5 Basic Operations of Lathe Machine

(i) Facing: This operation is almost essential for all works. In this operation, as shown in fig., the work piece is held in the chuck and the facing tool is fed from the center of the work piece towards the outer surface or from the outer surface to the center, with the help of a cross-slide.
(ii) Plane Turning: It is an operation of removing excess amount of material from the surface the surface of the cylinder work piece. In this operation, shown in fig., the work is held either in the chuck or between centers & the longitudinal feed is given to the tool either by hand or power.
(iii) Step Turning: It is an operation of producing various steps of different diameters of in the work piece as shown in fig. This operation is carried out in the similar way as plain turning.
(iv) Drilling : It is an operation of making a hole in a work piece with the help of a drill. In this case as shown in fig., the work piece, by rotating the tail stock hand wheel. The drill is fed normally, into the rotating work piece, by rotating the tail stock hand wheel.
(v) Reaming : It is an operation of finishing the previously drilled hole. In the operation as shown in fig., a reamer is held in the tailstock and it is fed into the hole in the similar way as for drilling.

New Generation of Electricity

The invention of a new generation of electricity from the
water inside the water faucet in an easy way and take
advantage of the resulting energy to light electric lamps.

Five Principal Components in Cooling System.

Vehicle has five principal components in its cooling system.
i.) Radiator: — an auto radiator has a set of tubes called the "core" that the coolant flows through. Cooling fins surround the core. As air passes through the fins, the coolant releases its heat to the fins, which dissipate the heat.
ii.) Radiator cap :— there has to be a place to pour in coolant and the radiator cap covers that filling hole. The cap is also designed to seal the system to a specific pressure.
iii.) Radiator hoses: — the coolant goes from the radiator to the engine through a series of hoses that are sturdy and flexible enough to handle engine vibration and high heat.
iv.) Thermostat :— like the device on your home heating/ cooling system, the engine thermostat keeps the engine at the proper operating temperature.
v.) Water pump: — this is the heart of the engine cooling system. It pumps coolant through the whole cooling system, and into the engine block.