Classification of Hydraulic Turbines
Turbines are classified on various basis :
A) Head and Quantity of water available
B) Name of originator
C) Nature of Working of the blades
D) Direction of flow of water
E) Axis of Turbine Shaft
F) Specific Speed
According to Head and Quantity of water available
1. Low Head - ( 2-12m )
Kaplan ot Propeller Turbine
2. Medium Head - ( 16-70m )
Either Kaplan...
Cutting Tools used in Computer Numeric Control Machining - All details
Cutting Tool Materials ;
1. High Carbon Steel
2. High Speed Steel (HSS)
3. Cast Alloy
4. Cemented Carbide
5. Ceramics
6. Sialon
7. Diamond
8. Carbon Boron Nitride (CBN)
High Carbon Steel ;
Hardness of tool is determined by the carbon content which ranges from 0.65 to 1.5 %
More carbon content = More wear resistance.
...
Q.1 ] What is the highest RPM of CNC Lathe Machine ?
ANS - 4,500.
Q.2 ] What is the highest RPM of CNC Milling Machine?
ANS - 10,000.
Q.3 ] What is the highest RPM of CNC Jig Grinding Machine?
ANS - 80,000 to 1L.
Q.4 ] What is cycle time in CNC Machining?
ANS - It is the time from start of the program...
Various Secret Hot key combinations for Windows
Win key - start menu, In win 8.1 it opens previous menu.
Win + a - action center quick access to computer settings , for win 10 and above.
Win + b - selects first icon in notification area, switch between them using arrow keys.
Win + ctrl + b - new...
Nandan Kanan Zoological Park All Animals Images:
Nandan Kanan Zoological Park is situated in Bhubaneshwar, Odisha. It comprises of all variety of animals and birds. The area to visit is very large and can take up to 10-12 hours to complete the whole visit. There is also a small lake with boating facilities.
Here you can find how mesmerizing your trip...
What is Work ?
In our daily language, we use the word work for some sort of exertion, physical or mental or at times for various activities e.g. while writing we say that we are doing work.
But in Physics, the term work is used in relation to the movement of the force applied on the body. The work is said...
What is a transformer ?
A transformer is a device by which the amplitude of an alternating e.m.f. can be increased or decreased.
It does not affect the frequency of the alternating voltage.
It works on the principle of electromagnetic induction and makes use of two coils coupled together with a soft iron core.
Working Principle ;
A transformer cannot be used with direct...
Heat Treatment – A combination of operation involving heating and cooling under controlled conditions for obtaining desired properties in a material.
Heat Treatment also infulences creep resistance of steel. At temperature of 500 degree Celcius or above the max cree resistance is usually produced by normalizing, provided drawing temp. is about 100 degree more than the test temperature
The lowest creep resistance...
Hooke's Law ;
Sir Robert Hooke's (1635 - 1703 ) Law states that the stress is directly proportional to strain upto elastic limit.
Heat Treatment - A combination of operation involving heating and cooling under controlled conditions for obtaining desired properties in a material.
Those properties of a material that define its behavior under applied force are called mechanical properties.
Mechanical Properties ;
These...
- Advertisement -
