Basics

Thermodynamics are classified into two types they are Equilibrium Thermodynamics Non-equilibrium thermodynamics Equilibrium thermodynamics are further divided into three types they are Classical Thermodynamics Kinetic Theory Statistical Thermodynamics Classical Thermodynamics: Classical thermodynamics is a science which deals with the large-scale and microscopic properties of matter. Common parameters are coefficient of expansion, specific heat capacities, compressibility, magnetic…

Apart from the type of fuel used, the engines are also divided on the basis of a lot of things, such as the presence of a spark plug in Petrol engines and a fuel injector in Diesel engines. We also know that lighter vehicles such as motorcycles, scooters, and cars typically use petrol in their…

Various functions of cutting fluids 1.      Cutting fluid cools the work piece and tool by carrying away the heat generated during machining. 2.      It acts as lubricant at the friction zones, hence tool life increases. 3.      As friction get reduced, the forces and electricity power consumption decreases. 4.      Using cutting fluids produces better surface finish to the work piece. 5.      It causes…

Evaporator is a heat exchanger which removes the heat from stuffs or foods to be cooled by evaporating (Evaporation condition: BP < Evaporation temperature) the low pressure liquid refrigerant while passing through it. At low pressure, Boiling Point (BP) of refrigerant is low, well below room temperature, thus when exposed to room temperature, liquid refrigerant…

1. On the basis of mode of actuation: 1.      Foot brake (also called main brake) operated by foot pedal 2.      Hand brake – it is also called parking brake operated by hand 2. On the basis of mode of operation 1.      Air brakes 2.      Electric brakes 3.      Hydraulic brakes 4.      Mechanical brakes 5.      Vacuum brakes 3. On the Basis of Action on…

Today’s IC engines can be classified in several ways. Some of the ways of classification of Internal Combustion (IC) engines is listed below: 1. Based on application §  Automobile Engine §  Aircraft Engine §  Locomotive Engine §  Marine Engine §  Stationary Engine 2. Based on basic engine design §  Reciprocating: Single cylinder, Multi-cylinder In-line, V, radial, opposed cylinder, Opposed Piston. §  Rotatory:…

1. HEAVY DUTY BATTERIES are still very popular and have been around for many years because they are so cheap to purchase. Heavy Duty batteries work best in low drain devices such as AM/FM radios flashlights, smoke alarms and remote controls. Over the lifetime of the device, rechargeable alkaline batteries will provide the better value and…

The “zeroth law” states that if two systems are at the same time in thermal equilibrium with a third system, they are in thermal equilibrium with each other. If A and C are in thermal equilibrium with B, then A is in thermal equilibrium with C. Practically this means that all three are at the same temperature, and…

The control and movement of the lathe machines can be done with the help of computers. The function of the lathe machine actuated by the Computer Numerical Controls (CNC) is known as CNC lathe. Have a look at the figure for a clear idea – CNC Lathe Machine Parts Vice: Vice is actually like a clamp which holds…