IS GROUP TECHNOLOGY? DISCUSS MACHINE CELL DESIGN IN G.T. ?   (B)   EXPLAIN THE BASIC CONCEPT OF GEOMETRIC AND SOLID MODELLING USED IN CAD APPLICATION? QUE NO – 3   FIND THE DEGREE OF BEZIER CURVE CONTROLLED BY THREE POINTS (4, 2), (0, 0) AND (2, 8). ALSO   FIND THE EQUATION OF THE BEZIER CURVE IN PARAMETRIC FORMAT WITH PARAMETER “µ”? QUE NO. – 4 EXPLAIN 3-D SCALING, ROTATION, REFLECTION AND TRANSLATION WITH SUITABLE EXAMPLE? QUE NO.–5 (A) DISCUSS BRIEFLY SWEEP REPRESENTATION GIVING BASIC ELEMENTS AND BUILDING OPERATION WITH EXAMPLES?   (B) DEFINE SURFACE ENTITIES AND DERIVES THE PARAMETRIC EQUATIONS OF THE FOUR ANALYTICAL SURFACE MODELS? QUE NO. – 6 EXPLAIN

RECIPROCATING PUMP TEST RIG Reciprocating pump is a positive displacement plunger pump. It is often used where relatively small quantity of water is to be handled and delivery pressure is quite large. Reciprocating pump is widely used as Automobile Service Stations, Chemical Industries, or as metering and dosing pumps. The “ UNICOOL ” apparatus consists of a single cylinder, double acting reciprocating pump mounted over the sump tank. The pump is driven by Dimmer Control DC motor with stepped cone pulley. An energy meter measure electrical input to motor. Measuring tank is provided to measure discharge of the pump. The pressure and vacuum gauges provided to measure the delivery pressure and suction vacuum respectively. SPECIFICATIONS Ø Reciprocating pump – 37.5mm bore, stroke length 49mm, double acting with air vessel on discharge side, suction 28mm, discharge 22mm. Ø D.C motor, Dimmer Control Type. Ø Measuring tank – ___mm x ___mm x ___mm height. Ø Sump tank – 600mm x 900mm x 600m