What is The Physical Significance of Grashof Number ?
http://residentholdings.com/?et_core_page_resource=et-core-unified-cached-inline-styles447 Grashof Number is a non-dimensional number used both in fluid mechanics and heat transfer. This number is frequently used in cases where natural convection is involved. It is named after a German engineer Franz Grashof. There are many dimensionless groups or numbers available which come into play according to the respective dominant [...]
Functions of Different Parts of a Lathe Machine
P’ot’i Previously I posted an article about the different parts of a lathe machine. In this article I will try to discuss all the functions of the parts in details. Click on the picture for a better view of the picture. The parts are indicated in the picture. Find out the parts and read about the functionality – Functions of Lathe Machine [...]
Refrigeration & Air Conditioning Interview Questions with Answers Part – 03
Spartanburg We got some good response for the previous articles of refrigeration and air conditioning . So a stream of articles relating to refrigeration and air conditioning interview questions will be published for some time. If you haven’t tried the previous articles then have a look at the following links : Refrigeration & Air [...]
Differences Reaming and Boring Tools – Basics
Types of Reaming tools / Reams Reams are needed to ensure exact size of the hole . It also provides great surface finish. A small amount of material is remove from the drilled hole. Reamer can be hand operated or machine operated. But they should be operated at slow speed. Names of the different types of reams are as follows – [...]
Different Parts of CNC Lathe Machine
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 the job. At the time [...]
Basics of Mechanical Engineering – Interview Questions Part-10
I tried to cover some basic mechanical interview question in this article. You will find more than 50 Mechanical Engineering Questions which include thermodynamics, solid mechanics, mechanics of machinery, fluid mechanics, Heat transfer, Refrigeration and Air Conditioning Viva Questions, Power Plant Questions and many more. Hope this [...]
Stress-Strain Curve for Mild Steel with Stress-Strain Relationship
Before entering to the main topic of stress-strain curve we have to know about stress and strain. elasticity and plasticity, hook’s law and young’s modulus of elasticity. What is stress ? If a applied force causes change in the dimension of the material then the material is in the state of stress. If we divide the applied [...]
Refrigeration and Air Conditioning Problems Solution Part -2
In this article we will be solving a general refrigeration and air conditioning problems solution. We will also discuss about some common questions and answers. Please follow the link for viva questions of refrigeration and air conditioning. Refrigeration and Air Conditioning Interview Questions Part – 01 Mechanical Engineering [...]
Mechanical Engineering Interview Questions Part – 9
This part 9 of the mechanical engineering inteview questions involve the questions and answers of fluid mechanics , power plant engineering, thermodynamics etc. For further information go through these links: Mechanical Engineering Interview Questions Part 01 Mechanical Engineering Interview Questions Part 02 Mechanical Engineering [...]
Combined Cycle Power Plant with Topping and Bottoming Cycles
In combined cycle power plant Gas turbine and steam cycle work together. Steam Turbine runs on Rankin Cycle and Gas Turbine runs on Brayton Cycle. The diagram of the cycle is shown here. Please read : Gas turbine cycle with reheat , regeneration and intercooling. Steps involved in the running of Combined Cycle Power Plant (CCPP) Fuel is [...]