Pump | Definition, Types, Applications [A Brief Guide]

What is a pump? A pump is a mechanical device which is used to move fluid (sometimes also slurry) from one place to another. One of the examples of a pump is the water pump which is used in our houses to carry water from the ground to the tank on the top of house.… Read More »

Surface Tension | Definition, Formula, Examples, Capillary Effect

What is surface tension? Surface tension (or ST) is a property of fluid which is responsible for the formation of enclosed surfaces. For example, Mercury droplets are near spherical (and can also be rolled very easily) and water drops hanging from a tree branch are also near spherical. It is the property which is responsible… Read More »

Types of Fluid Flow | A Brief Guide with Comparison

Types of fluid flow On the basis of different flow conditions, fluid flow can be classified into various types. Viscous and inviscid flow One the basis of viscosity of fluid (in flow) we can classify fluid flows into two types. Viscous Inviscid (Non-Viscous) In viscous flow, the resistance provided by viscosity is considerable. In Inviscid… Read More »

Fluid | Definition, Types, Properties, Examples [Brief Guide]

What is a fluid? Matter around us exists in three phases (excluding plasma) Solid Liquid Gas From the above three phases liquid and gas are combinedly known as fluids. The main difference between fluids and solid lies in their ability to resist shear stresses. When a constant shear force is applied, a solid eventually stops… Read More »

Chain Drive | Definition, Types, Advantages, Disadvantages

What is a chain drive? Before understanding chain drive, let us first understand ‘What is a Chain?’. A chain can be defined as a series of links connected by pin joints. Now we can move on to chain drive. A chain drive consists of an endless chain wrapped around two sprockets. Attribution: By Andy Dingley (scanner)… Read More »

Brakes I Definition, Types, Advantages, Disadvantages [Full Guide]

What is a Brake? Brake (or Brakes) is a Mechanical device which absorbs kinetic energy of moving systems and brings them to rest. This absorbed kinetic energy is converted into heat and then dissipated to the environment. One of the well-known examples of brakes is in automobiles, where they are used to either slow down… Read More »

Clutch | Definition, Types, Advantages, Disadvantages [Full Guide]

What is a Clutch? A clutch is a mechanical device which is used to connect (or disconnect) two rotating shafts on the will of operator. One of the most prominent application of clutch is in modern automobiles. Many times, it has been found that people confuse between Clutch, Coupling and Brakes. Let us understand differences… Read More »

Coupling | Types, Advantages, Disadvantages, Applications

What is a coupling? A coupling is a mechanical device which is used to hold two rotating shafts together. It is a permanent joint, unlike clutch which can be disengaged on the will of operator. With the help of couplings, we can join two shafts which are intersecting, colinear or parallel (with a small distance).… Read More »

Key | Functions, Types, Advantages, Disadvantages

What is Key? A key is a machine element which is used to connect a shaft to other machine elements like Gears, Pullies, Couplings, Sprockets or Flywheels. Functions of the key There are two basic functions of key Transmit torque to hub and vice versa Prevent relative motion of the shaft and the joined machine… Read More »